A novel electric door opener for a garage, or equivalent structure, which uses a rail fixed at one end to a drive assembly and the other end to a mounting support, in which the drive assembly is mounted on the wall over the garage doorway with a pivotable mount, rather than the uniform practice wherein the drive assembly is suspended from the garage ceiling, thus significantly enhancing safety during installation and over the lifetime of the unit. In addition, the means whereby prior art rail type garage door openers, including their drive assemblies and overall mounting methods, are redesigned to reduce the invention to practice. The simplification of mounting hardware and process with this design makes it much easier and safer to install, remove, and replace an assembled rail type garage door opener, using only three removable pins.

A flap assembly is provided for a motor vehicle, with a base, in particular a prestressed flap, in particular a fuel filler flap, which is movably mounted relative to the base in a closing direction, and exhibits a latching element with a stop, which in a closing position engages a counter-stop of the base from the back, so as to counteract an opening of the flap opposite the closing direction, and a movable unlocking element, which in an unlocking position counteracts an engagement of the counter-stop by the stop from the back.

A seal assembly for a vehicle having a first seal and a second seal with a dual end cap disposed between the first and second seals. The dual end cap has a cover that extends beyond the first and second seal, for providing an aesthetic transition between the first and second seals. The dual end cap also has a first projection extending from the dual end cap for coupling the dual end cap to the first seal. The dual end cap also has a hold down feature extending opposite the first projection. The hold down feature engages at least a portion of the third distal end of the second seal such that the portion of the third distal end is sandwiched between the cover and the hold down feature for securing the dual end cap to the second seal.

A modular lighting assembly uses LED banks as the light sources. The assembly allows the power supply and LED banks to be independently replaced. The assembly uses a power supply that is separated from the LED banks and electrically connected to the LED banks with a plug connector that may be unplugged and plugged back in to allow the power supply or LED bank to be independently and readily replaced. The assembly provides for easy replacement of the different components of the assembly. One feature that makes the components easier to replace is that the light modules and/or the power supply may be carried by the housing that is removable from the base mount that is secured to a mounting structure such as a wall or ceiling.

An apparatus and method for assembling a display device to which is coupled a light guide that has smooth surfaces for light-transmission and at least one surface that is for light scattering and internal reflection. The method includes depositing a reflective coating on that surface, and installing the display device with coupled light guide in an interior of a meter housing or casing. A portion of the casing interior is filled with a component, such as epoxy, for sealing the case interior to protect the display device and light guide against water and dust penetration. All surfaces of the light guide are protected from direct contact with the epoxy. This approach greatly simplifies the assembly process and yields a robust display that also prevents light leakage from the light guide.

A filter system and method use a filter housing that defines an interior chamber and that includes an inlet opening extending into the interior chamber. The outer air flow housing has an outlet conduit through which a flow of air having particles is directed toward the inlet opening of the filter housing along a flow direction toward the interior chamber of the filter housing. The outer air flow housing engages the filter housing such that the filter housing is separated from the outer air flow housing along the flow direction to permit at least some of the air to pass around an exterior of the filter housing and exit the outer air flow housing while the particles in the at least some of the air pass into the interior chamber of the filter housing through the inlet opening.

A carbon filter is disclosed. Such a carbon filter includes a carbon-based core having a central cavity, a layer of a polymer-based filter material surrounding the carbon-based core, and at least one end cap fixedly attached to the carbon-based core.

A brace for a wall-mounted toilet, particularly useful for wall-mounted porcelain toilets in hospitals and other health care facilities. The brace a weight receiving structure supported by cantilevered struts that attach the brace to the wall, preferably using the same bolts that attach the toilet to the wall. The weight receiving structure may be seat portion that overlies the rim of the toilet bowl, so that the weight of the user is transmitted from the toilet seat to the seat structure and then to the walls through the struts. Alternately, the weight receiving structure may include an under-bowl support that extends underneath the toilet bowl so that the user's weight is transmitted from the bowl to the wall through the struts. Thus, the cantilevered brace increases the weight-bearing capacity of the wall-mounted toilet. A plastic shroud may be included for enclosing the brace and toilet bowl.

The invention provides a flush free drain trap system. The trap of the invention may be used in any trap system intended to block a back flow of odors from the waste line. A sealant liquid floats on top of the waste liquid in the trap to block odors. The trap uses one passageway to pass liquids to the sewer line, similarly to a conventional drain system, for preventing overflow and allowing cleaning. A second passageway allows the trap to dispose of small amounts of the waste liquid though an opening and a valve operated by the buoyancy caused by the accumulation of waste liquid in the trap. In normal use, waste liquid is passed to the sewer line without loss of sealant liquid. Furthermore, the performance of the trap is not affected by the evaporation of the waste liquid when the trap is unused.

A shower door assembly with an integral directional draining system including a shower door frame having a frame body defining a horizontal drain channel and a plurality of drain holes, at least one side panel having a first end and a second end, the first end of the side panel being sized and configured to be fixedly attached to the frame body and the second end of the side panel further including a hinge mount, and at least one door defining a hinge mount rotatably connected to the hinge mount of the side panel and a door drain channel, the door having an upper portion and lower portion. The door of the present invention flares upward and bows outward such that the upper portion of the door is farther away from the shower door frame than the lower portion of the door.

A faucet assembly includes a base for mounting adjacent a basin of a sink and a spout projecting upward and outward away from the base and terminating at a water outlet. A light emitter is mounted to one section of the spout and emits a beam of light directed toward another section of the spout, wherein the beam of light does not intersect a region beneath the outlet. A light sensor, mounted to the spout, produces a signal indicating whether the beam of light is striking the light sensor. A control circuit responds to the signal by opening a valve that thereby conveys water to the spout.

A sink covering assembly for selectively concealing the contents of a sink includes a screen with a peripheral edge. A plurality of suction cups is coupled to the screen adjacent to the peripheral edge of the screen. Each of the suction cups is configured for engaging a surface adjacent to a sink whereby the screen extends over and covers the sink.

A shower curtain-rod assembly is arranged to have distinct and structurally separate gravitational and torsional load bearing capabilities. The shower curtain may be formed with folded pockets to receive shower curtain stays. The pockets are made by creating overlapping layers of the shower curtain and then ultrasonically welding the overlapping layers together. The shower curtain-rod assembly includes a shower rod having an internal track, a shower ring coupled to a shower curtain stay, and rollers supported on the internal track and coupled to the stay. The internal track generally supports the weight of the shower curtain, the rollers, the stays, and the shower ring. In one embodiment, a channel formed in an outer wall of the shower rod cooperates with a torsional restraint tab extending from an inner surface of the shower ring, which is located over the shower rod.

A trimmer assembly for attachment onto the mower deck of a riding mower. The assembly comprises an L-shaped attachment and a height adjustment assembly. The L-shaped attachment is connected to the trim blade spindle of a riding mower, and comprises a pulley surface and a downwardly extending trim shaft holding surface. A series of pulleys within the L-shaped attachment are connected together by a trimmer drive belt that facilitates the movement of the trimmer shaft when the trim blade spindle rotates. The height adjustment comprises an upstanding shaft with a lever attached thereon. The lever is pivotally attached onto the top of the upstanding shaft, and comprises a foot actuatable handle, whereby the movement of the handle alters the height of the L-shaped attachment. The device further includes a pair of wheels that enable side-to-side movement, and a spring loaded mount that provides protection against damages from impacts.

A drive arrangement for driving a first sickle bar section (42) and a second sickle bar section (36) of a harvesting platform (20) comprises a first gearbox (54) and the second gearbox (74) having an output drivingly connected to a respective first end of a respective sickle bar section (36, 42). Drive trains connect the first gearbox (54) and the second gearbox (74) to an input drive shaft (24). At least one of the drive trains comprises a belt drive. A synchronization transmission (82) is coupled to the second ends of the sickle bar sections (36, 42) and couples them in opposite movement directions.

A corn header has a row unit frame and an auger sweeping ears of corn toward a center of the corn header. A corn row divider assembly has a snout and gatherer hood hingeably coupled to, and aft of, the snout. An aft end of the gatherer hood is located beneath and to the rear of the fore end of the auger in an operational configuration of the divider assembly. The divider assembly further has a four-point hinge assembly coupling the aft end of the gatherer hood to the row unit frame. The four-point hinge assembly is configured to pivot the gatherer hood between the operational configuration and a non-operational configuration in which the gatherer hood is in a raised condition. The four-point hinge assembly moves the aft end of the gatherer hood forward so that the gatherer hood clears the auger when pivoting to the non-operational configuration.

A bump-on-trace (BOT) interconnection in a package and methods of making the BOT interconnection are provided. An embodiment BOT interconnection comprises a landing trace including a distal end, a conductive pillar extending at least to the distal end of the landing trace; and a solder feature electrically coupling the landing trace and the conductive pillar. In an embodiment, the conductive pillar overhangs the end surface of the landing trace. In another embodiment, the landing trace includes one or more recesses for trapping the solder feature after reflow. Therefore, a wetting area available to the solder feature is increased while permitting the bump pitch of the package to remain small.

An organic layer deposition assembly for depositing a deposition material on a substrate includes a deposition source configured to spray the deposition material, a deposition source nozzle arranged in one side of the deposition source and including deposition source nozzles arranged in a first direction, a patterning slit sheet arranged to face the deposition source nozzle and having patterning slits in a second direction that crosses the first direction, and a correction sheet arranged between the deposition source nozzle and the patterning slit sheet and configured to block at least a part of the deposition material sprayed from the deposition source.

Self adjusting and/or locking buckle tongue assemblies for use with occupant restraint systems in vehicles are described herein. In one embodiment, a buckle tongue assembly includes a plate having a tongue portion configured to cooperatively engage a corresponding buckle assembly. The buckle tongue assembly of this embodiment can further include first and second web gripping portions carried by the plate. The second web gripping portion is configured to move relative to the first web gripping portion between a first position in which the web gripping portions are spaced apart to permit movement of a web therebetween, and a second position in which the web gripping portions are engaged or interlocked to clamp the web therebetween.

A wire gripping assembly for securing an electrical box or light fixture to a support. The wire gripping assembly includes a wire gripping device having a body with open channels and a through bore, a clip member having legs for sliding engagement within the channels, a cable having an end connector thereon, and a thumbscrew for adjusting the clip member with respect to the body. The thumbscrew includes a head having an outer circumference with serrations to enable hand tightening and an end with a slot for engagement by a screwdriver or similar tool. The wire gripping assembly eases installation of an electrical device to an overhead support by enabling a two-step connection including initial hand tightening using the serrated outer surface of the thumbscrew and subsequent secure tightening by engaging the slot of the thumbscrew with a screwdriver or similar tool.

A respiratory mask assembly for delivering breathable gas to a patient includes a frame and at least one locking clip. The frame has a main body and a side frame member provided on each lateral side of the main body, at least one of the side frame members including a locking clip receiver assembly. The at least one locking clip has a main body providing a front portion adapted to be removably coupled with the at least one locking clip receiver assembly and a rear portion adapted to be removably coupled to a headgear assembly. The rear portion includes a cross bar that forms an opening through which a strap of the headgear assembly can pass and be removably coupled with the cross bar, and the front portion includes at least one resiliently flexible spring arm that is flexible within the plane of the main body.

A clamp assembly includes a body member having a cable groove formed therein to receive a cable. A keeper is connected to the body member and has a lower surface adapted to engage the cable received in the cable groove. A biasing member is disposed between the keeper and the body member.

A casket shell assembly and method provide for covering an economical or plain casket with a reusable decorative shell. The assembly includes a casket and a shell. The shell has a perimeter wall, an open top, and an open bottom. The shell receives the casket through the open top. A lip coupled to the perimeter wall of the shell supports the casket when the casket is inserted into the shell. A lid is coupled to the perimeter wall selectively covering the open top of the shell when the lid is in a closed position. A plurality of straps is positioned in the shell extending between the shell and the casket. Each of the straps has opposite free ends extendable through the open top of the shell for facilitating lifting of the casket from the shell.

A grave marker assembly that can be removably mounted and secured to a support surface such as a lawn crypt lid. The grave marker assembly has a fastening system that is not exposed to view and yet allows the grave marker to be easily installed and removed. The fastening system includes a channel and interior opening formed on a base member that is adapted to receive a fastener. The fastener in turn is adapted to be inserted into an opening formed on the crypt lid or other support surface. The assembly further includes a multi-function frame disposed along the outer periphery of the memorial marker that can serve as a decorative feature and draining functions.

Disclosed herein are a hygienic handle assembly and related methods for automatically advancing a clean portion of a protective sleeve over a handle after use of the handle by a person. In one embodiment, an exemplary hygienic handle assembly comprises a pair of first magnetic couplers, each having a passage therethrough, and a handle extending between the pair of first magnetic couplers and having a second magnetic coupler at each of its opposing ends. Each of the second magnetic couplers may be configured to be located within at least a portion of a corresponding first magnetic coupler, wherein magnetic fields of the first magnetic coupler repel magnetic fields of the second magnetic couplers received therein such that each second magnetic coupler is magnetically suspended within the corresponding first magnetic coupler.

A lock assembly includes a coupling mechanism connected to a spindle assembly. The coupling mechanism has an outer sleeve having a longitudinal interior opening that extends along a first axis. An operator handle includes a proximal lock core opening, and a distal shaft portion having an axial opening configured to receive the outer sleeve. The distal shaft portion and the outer sleeve are configured to define a through path oriented across the longitudinal interior opening of the outer sleeve. A portion of the through path at the outer sleeve is configured to threadably receive a setscrew to fasten the operator handle to the outer sleeve. A keyed lock core has a tailpiece that is positioned in the longitudinal interior opening of the outer sleeve to obstruct the through path and block access to the setscrew via the through path to prevent unauthorized removal of the operator handle.

A method of height adjusting a hanger bolt with a threaded shaft and side flats in a threaded retainer of a bogey proceeds by rotating the bolt to adjust the axial position and height of the bolt relative to the retainer. A keeper of a lock mechanism housed within a body of the bogey is slid into an engaged position against flats of the bolt in order to prevent further rotation of the bolt relative to the retainer.

A bushing is for supporting a movable cylindrical body within a housing, the housing having a central axis, an inner circumferential surface and an annular groove formed in the surface. The bushing includes a plurality of generally arcuate tube segments disposable within the groove and alignable circumferentially about the housing axis so as to form a generally tubular body configured to slidably support the cylindrical body. Preferably, each tube segment is formed of a generally rigid metallic material.

An adjuster assembly for manually adjusting the position of a brake pad relative to a brake rotor of a disc brake, the assembly comprising: a continuous wear sensor; and a manual rewind apparatus to manually reset the position of the brake pad when replacement thereof is required; the manual rewind apparatus comprising a shaft arranged to extend into a housing of the disc brake; wherein the continuous wear sensor is arranged to be located within the housing of the disc brake and is located proximate to the shaft.

A torque tube for use in a disk brake system in accordance with various embodiments includes a backleg having a reaction plate and a foot extending axially away from the reaction plate. The torque tube also includes a barrel having a tubular structure having an axis and an inner surface configured to receive the foot.

A railcar brake beam assembly including a brake beam formation having a tension member, a compression member and strut, and with the strut defining an axis for the brake beam assembly. First and second brake head assemblies are disposed to opposite lateral sides of the axis, with each brake head assembly being operably carried by the brake beam formation and includes a guide member extending in a direction away from the axis. The first and second brake head assemblies are generally centered laterally relative to the axis of the brake beam assembly. A distal end of the guide member on the first brake head assembly is disposed a different lateral distance from the axis of the brake beam assembly than is a distal end of the guide member on the second brake head assembly to minimize lateral shifting movements while maintaining adequate clearances for permitting reciprocal moments of the brake beam assembly during application of braking forces. A method of designing a brake beam assembly for a railcar is also disclosed.

A friction disk brake system may comprise a plurality of rotor friction disks and a plurality of stator friction disks. At least one of the friction disks may be a split disk friction disk. The split disk friction disk may comprise a first disk half and a second disk half. A carbon foam damping feature may be located between the first disk half and the second disk half.

A heat dissipation structure for a brake pad is provided for being assembled to a caliper device. The caliper device includes a caliper body, and the caliper body has a receiving space. The heat dissipation structure includes: a main body, integrally extruded from aluminum and cut to have an ultimate appearance, including a plate body and a heat dissipation portion integrally extending from the plate body, the plate body for being disposed on the caliper body and at least partially extending into the receiving space, when the main body is assembled to the caliper body, the heat dissipation portion is exposed outside the caliper body. A brake pad assembly is further provided, including a heat dissipation structure as described above, further including a brake pad, the brake pad disposed on a lateral face of the plate body.

The present application provides a scrubber for a gasification system. The scrubber may include a column, an inlet for a flow of dirty syngas, an inlet diffuser system positioned about the inlet, and an outlet for a flow of cleaned syngas.

A pre-processing assembly and method for processing fuel feedstock containing oxygen and hydrocarbons having higher and lower hydrocarbon content for a fuel cell, wherein the pre-processing assembly has a deoxidizing bed for reducing oxygen in the fuel feedstock and a pre-reforming bed for reducing higher hydrocarbon content in the fuel feedstock and wherein the deoxidizing bed and the pre-reforming bed are disposed within a common reaction vessel such that the fuel feedstock first passes through the deoxidizing bed and thereafter through the pre-reforming bed. The pre-reforming assembly may further include a propane processor bed for processing propane and propylene in the fuel feedstock, where the propane processor bed is disposed within the common reaction vessel with the deoxidizing bed and the pre-reforming bed.

A gasification quench chamber is disclosed. The gasification quench chamber includes a reservoir that contains liquid coolant in its lower portion and an exit for the cooled syngas in its upper portion; a dip tube that is configured to introduce a syngas mixture to contact the liquid coolant which produces the cooled syngas; a cooling device configured to further cool the cooled syngas in its upper portion; and a stability device in the lower portion that is configured to mitigate coolant level fluctuation and sloshing. In an embodiment of the quench chamber, the cooling device includes a heat exchanger pipe. A quench chamber and scrubber assembly is also disclosed.

A binding screw for a wire connection assembly comprises a driving section, a threaded section, and a contact section. The contact section has a tapered penetration portion establishing electrical contact with a stranded wire. A length of the penetration portion is at least three-quarters of a diameter of the binding screw in the threaded section.

A force biased spring probe pin assembly includes a barrel member having a barrel wall defining an elongate internal cavity with a lower end and an upper end. The assembly also includes a first plunger member reciprocally mounted in the internal cavity proximate the lower end of the internal cavity. A spring member is positioned in the internal cavity between the plunger member and the second end of the internal cavity. Three or more conductive bearings are positioned in the internal cavity in contact with the first plunger member and the spring member. A force biased spring probe pin assembly includes a barrel member having a barrel wall defining an elongate internal cavity with a lower end and an upper end. The assembly also includes a first plunger member reciprocally mounted in the internal cavity proximate the lower end of the internal cavity and a second plunger member reciprocally mounted in the internal cavity proximate the upper end of the internal cavity. A spring member is positioned in the internal cavity between the first plunger member and the second plunger member. Three or more conductive bearings are positioned in the internal cavity in contact with the first plunger member and the spring member.

A force-biased spring probe pin assembly includes a barrel member having a barrel wall defining an elongate internal cavity with a lower end and an upper end. The assembly also includes a first plunger member reciprocally mounted in the internal cavity proximate the lower end of the internal cavity. A spring member is positioned in the internal cavity between the plunger member and the second end of the internal cavity. At least one cavity formed in the plunger member with a conductive bearing in the cavity in electrical contact with the plunger and with the wall of the barrel member. A force-biased spring probe pin assembly includes a barrel member having a barrel wall defining an elongate internal cavity with a lower end and an upper end. The assembly also includes a first plunger member reciprocally mounted in the internal cavity proximate the lower end of the internal cavity and a second plunger member reciprocally mounted in the internal cavity proximate the upper end of the internal cavity. A spring member is positioned in the internal cavity between the first plunger member and the second plunger member. At least one cavity formed in the first plunger member with a first conductive bearing in the cavity in electrical contact with the first plunger and with the wall of the barrel member and at least one cavity formed in the second plunger member with a second conductive bearing in the cavity in electrical contact with the second plunger and with the wall of the barrel member.

Subsea high voltage connection assembly (10) comprising a first section (100) having a first section body (104) to which a set of first connector(s) (111) is arranged and a second section (200) having second section body (204) to which a set of second connector(s) (211) is arranged. The assembly (10) further has a section body movement arrangement (103, 400, 9, 123) adapted to move one of the section bodies (104, 204) towards and away from the other section body, between a disengaged position and an engaged position. Further, the assembly (10) has a connector movement arrangement (105, 400). Also disclosed are a method and a subsea high voltage wet mate connector assembly.

A plant container assembly, method, and kit include a plant container with a sidewall having first and second sidewall portions, an open top, and an open bottom. A hinge member is on the sidewall between the open top and the open bottom and pivotally connects the first and second sidewall portions for movement between an open position of the plant container, and a closed position of the plant container forming an interior space capable of containing plant growing medium. A closure portion extends along the sidewall between the open top and the open bottom. A plant support cooperatively engages the closure portion and selectively holds the plant container in the closed position. A planar member is configured to be selectively placed within the plant container and supported on a ledge member on each of the first and second sidewall portions to selectively form a bottom closure for the plant container.

An air cap for a spray gun, in particular a paint spray gun, having at least one central opening, which is delimited by a mouth, and two horns, each having at least one inner and one outer horn air duct and one inner and one outer horn air opening. The spacing between the front end of the central opening and an axis which perpendicularly intersects the central axis of the central opening and runs through the centre of an inner horn air opening is between 0.6 mm and 2.6 mm. The spray pattern generated by the air cap has a longer core region and a steeper transition of the layer thickness between the external region and the core region, compared to conventional air caps leading to improvement in coating quality. A nozzle assembly and a spray gun, in particular a paint spray gun, can have an air cap having the above properties.

A hand tool with a handle with an inner cavity, a tool bit holder removably secured within the inner cavity and having a first end adapted for receiving a first reversible tool bit and a second end adapted for receiving a second reversible tool bit, wherein a first reversible tool bit may be removably secured within an inner cavity positioned within the first end of the tool bit holder using a circular spring clip extending around an outer surface of the first end of the tool bit holder, wherein a second reversible tool bit may be removably secured within an inner cavity positioned within the second end of the tool bit holder, wherein the first reversible tool bit has a first punch down blade and a second punch down blade, and wherein the outer diameter of the first end of the tool bit holder is 0.532 inches or less.

A game assembly includes a plurality of cards. Each of the cards has a first side and a second side. The first side has indicia being printed thereon. The indicia comprise an image of biblical characters. A box is provided and the cards are stored within the box. The box has a top side and the top side is open to access an interior of the box. The box has an outer surface and the outer surface has indicia printed thereon. The indicia corresponding to the box comprise words. A lid is removably positioned on the top side such that the lid closes the box.

A game assembly includes a cube that may be manipulated thereby facilitating the cube to be selectively launched at a goal during game play. The cube has a plurality of intersecting sides. The cube may travel in an unpredictable direction when the cube is struck during game play thereby enhancing difficulty of the game play. The cube comprises an inner core and an outer surface. The inner core is comprised of a resiliently compressible material such that the cube may bounce. The outer surface is comprised of a deformable material.

A motor interface assembly configured to be operably coupled to a blower assembly, wherein the motor interface assembly is configured to measure a discharge air temperature, determine a difference between the discharge air temperature and a predetermined temperature, and operate the blower assembly based in part on the difference between the discharge air temperature and a predetermined temperature.

A heat sink includes a cooling module and an installing assembly for fixing the heat sink on a housing. The installing assembly includes a case, a handle rotatablely fixed in the case and a support including a fixing board with blocks and two brackets. The handle is actively connected with the support. The fixing board is fixed on a bottom plate of the case. The handle includes two bulges. The brackets include two slide openings for receiving the bulges. When the heat sink is installed, the handle is rotated to be vertical, the bulges are out of the slide openings, and the blocks are stuck on the housing. When the heat sink is dismantled, the handle is rotated to be horizontal and the bulges are stuck into the slide openings to resist the brackets, thereof the fixing board being uplifted and the blocks being pushed away from the housing.

An electric motor assembly includes an axle having a first end and a second end. A plurality of rotor stages is attached to the axle. The rotor stages each include a set of rotor magnets. Each set has a greater potential magnetic field as the sets are located further from the first end. A plurality of stators is positioned around the rotor stages so that each of the rotor stages is adjacent to and covered by one of the stators to define a plurality of mated pairs. The stators each include a plurality of stator magnets. A stator control, for controlling individual ones of the pairs, is electrically coupled to each of the stators and magnetizes the stator magnets in a controlled fashion with respect to the rotor magnets to urge the rotor magnets in a same direction and rotate the axle.

An adapter frame assembly is provided to receive and support an extra-large 110 mm×110 mm ADF, safety lens and diopter within the viewing window of an existing welding helmet. The adapter frame assembly provides for replacement of the safety lens without removing the ADF and installation or removal of a diopter without removing the safety lens or diopter. The ADF, safety lens and diopter are all easy to install and change.

A musical drum having a hollow shell with at least one opening defined by a circumferential bearing edge, a drumhead, which includes an upper surface consisting of the batter head and a bottom surface, a snare assembly with a plurality of individual wires having opposite end portions, a mounting member affixed to at least one end portion, and means for releasably attaching the snare assembly to the circumferential bearing edge comprising a flexible U-shaped clip in engagement with the circumferential bearing edge in pressure-contact relation. The individual snare wires are disposed in abutment against the bottom surface of the drumhead to cause the wires to vibrate upon the striking of the batter head.