A pressure steam treatment apparatus according to the invention includes a pressure steam treatment chamber and labyrinth sealing chambers. The labyrinth sealing chambers are respectively arranged on a fiber bundle inlet and on a fiber bundle outlet of the steam treatment apparatus, having a running path of the fiber bundle in a horizontal direction and having plural labyrinth nozzles on top and bottom of the running path. The difference between a maximum value and a minimum value of the distance in the perpendicular direction of the top and bottom side labyrinth nozzles, of a pair of opposing labyrinth nozzles is 0.5 mm or smaller when the ambient temperature of the labyrinth sealing chamber is 140° C. This structure ensures that the energy cost can be reduced, the deformation of the apparatus and also, the raise of fuzz on the fiber bundle and fiber bundle breakage can be prevented at the same time.

The device for producing a uniform or profiled fleece or a fiber flock mat includes a material dispensing device which produces a fleece and a transport device for the further transport of the fleece. The device also includes a measuring device to determine a transverse profile and a longitudinal profile of the fleece by measuring the mass per unit area of the fleece across its width, and a profile-changing device for supplying individualized fibers or fiber flocks to the fleece. A control unit controls the profile-changing device on the basis of the results of the measuring device in such a way that the profile-changing device supplies the individualized fibers or fiber flocks section by section in a targeted manner. Thus, depending on the purpose of the application, a uniform fleece or a fleece with a nonuniform transverse profile or longitudinal profile can be produced.

An adjustable hanging system comprising a first support portion with a first portion configured to be removably mounted to a fixture and a second portion configured to guide him to hold an article, a second support portion with a first portion configured to be mounted to a fixture and a second portion configured to hold an article, and a spacer configured to connect the first and second support portions at an adjustably selected separation distance. A method of use is also disclosed.

A connection device for setting up an arrangement of a plurality of loudspeaker boxes that are suspended beneath one another comprises a first assembly rail which is provided for assembly on a first loudspeaker box and to which a latching part is attached, and a second assembly rail which is provided for assembly on a second loudspeaker box and to which a retaining element that interacts with the latching part is attached. Herein, a free path length of a longitudinal displaceability of the latching part in relation to the first assembly rail is preselectable. Furthermore, the position of the retaining element in relation to the second assembly rail is preselectable.

Disclosed is a bagging station support frame that includes a bagging station holder and a rail coupler coupled to the bagging station holder. The bagging station holder holds a bagging station. A bagging station holds a plurality of shopping bags ready to receive products purchased by a customer. The rail coupler couples the bagging station support frame to a rail. Rails are common fixtures throughout retail stores. The bagging station support frame can be coupled to a rail at various locations throughout the retail store. A bagging station coupled to the bagging station support frame will be available for customers to bag their purchases wherever the bagging station support frame with bagging station is mounted. By mounting bagging station support frames with bagging stations throughout the retail store, customers can easily bag their purchases as they shop, without having to find a checkout counter to obtain shopping bags.

A molten metal pump apparatus that includes a base member, at least two (2) support members or posts, and a post socket. The lower end of each post is mounted to a mounting bore of the base member and forms a cement-less pump joint. The upper end of the post is connected to the post socket to form a cement-less pump joint. The post socket is defined by a first half and a second half that have an open or separated position for receiving the upper end of the post and a closed or joined position for securing the upper end of the post.

An undermount drawer slide mounting clip releasably attaches a drawer to a drawer rail assembly mounted in a cabinet carcass. The apparatus is capable of effecting positional adjustments of the drawer in three directions without removing the drawer from the cabinet carcass. The apparatus is comprised of a body slidingly engaged with a bonnet. A trigger pivotally connected between the body and the bonnet. A spring loaded catch slidable within the bonnet and acted on by the trigger to releasably attach the apparatus to a drawer rail assembly. A threaded spindle rotates within the base and adjusts the horizontal position of the drawer. A ramp adjustably connected to the base adjusts the vertical position of the drawer. A plunger extends from a housing connected to the body to adjacent the drawer rail assembly and adjusts the depth of the drawer.

A suspension system has an isolator cylinder with a primary reservoir having a primary reservoir volume, a secondary reservoir having a secondary reservoir volume, a manifold and a primary duct fluidly connecting the primary and secondary reservoirs for controlling the flow rate of the fluid between the primary and secondary reservoirs, and optionally a valve for controlling a flow rate of a fluid through the duct, and a control system for operating the valve. A shock absorption system for a vehicle seat is provided comprising an isolator with at least one secondary pneumatic reservoir connected with a fluid duct to the primary reservoir of an isolator. The reservoir volumes, length and cross sectional area of the connecting duct and fluid flow control valves may be determined using methods including algorithms, experimental testing and models to determine the optimal values to achieve consistent shock mitigation across a range of seat loads.

A weight system for supporting a free-standing object comprising first and second upper panels, a least one side panel, a lower panel, and a closure system. The panels are joined to define an upper wall and at least side wall, with the first and second upper panels defining a fill opening in the upper wall and a container defining an interior chamber. The closure system is arranged to allow the container to be configured in a closed configuration in which access to the interior chamber through the fill opening is substantially prevented and an open configuration in which access to the interior chamber through the fill opening is allowed.

A conduit spacing and mounting system and method are provided for prefabricating multilayered assemblies of conduits and mounting them end-to-end in a building. The system includes a pair of spacer plates, each having a same pattern of conduit-receiving openings, and a plurality of clamping assemblies, each including a bracket which is discrete from and individually attached to the spacer plate adjacent to one of the conduit-receiving openings. The clamping assemblies are oriented at different angles relative at different rows of the conduit-receiving openings to provide access for a clamp-tightening tool in the spaces between different rows of conduits. The use of spacer plates largely prevents lateral misalignments between the conduits, and the use of a separate bracket formed from a harder, stronger or thicker metal than the spacer plate greatly increases the strength and reliability of the clamping force applied to the conduits.

Disclosed are a method and/or a system of a mounting bracket. In one aspect, the mounting bracket includes a rectilinear faceplate. The rectilinear faceplate has three edges. The adjacent edges produce a specific angle between the adjacent edges. The rectilinear faceplate is capable of being attached to an item to be mounted onto a surface. The mounting bracket includes three walls where each edge is adjoined perpendicular to a corresponding wall. The mounting bracket includes three lips. Each lip is adjoined perpendicular to the corresponding wall such that each edge is associated with a corresponding lip. Each lip is capable of attaching to a fixture affixed to the surface. The mounting bracket allows the item to be mounted on the surface in two specific orientations. The two specific orientations are determined based on being able to rotate the item by a difference between 180 degrees and the specific angle.

An air mattress apparatus includes an air mattress which comprised of an array of air bladder cells that are individually inflatable to quiescent pressure levels which provide comfortable support for the body of a human, and a pressure-pulse generator controlled by a wave sequence generator for introducing into ordered patterns of air bladder cells a wave-like time sequence of air pressure pulses which vary quiescent pressure levels in the cells, the pressure wave resulting in a traveling wave of support force variation which travels over the surfaces of the pulsed air bladder cells, thus inhibiting formation of bedsores. The wave pattern may optionally simulate water waves and/or rocking motions of a boat to produce relaxing effects.

Play yards and methods of operating the same are disclosed. A disclosed example includes a collapsible upper frame, a collapsible lower frame, and posts to support the upper frame above the lower frame. The posts include respective tracks. The example also includes a foldable, frameless enclosure operatively coupled to the upper frame, the lower frame and the posts. The enclosure has a plurality of sides and a bottom to define an enclosure volume. The enclosure also has a plurality of corner beads dimensioned for receipt in a respective one of the tracks to secure the enclosure to the posts.

A bed vibration system to provide controllable vibrations beneath a mattress, which is located on a bed, the system comprising: a frame attachable to the bed by at least four suspension modules; at least two vibration modules, each vibration module having a rotatable element; at least two travel tracks attachable to the frame, the travel tracks configurable to have the at least two vibration modules respectively displaceable thereupon; and a vibration module control unit configurable to control vibrations and displacement of the respective vibration modules.

The transfer assistance device includes a front supporting part that supports the torso of the person being assisted; a set of sub supporting parts configured to be adjustable in position with respect to the front supporting part; a driving unit that propels and drives each of the set of sub supporting parts toward the person being assisted being supported by the front supporting part; a force sensor that detects a pressure proportional to propulsion of the sub supporting part by the driving unit and counterforce generated by contact of the sub supporting part with the person being assisted; and a computer that controls the driving unit based on the pressure detected by the force sensor so that tightening force on the person being assisted by the sub supporting part approaches prescribed tightening force.

A patient support apparatus having a support table, a transfer plate, which is disposed movably in relation to the support table in a direction and on which a patient is supported for a surgical intervention and/or a medical imaging examination, and a surgical head restraint unit, which is disposed on the transfer plate is provided. The patient support apparatus includes a position monitoring apparatus for monitoring and/or checking a position of the surgical head restraint unit.

A cellular cushion includes a base, a plurality of hollow cells, and support material. The base includes at least a first layer and a second layer. The plurality of hollow cells are coupled to, and extend outward from, only one of the first layer and the second layer. Each of the plurality of cells extends from a root defined at only one of the first layer and the second layer outwardly to an outer end. The plurality of cells are coupled together in flow communication via a plurality of channels extending between the cells. The support material is inserted within at least one of the hollow cells. The second layer coupled to the first layer such that the support material is between an inner surface of said at least one of the hollow cells and the second layer.

A system includes an optical fiber and an interrogator to provide source light to the optical fiber. The system also includes a receiver coupled to the optical fiber. The receiver includes at least one fiber optic coupler that receives backscattered light and that produces optical interferometry signals from the backscattered light. The receiver also includes photo-detectors that produce an electrical signal for each of said optical interferometry signals. The system also includes at least one digitizer that digitizes the electrical signals. The system also includes at least one processing unit that calculates I/Q data from the digitized electrical signals, corrects the I/Q data based on ellipse fitting, determines phase values based on the corrected I/Q data, and determines distributed sensing parameter values based on the phase values.

A method for controlling a refrigerator may comprise controlling at least one of a temperature and humidity of at least one storage area of the refrigerator based on first storage information, receiving, from a second refrigerator different from the refrigerator, second storage information of the second refrigerator, and controlling at least one of the temperature and the humidity of the at least one storage area of the refrigerator based on the received second storage information.

An input device according to an embodiment includes a vibration element, an acquisition unit, and an element controller. The vibration element causes an operation surface to vibrate. The acquisition unit acquires information on at least one of a traveling state and a traveling environment of the moving body. The element controller causes the vibration element to vibrate at a vibration strength according to at least the one of the traveling state and the traveling environment.

A car management system includes, for example, a second terminal generating first and second tokens in response to a request from a first terminal to use a vehicle, and sending the first token to the first terminal; and a third terminal authorizing the first terminal to use the vehicle by generating an access key that provides authority to use the vehicle using the first token and the second token in response to a request from the first terminal for the access key, and providing the generated access key to the first terminal.

A method of monitoring access authorizations by an access monitoring system by a first method, the data carriers or the mobile electronic devices, on which a valid access authorization or an ID is assigned, are detected and the carriers/devices current positions are determined by trilateration or multilateration. A second imaging method is executed, parallel to the first method, and the current position of all persons presented in the entry area is detected by cameras. All persons, with and without valid access authorization, in the entry area are detected so that an ID map and a people map are created. The ID map corresponds to people who have valid access authorization and the people map corresponds everybody in the entry area. An overlay map is created by matching the ID map with the people map, to identify persons with valid access authorization or ID and the people without valid access authorization.

A wireless access control system may include a remote access wireless communications device and a lock assembly to be mounted on a door. The lock assembly may include a lock, a door position sensor, interior and exterior directional antennas, lock wireless communications circuitry, a touch sensor, and a lock controller. The lock controller may be configured to unlock the lock based upon the touch sensor, determine when the door is closed after being opened based upon the door position sensor, determine whether the remote access wireless device is in an interior or an exterior based upon the directional antennas, switch the lock to the locked position when the door is closed and when the remote access wireless device is in the interior, and not switch the lock to the locked position when the door is closed and when the remote access wireless device is in the exterior.

At the time of setting authority, a management apparatus stores a database in which authority information corresponding to authority to physically drive a drive apparatus, which is a tangible object, using a terminal apparatus, and registration identification information corresponding to a subject that is given the authority are associated, and outputs information representing any of the registration identification information; and a permission apparatus receives and stores the information. At the time of exercising the authority, the terminal apparatus outputs information representing identification information, and the permission apparatus receives the information and, when the identification information corresponds to registration identification information comprised in setting information, outputs information representing authority exercise information required to exercise the authority. The terminal apparatus receives the information representing the authority exercise information and outputs a drive signal corresponding to the authority exercise information. By this drive signal, a drive apparatus, which is a tangible object, is physically driven.

A wireless access control system may include a remote access wireless communications device and a lock assembly to be mounted on a door. The lock assembly may include a lock, a door position sensor, interior and exterior directional antennas, lock wireless communications circuitry, and a lock controller. The lock controller determine whether the lock is manually unlocked, determine when the door is closed after being opened based upon the door position sensor, and determine whether the remote access wireless device is in an interior or an exterior based upon the directional antennas. The lock controller may also switch the lock to the locked position when the door is closed and when the remote access wireless device is in the exterior, and not switch the lock to the locked position when the door is closed and when the remote access wireless device is in the interior.

Apparatuses, methods and computer programs for controlling functions of a vehicle. The apparatus for an information system of a vehicle includes a communication module for communication with a mobile device and a control module for controlling the communication module. The control module obtains a key signal and information about a user profile from the mobile device via the communication module. The user profile includes user settings for functions of the vehicle. The information about the user profile includes data about at least one subset of the user settings. The control module controls a locked state of the vehicle based on the key signal and controls at least one subset of the functions of the vehicle based on the information about the user profile.

A system includes a sensor configured to sense an input at a skin surface, a processor configured to receive an output signal from the sensor and generate a haptic control signal based on the output signal, and a haptic output device configured to generate a haptic effect based on the haptic control signal.

A multi-spectral detection device is provided that includes a housing, a bezel spacer, a microphone, an end cap and electro-optical sensors mounted to the end cap. The housing has an inner chamber that holds sensor components. The bezel spacer has a first end and an opposed, second end. The first end of the bezel spacer extends from a first end of the housing. The bezel spacer has a central bezel passage leading to the inner chamber of the housing. The bezel spacer further has at least four side walls. Each side wall is positioned 90 degrees away from an adjacent side wall. A microphone is coupled to each side wall of the bezel spacer in such a manner that each microphone is faced 90 degrees with respect to an adjacent microphone to form a compact acoustic array. The end cap is coupled to the second end of the bezel spacer and the electro-optical sensors are mounted to the end cap.

A system that incorporates teachings of the subject disclosure may include, for example, a method for detecting, by a system including at least one processor, a presence of an object from sensor data generated by a sensor device, retrieving, by the system, from a memory device a plurality of profiles biometrically descriptive of approved objects, asserting, by the system, an alarm responsive to determining from the sensor data that the detected object is not biometrically correlated to any of the plurality of profiles, classifying, by the system, the detected object as an authorized object responsive to determining from the sensor data that the detected object is biometrically correlated to at least one of the plurality of profiles, and notifying, by the system, at least one neighboring device responsive to asserting the alarm or responsive to classifying the detected object as the authorized object. Other embodiments are disclosed.

A patient care system and a corresponding method that provide patient monitoring. The system includes a server, at least one patient communication device, and at least one caregiver communication device. The communication devices send receiving signals and notifications wirelessly to/from the server, and may be adapted to be worn on a user's wrist. Notifications can be sent to the caregiver communication device to notify the user to provide care to a patient in response to a patient request for assistance based on defined conditions, which may be proximity based. The server may track all received and sent notifications and may provide analytics of this information to improve quality of healthcare in a facility.

A computerized monitoring system and method for detecting electrical equipment failure. The system includes a sensor that detects a sound level representative of ultrasonic emissions radiating from electrical equipment to be monitored. A computer system in communication with the sensor is programmed to determine whether the electrical equipment is experiencing one or more of arcing, tracking, or corona based on the sound level detected by the sensor. In some embodiments, the computer system continuously monitors for these conditions based on the sound level detected by the sensor.

The present invention relates to a personal protection service and method, comprise: a user terminal requesting a personal protection service by transmitting basic user information, a situation setting message, and etc., when an emergency arises; a personal protection service server connecting to the user terminal through a mobile communication network to provide an Individual Safety Guard service; and a terminal of an institution connected to the personal protection service server and a social safety network. When an emergency arises, a user who encounters danger presses an emergency button on a terminal to immediately request to the personal protection service server that the emergency be transmitted to the terminal of a guardian or an institute linked to the social safety network to respond within a short period of time, and the location of the user terminal requesting rescue is tracked so that safety personnel can be immediately dispatched to provide safety.

A monitoring and alert system for retro-fitting to latching mechanisms. A master control unit is located proximate to an operator of the system. It includes a user interface having: an input enabling an operator to arm the system and then allow it to operate with minimal interaction of the operator. It also includes an output alerting the operator as to the status of the system in relation to a plurality of prescribed conditions. One or more slave units having sensing units detecting a latched and unlatched state are attached to a discrete latching mechanism for detecting the latching status thereof. Each slave unit comprises sensing means to detect whether the latching mechanism is in a latched state or an unlatched state.

A method and device for the remote control of a function of a vehicle is disclosed. Images of the vehicle are recorded by a camera which is integrated in the mobile control unit. A visual signal is generated at a predetermined position on the vehicle, where remote control is only enabled if the visual signal is recorded by the camera. The device for the remote control of a function of a vehicle includes a mobile control unit with an integrated camera to record the images of the vehicle. A signal generation unit is arranged at a predetermined position on the vehicle for the generation of a visual signal and the vehicle includes a function unit for the control of the function. The function unit is formed in such a way that remote control is only enabled when the visual signal is recorded by the camera.

The invention provides a remote control system, including a cloud server, a first device and a portable electronic device. The first device includes a transmission interface for connecting to a second device. The portable electronic device sets up a transmission path to connect with the first device via the cloud server. The first device transmits type information including a type of the transmission interface to the portable electronic device through the transmission path. The portable electronic device encodes original data based on the type information to generate encoded data conforming to the transmission interface, and transmits the encoded data to the first device through the transmission path. The first device transmits the encoded data to the second device through the transmission interface, so as to control the second device.

Various embodiments are described herein for methods and systems for managing a parking area. In one embodiment, the method comprises receiving a parking authorization request from a parking lot user, the request specifying a parking stall identifier corresponding to a parking stall occupied by the user's vehicle, the request further specifying a parking duration parameter identifying a time duration the user's vehicle can occupy the stall; determining a parking duration rule for the stall based on the parking duration parameter, the rule indicating a parking expiration time; at a first time, receiving a first data associated with the parking stall identifier, the first data comprising an occupancy parameter indicating a presence or absence of a parked vehicle at the identified stall; if the occupancy parameter indicates a presence of a parked vehicle, generate a citation alert for the stall if the first time exceeds the parking expiration time.

Conventional driving support systems have a problem that the driver of a user's vehicle is still at a hazard because the conventional driving support systems cannot make another vehicle irradiate, with its visible light, an obstacle existing at a position which the user's vehicle cannot detect with its on-vehicle radar, etc. According to the present invention, a determination unit 104 determines, on the basis of position information of a first moving object and position information of an obstacle, whether or not the first moving object detects the obstacle, and a controller 105 informs the first moving object of the existence of the obstacle when the determination unit 104 determines that the first moving object does not detect the obstacle.

A method and system are provided in which maintenance vehicles collect information from sensors and operators, forward the collected information to a server, and, is response, receive maps and operator instructions.

A system and method for displaying a vehicle location on a user device includes an in-vehicle infotainment system and the user device coupled to the in-vehicle infotainment system of a vehicle. A global positioning system generates a vehicle position signal at the vehicle. The in-vehicle infotainment system communicates the vehicle position signal to a user device. The user device generates a display comprising the current vehicle position.

Helical wick candle and method of manufacturing this candle. The candle typically comprises a candle with meltable fuel such as wax, and at least one helical wick with a helical radius of at least ¼″ or greater. This helical wick is configured so that as the candle burns, the burning tip of the wick doesn't remain stationary, but rather circles the axis of the wick so as to burn more of the wax than would otherwise be possible with a prior art straight wick candle, at least when the diameter of the candle is larger than the pool of melted wax surrounding the wick. This results in higher fuel burning efficiency, often 1.5× or higher, as well as various interesting artistic shapes as the wick burns. Various wick sheath methods to improve the rigidity and burn resistance of the wick during the burning process are also discussed.

The present invention relates to a combustion device 100 for burning refractory hazardous gases and a burning method for the combustion device. More particularly, the combustion device 110 for burning refractory hazardous gases, which is provided in a scrubber system 1 for burning waste gases, the combustion device 110 includes: a first porous body 141; a second porous body 142; and an igniter for forming a flame surface 143 at the interior of the combustion device 110, wherein the flame surface 143 formed by the igniter is located between the first porous body 141 and the second porous body 142, and so as to form the flame surface 143, at least one of the first porous body 141 and the second porous body 142 is moved to conduct excess enthalpy combustion.

The hydrogen combustion catalyst includes a catalyst metal supported on a carrier made of an inorganic oxide, wherein: a functional group having at least one alkyl group with three or less carbon atoms is bonded to a terminal of a hydroxyl group on the carrier surface by substitution; platinum and palladium are supported as the catalyst metal; and a chlorine content is 300 ppm to 2,000 ppm per 1 mass % of the total supported amount of a supported amount of platinum and a supported amount of palladium. The total supported amount of platinum and palladium is preferably 0.1 to 5.0 mass % based on mass of a whole catalyst. In the hydrogen combustion catalyst according to the present invention, when treating a gas that contains iodine and hydrogen, catalyst poisoning by iodine is suppressed.

Helical wick candle and method of manufacturing this candle. The candle typically comprises a candle with meltable fuel such as wax, and at least one helical wick with a helical radius of at least ¼″ or greater. This helical wick is configured so that as the candle burns, the burning tip of the wick doesn't remain stationary, but rather circles the axis of the wick so as to burn more of the wax than would otherwise be possible with a prior art straight wick candle, at least when the diameter of the candle is larger than the pool of melted wax surrounding the wick. This results in higher fuel burning efficiency, often 1.5× or higher, as well as various interesting artistic shapes as the wick burns. Various wick sheath methods to improve the rigidity and burn resistance of the wick during the burning process are also discussed.

Systems and methods for a pyrolytic oven for processing waste include multiple zones associated with multiple independently-controlled heating sources. The pyrolytic oven may have multiple sensors also associated with each zone. The pyrolytic oven may also include a fuel management system which adjusts a power level of each heating source for each zone independently based on a reading of the corresponding sensor.

Methods, burner, apparatuses, and systems are provided for controlling a velocity of a jet of gas exiting a burner when the gas is heated or not and at a corresponding second higher temperature or lower first temperature. Through the use of a temperature-sensitive magnetic valve, the flow of a gas can be redirected to maintain velocity of the gas as delivered to a combustion chamber based on the temperature of the gas. The temperature-sensitive magnetic valve can redirect flow of the gas based on the magnetic state of a ferromagnetic material. The state of the temperature-sensitive magnetic valve changes based on the temperature of the gas to maintain the velocity of the gas delivered through an outlet of the burner to the combustion chamber. Thus, heated gases and standard temperature gases can be delivered at approximately equal velocities thus maintaining flame size and shape.

A flame powered intermittent pilot combustion controller may include a first power source and a second power source separate from the first power source, a thermal electric and/or photoelectric device, an igniter and a controller. The thermal electric and/or photoelectric device may charge the first power source when exposed to a flame. The controller and the igniter may receive power from the first power source when the first power source has sufficient available power, and may receive power from the second power source when the first power source does not have sufficient available power.

A method of ensuring the safety of exhaust of a water heater includes the following steps: A. start the blower and detect a rotational speed of a motor thereof; B. determine a first range based on the detected rotational speed; C. start the blower and detect the rotational speed of the motor when the water heater is restarted again; D. keep supplying gas to the burner for combustion when the rotational speed detected in step C is within the first range. During operation, a second range is determined by detecting the rotational speed of the motor after an outlet water temperature reaches a corresponding constant temperature range; the rotational speed is continuously detected, and the gas supply is stopped if the detected rotational speed is out of the second range. Thereby, the result of the method would be more accurate regardless of the actual installed status of the exhaust pipe.

A sealpot for a combustion power plant includes a downcomer standpipe which receives solids of the combustion power plant, a bed including a first end and a second opposite end, the first end connected to the downcomer standpipe, a discharge standpipe disposed at the second opposite end of the bed, and an orifice plate disposed between the bed and the discharge standpipe separating the discharge standpipe from the bed. The orifice plate includes apertures disposed at a height above the bed which allow transport of fluidized solids and gas through the orifice plate.

Techniques for controlling a solid fuel combustion appliance, e.g., a wood burning stove, are disclosed. A control system measures an exhaust gas temperature of airflow through an outlet of the solid fuel combustion appliance. The control system determines a derivative of the exhaust gas temperature with respect to time. The derivative of the exhaust gas temperature with respect to time is compared to a predetermined threshold. The control system modulates the inlet damper in response to determining that the derivative of the exhaust gas temperature with respect to time reaches the predetermined threshold.

A candle with an embedded item and methods for manufacturing same are disclosed. A method for manufacturing a candle having an embedded item can include providing a first set of items of a first value and a second set of items of a second value different from the first value, combining the two sets to create a third set, and distributing the items of the third set among a set of candles, one item per candle, where the presence, nature, or value of the item within the candle is obscured. The method can further include selling the candles for a first price, wherein, the presence of the embedded item, the nature of the embedded item, the value of the embedded item, or the value of the embedded item relative to the first price is not known to the purchaser. The embedded item can comprise an object redeemable for a prize.