Abstract: A suspension system for a sliding door (15) has an upper support rail (16) from which the door is suspended and a lower guide rail (25) along which the door is guided at a tilt over gaskets (12) that bound the doorway. A spring (40) biases the door (15) to an upright orientation firmly against the gaskets (12) at the door closed position.

Abstract: A panel fastener has a casing with two side walls formed with a boss having an outer annular wall that extends reentrantly from an adjacent planar surface of the casing side wall and an inner annular wall with a planar edge recessed from the adjacent casing side wall surface. A cam has a shaft journaled in the boss inner walls that extends out from the boss inner walls. A hook is mounted in camming engagement with the cam whereby the cam shaft is maintained axially aligned in said bosses by their inner wall edges.

Abstract: A convertible cylinder lock handle comprises a hub, a handle extending from the hub, and a drive shaft extending from the hub along an axis of handle rotation. The hub has a channel sized to receive a lock cylinder and a slot that extends along and spacially communicates with the channel sized to receive a spring loaded lock cylinder bolt. The lock handle also has a bolt lock plate sized to be received in reversible orientations within the slot that has two stops spaced apart a distance to receive and entrap the cylinder bolt therebetween. One of the stops has a ramp for camming engagement with the spring loaded cylinder bolt whereby in one lock plate orientation the bolt is locked out of the lock plate and in its reversed orientation the lock plate receives and entraps the bolt. The handle is particularly suited for use on delivery van type vehicles as it is fully compatible with existing lock cylinders that may be removed with spanner tools without having to disassemble the handle.

Abstract: A pressure relief port has a tubular housing 11 in which a hollow valve body 12 is mounted. An upper poppet valve 23 is operatively mounted to the top of the valve body and a lower poppet valve 25 is operatively mounted to the bottom of the valve body. The interior of the valve body communicates with one end of the tubular housing through the upper poppet valve while the exterior communicates with the other end of the tubular housing through the lower poppet valve.

Abstract: A panel fastener has a hook and cam assembly with a C-shaped leaf spring mounted in a recess in the camming surface of the cam. The recess is formed with a central barrier with opposed ledges on which the spring is mounted. Rotation of the cam causes the spring to frictionally engage the hook and in so doing become compressed and to flex below the recess edges without crimping.

Abstract: A strip curtain system has an elongated track (10) that has a back side (11) with a bottom flange rail (14) and a front side (12) with a bottom flange rail (14) providing a channel 15. The track back side has a ridge (17) extending above at least a portion of the back side bottom flange. The track front side has a channel access port 22 located in front of the back side ridge. A number of curtain strips (30) have a bifurcated hanger (31) mounted about opposite sides their top ends. The bifurcated hangers have a bottom (37) shaped to be slidably supported upon the track rails and a hang support surface (38) for support upon the track back side ridge.

Abstract: A latch for a sliding door of a truck or the like comprises a housing, a latch bar mounted to the housing for pivotal movement and spring means biasing the latch bar towards a latched position. An outboard cam is rotatably mounted to the housing for camming engagement with the latch bar. An outside handle is mounted to the outboard cam. An inboard cam is rotatably mounted to the housing for camming engagement with the latch bar and an inside handle is mounted to the inboard cam. A lock slide is mounted for manual movement into and out of locking engagement with the outboard cam. A mechanism is also included for moving the lock slide when positioned in the locking position out of the locking position in response to pivotal movement of the latch bar.

Abstract: A safety door latch 10 has a base 12 with a shaft 24. A venting disc 30 is rotatably mounted on the base shaft. A lever 50 with a strike locking cam 54 is mounted on the base shaft over the venting disc. Lugs 23, 32 provide for limited relative movements of the locking cam with respect to the venting disc in conjunction with spring bias detenting balls 44.

Abstract: A lock for a refrigerator door (11) has a metallic cylinder lock (22) adapted to be mounted to the outside of the door and a metallic latch (13) adapted to be rotatably and releasably mounted adjacent the inside of the door. The metallic cylinder lock is coupled to the metallic latch by a rod (21) and a non-metallic bolt (17) which is adapted to be rotatably mounted at least partially within the door (11). The bolt (17) has a keyway in which the rod (21) is received.

Abstract: A strip curtain system having an elongated track adapted to be mounted over a doorway and having two spaced apart rails, a plurality of curtain strips and a plurality of hangers. Each curtain strip has a top end portion and a main body portion. The top end portion has at least one hole therethrough and a width less than the width of the main body portions. Each hanger has a male plate with at least one peg and a female plate with at least one hole sized to receive the male plate peg. A strip curtain may be assembled in the doorway by mounting the track thereabove, mounting the hangers to the top end portions of the strips, and sliding the hangers upon the track into abutment with one another with only the main bodies of adjacent strips suspended therefrom overlaying one another beneath the track.

Abstract: A foot treadle for use in opening a sliding door of the type mounted for initial movement in three directional dimensions from its closed position comprises a lever having an axis of rotation. The lever has a leg that depends generally downwardly from the axis and an arm that extends generally laterally from the axis. A pedal is mounted to the arm distally from the axis of rotation. The lever is mounted to a door jamb of a sliding door with the lever leg closely adjacent a lower end of the door for pivotal movement about the lever axis of rotation in pushing and sliding engagement with the door lower end. Upon a person stepping upon the pedal the lever leg applies a force laterally and upwardly against the door lower end thereby urging the door laterally and upwardly out of sealed engagement with the door jamb and floor as the door lower end slides outwardly from the door jamb in sliding contact with the lever leg.

Abstract: A trolley rail system (10) for supporting and guiding a sliding cooler door (14) of a walk-in type cooler. The system has a guide rail (27) having two linear segments (29,30) and two deviation ramp portions (33,34), and an auxiliary rail (38). The system also has a leading trolley (41) and a trailing trolley (42). The leading trolley has a wheel (51) supported upon the guide rail. The trailing trolley has a primary wheel (52) supportable upon the guide rail and an auxiliary wheel (53) supportable upon the auxiliary rail.