Abstract: Provided is a folding electric bicycle comprising a front frame section; a rear frame section comprising two bent arms individually having one end pivotably coupled to an axle passed rear wheel, and two auxiliary wheels rotatably mounted in open ends of the bent arms; a crossbar comprising a front end and a rear end pivotably coupled to the front and rear frame sections respectively; a latch detachably interconnected the crossbar and the rear frame section; and a down tube interconnected the front and rear frame sections. The rear frame section can either retract toward the front frame section about the unfastened latch for folding or extend from the front frame section about the unfastened latch for extending. The auxiliary wheels are either disposed above the ground when the bicycle is ready or rotatable and contact with the ground when the bicycle is folded for facilitating moving.

Abstract: A latch assembly which is suitable for use with doors, windows and other movable members adapted for movement between one or more positions, the assembly including a latch bolt (12) movable between an extended position and a retracted position and a bolt actuating mechanism (20) operable to cause the movement of the latch bolt, the bolt actuating mechanism including drive means (22) and a control member (30) which operatively interconnects the latch bolt and the drive means, the control member including a latch bolt mounting region which enables the latch bolt to be operatively connected to the control member in selected one of a plurality of mounting positions.

Abstract: A lock for a swinging door comprises a lock casing having a fore-end and at least a first side wall. A first bolt is spring-loaded for engagement with a stationary engagement member of a door case or the like and is movable between a locking position in which it does not extend beyond the fore-end, and an open position, in which it is retracted into the lock casing. The lock casing has an opening in its fore-end and its first side wall, said opening enabling engagement between the stationary engagement member and the first bolt in its locking position.

Abstract: A slide latch assembly (10) includes an elongated housing (18) that slidably receives a latch pawl (36) with a leaf spring (42) having a pair of legs (44) that bias the latch pawl toward a latched position. The construction of the housing (18) and the latch pawl (36) permit the latch assembly to have a relatively thin construction.

Abstract: A device for restraining movement of a door which includes a housing, a foot and pedal pivotally mounted at least partially within the housing, and a first cog portion on the foot and a second cog portion on the pedal. The device is arranged such that the first and second cog portions are engaged whereby pivoting the pedal causes the entire foot to rotate between a non-restraint position where the foot is not in contact with the ground, and a restraint position where the foot is in contact with the ground.

Abstract: A lock for a swinging door comprises a lock casing having a fore-end and at least a first side wall. A first bolt is spring-loaded for engagement with a stationary engagement member of a door case or the like and is movable between a locking position in which it does not extend beyond the fore-end, and an open position, in which it is retracted into the lock casing. The lock casing has an opening in its fore-end and its first side wall, said opening enabling engagement between the stationary engagement member and the first bolt in its locking position.

Abstract: A latch assembly includes a main body, a latch, a biasing spring and a handle. The latch is disposed within a cavity in the main body and is biased in an upward direction by the spring. The handle is hingedly attached to the main body and interfaces with the latch. The handle is also biased by the spring. The biasing force of the spring on the handle causes the handle to be flush with surrounding interior panels. The handle can be caused to pivot by an operator thus causing downward motion of the latch and enabling the door to be freely opened.

Abstract: A locking mechanism (10) is produced for holding a sliding door in the open position and has a Bowden cable (22) which acts on its locking element (20), a moving-carriage support (14) and a moving carriage (18), which move relative to one another during the closing of the door. In order to disengage the door handles from the locking mechanism when the sliding door is closed and therefore in order to reduce the actuating forces for unlocking the door lock, it is proposed that the moving-carriage support (14), during the closing movement, shifts a driver (34) which is guided on the moving carriage (14) and carries along the locking element (20) in the direction of its unlocking position. By this means, the Bowden cable (22) is moved in its actuating direction, thereby enabling the door handles to be disengaged.

Abstract: A door comprising a panel member having a first side and a second side and an opening therebetween; a hinge disposed adjacent to said opening; a control module; said control module hingedly attached to said panel by said hinge; said control module includes an electronic unit which has a first side; said control module being pivotable on said hinge between a first position wherein said electronic unit first side is visible through said opening from said panel first side and a second position where said electronic unit first side is visible from said panel second side.

Abstract: A muzzle door latch, or attachment mechanism, incorporates spring-loaded plungers acting within concave surfaces to provide additional resistance to vibration. The door, or cap, has an elastomeric seal about its outer circumference, which fits snugly within the muzzle. Diametrically opposed guides are attached to the outer side of the cap and extend radially past the outer edge of the muzzle. A plate is attached to the exterior of the muzzle, corresponding to each guide, and each plate extends slightly beyond the end of the muzzle. A roller on each guide engages the outer surface of the plate when the cap is positioned within the muzzle. The plates have a concave indentation on their inner surface, and a spring-loaded plunger on each guide is biased against the concave surface.

Abstract: A door latching mechanism includes a slide housed within a frame adapted for sliding motion of the slide within the frame and a spindle rotatably mounted to the frame and adapted to move the slide between a retracted and an extended position. A void is defined between an exterior surface of the frame and an interior surface of a cover housing the frame and the slide. An insert includes wings, which extend into the void and are positioned on opposite sides of the slide from each other.

Abstract: A safety container incorporates a slidable locking pin with an integral but separately lockable locking tab. The locking pin is internally biased by an integral S-spring which, in cooperation with the lid on the container, urges the pin to slide in a slideway in the lid of the container. The locking pin may be locked into a closed position, however, by rotation of the locking tab into a flexed position. In this position, the locking tab cannot slide within a mating slot in the hinge lid and thus the locking pin cannot slide in the slideway in the lid. Alternatively, the locking tab may be rotated into a non-flexed position in which the locking tab can be urged to penetrate the mating slot in the lid and allow the locking pin to slide in the slideway in the lid. By use of the locking pin, the safety container can be set to require the user to engage in at least distinct hand motions in order to open the container.

Abstract: A mortise lockset incorporates an electrically actuated clutch within the lock case. The clutch selectively engages one latch operator to permit access through a door equipped with the lockset. The lockset further includes a key rotatable cam for retracting the latch. The lockset includes a lock bar that permits retraction of the latch by means external to the lockset. An extended throw deadbolt-like latch is held in a retracted position by an auxiliary latch and hook until released by retraction of the auxiliary latch. The latch incorporates a recessed roller in the projected end of the latch to facilitate latch deployment.

Abstract: A locking device is adapted for locking a disk drive module inside a computer housing. The computer housing confines an open-ended receiving space that receives slidably and removably the disk drive module therein. The computer housing has a bottom wall and an upright side wall that extends upwardly from the bottom wall and that borders the receiving space. The side wall is formed with a latch hole for access to the receiving space. The disk drive module has a casing that is formed a latch groove. The locking device includes a latch member, a resilient metal wire strip and a positioning unit. The latch member has a locking end portion and a connecting end portion, is adapted to be disposed on top of the bottom wall, and is movable between a locking position, where the locking end portion is adapted to extend through the latch hole and into the latch groove, and a releasing position, where the locking end portion is extracted from the latch groove.

Abstract: A housing assembly (100) includes a housing (101) having a first opening (105), a door (114) coupled to the housing at the first opening, wherein the door is slidable between opened and closed positions with the housing, a first latch (110) coupled to the door, the first latch having a first detent (112), a second latch (104) coupled to the housing, the second latch having an aperture (106) for engaging with the first detent of the first latch in the closed position, and a button (108) coupled to the housing and coupled to the second latch, wherein depression of the button disengages the first and second latches from each other, thereby permitting the door to slide to the opened position. The housing assembly further includes a selective call receiver (200) for receiving messages from a radio communication system.

Abstract: A computer enclosure locking mechanism. A bracket is disposed near the edge of a first enclosure panel. The bracket includes a latchpin retaining surface and a standoff member. The first panel includes a first latchpin clearance hole. The standoff member includes a lock bar clearance hole for receiving the lockbar of a padlock or other locking device. A retractable latchpin having a longitudinal member and a head is provided. A spring is disposed coaxially around the longitudinal member. A second enclosure panel includes a second latchpin clearance hole that aligns with the first latchpin clearance hole when the first and second panels are brought together at a seam. When the latchpin is retracted, the head rests against the latchpin retaining surface and the longitudinal member extends through the first clearance hole but not through the second clearance hole, thereby enabling the first and second panels to be separated or brought together.

Abstract: A mechanism for selectively securing a cover to a flange of a pressure vessel. The cover and flange each have openings that are aligned when the cover is in position facing the flange. The mechanism includes an anchor plate having a hole therethrough. A piston is slidable in a direction normal to the cover in alignment with the opening therethrough. A stud extends from to the piston with a stud head remote from the piston. The stud head fits through the opening of the closer of the cover and flange and through a wider portion of the anchor plate hole, and is positioned opposite the flange and cover from the piston when the cover is positioned over the flange. The stud head does not fit through a narrower portion of the anchor plate hole. A resilient member biases the piston away from the cover. A selectively activated actuator overcomes the resilient member and forces the stud head away from the flange and the anchor plate.

Abstract: A vacuum actuated mechanical latch is attachable to a hermetically sealable container. The latch is attached, formed, or otherwise integral with the door of the container. The latch is easily engaged and disengaged by processing equipment. Also, the latch is designed to minimize the amount of abraded particulate and further isolate any particulate generated. Further, when the door is latched to the container, the latch is not easily overcome by jarring or bumping. The lead-in surface of the latch is angled to minimize friction when the latch is forced into a first locking position.

Abstract: A push pad releasable exit device with continuous deadlocking for mounting near a door edge for engaging a lock strike includes a housing having first and second sidewalls upon which are mounted two end walls and an internal wall parallel to the end walls, each of the end walls and the internal wall having a hole, the holes being aligned on a common axis, the first sidewall having a wedge stop projecting inwardly therefrom toward the axis of the holes in the end walls and the internal wall; a tapered latch bolt mounted on a cylindrical shaft the shaft extending through the holes and having a provision for urging the latch bolt toward the lock strike; a wedge plate having a hole providing clearance around the shaft and aligned with the holes in the end walls, having a tab pivotally resting in a slot of the second wall, and having a corner distal from the tab resting against the wedge stop when the door is in an open position; a provision for sensing when the door is in a closed position and for flipping the we

Abstract: A push pad releasable exit device with continuous deadlocking for mounting near a door edge for engaging a lock strike includes a housing having first and second sidewalls upon which are mounted two end walls and an internal wall parallel to the end walls, each of the end walls and the internal wall having a hole, the holes being aligned on a common axis, the first sidewall having a wedge stop projecting inwardly therefrom toward the axis of the holes in the end walls and the internal wall; a tapered latch bolt mounted on a cylindrical shaft, the shaft extending through the holes and having a provision for urging the latch bolt toward the lock strike; a wedge plate having a hole providing clearance around the shaft and aligned with the holes in the end walls, having a tab pivotally resting in a slot of the second wall, and having a corner distal from the tab resting against the wedge stop when the door is in an open position; a provision for sensing when the door is in a closed position and for flipping the w

Abstract: A door stopping device comprises a bottom or base element, which when in use, rests stably on a floor and a cover or top element connected to the aforesaid base element and sliding coaxially up and down over it along a substantially vertical axis; the said top element has an integral flat ring protruding at right angles from its bottom edge and designed to engage the bottom edge of a door; elastic means apply a force in an upward direction between the base element and the top element which tends to draw the two elements apart and which, when an external force is applied along the same axis but in the direction opposite to that applied by the elastic means, defines at least one limit position of minimum extension where the said base element is completely covered by the said top element in such a way as to enable the said flat ring to be inserted under the bottom edge of the door; permanent latching means are provided to establish a reciprocal link between the aforesaid base and top elements and defining the po

Abstract: A deadbolt extender which automatically extends a deadbolt when the door upon which it is mounted is closed. The deadbolt extender comprises a tongue body reciprocating within a tongue body track, a deadbolt reciprocating within a deadbolt track, and a release mechanism releasably engaged with the tongue body. A tongue attached to the tongue body retractably engages a spring-loaded deadbolt latch. The tongue body track diverges from the deadbolt track, so that when the tongue body is at an extension end of the tongue body track, the tongue is retracted out of the way, and the deadbolt may be operated conventionally, using a conventional deadbolt drive mechanism. The deadbolt extender will not extend the deadbolt automatically upon door closure unless first cocked, thereby eliminating unwanted "lockouts".

Abstract: A fuel filler door release system for a vehicle, includes an outer casing having a longitudinal opening with first and second opposing open ends, and a piston having a piston portion, an insert groove and first and second inner end surfaces. A pivotal lever is also provided having a first arm inserted within the insert groove and a second arm selectively actuable by a release cable. A spring member biases the piston and a switch lever, so that the piston portion is extended through the second end of the longitudinal opening unless the first arm acts on the first inner end surface.

Abstract: A push pad releasable exit device with continuous deadlocking for mounting near a door edge for engaging a lock strike includes a housing having first and second sidewalls upon which are mounted two end walls and an internal wall parallel to the end walls, each of the end walls and the internal wall having a hole, the holes being aligned on a common axis, the first sidewall having a wedge stop projecting inwardly therefrom toward the axis of the holes in the end walls and the internal wall; a tapered latch bolt mounted on a cylindrical shaft, the shaft extending through the holes and having a provision for urging the latch bolt toward the lock strike; a wedge plate having a hole providing clearance around the shaft and aligned with the holes in the end walls, having a tab pivotally resting in a slot of the second wall, and having a corner distal from the tab resting against the wedge stop when the door is in an open position; a provision for sensing when the door is in a closed position and for flipping the w

Abstract: A safety draw-latch which can be opened by normal adults but not by people with less coordination such as children or mental defectives. It differs from normal latches in that a complex set of actions must be carried out in one continous movement.

Abstract: A fire-retardant pivoted door assembly with fire activated latching members includes a metal door frame having jambs and a header in which a fire-retardant door is mounted by a hinge assembly with a lower temperature resistance that the door and frame. Fire actuated latch bolt assemblies in the door are spaced vertically along the hinge side of the door, and include a housing providing an elongated cavity opening at the edge of the door. A latch bolt is slidably seated in the cavity and is biased towards the opening of the cavity. A fusible closure extends across the opening of the cavity and retains the latch bolt against the biasing pressure, and the hinge jamb has a spaced recess formed therein to receive the latch bolt upon melting of the fusible closure.

Abstract: A tilting window sash having a lock pin intermediate the ends of the vertical stiles which supports perpendicular loads to prevent inward bowing of the sash and which automatically releases upon normal lifting and/or tilting of the sash.

Abstract: A flush mountable door lock includes a recessed body member, a lock bolt slidably mounted on the body member, and a paddle-shaped operating handle for moving the bolt. The handle is movable between nested and projected positions. A bolt actuator extends from the handle into a receiving formation provided on the bolt for drivingly interconnecting the handle and the bolt to effect retracting and extending movements of the bolt when the handle is moved toward its projected and retracted positions. A torsion coil spring is interposed between the body member and the handle, and serves the several functions of biasing the handle toward its nested position, maintaining play-free engagement between the handle and the body member when the handle is nested, and maintaining a play-free driving connection between the handle and the bolt when the handle is projected.

Abstract: Latch means (19) for locking a cover (10,110) on a meter box (11,111) against unauthorized opening and having a latch bar (32) slidably mounted on the inner surface of the cover behind an access opening (18,118) therein, said latch bar extending behind a flange (21,121) on the box when the cover is closed. The latch bar (32) has a cam portion 34 to ride over the flange (21,121) during closing of the cover and has an indentation forming a shoulder (38) adapted to be engaged by an implement (40) inserted through access opening (18,118) to raise the latch bar (32) and open the cover (10,110).

Abstract: A door control comprising a heat-actuated door latch and a combination door-closing-arm holder and release. An optional smoke detector is located within a holder-release housing. During normal conditions, the door-closing arm is set at a hold-open angle free of the door to permit an easy door swing. In response to an emergency or smoke condition, the closing arm is released to pick up and close the door. In the event of excessive heat, the door is latched in response to the separation of fusible link segments. Heat from the side of the door opposite the latch housing is conducted through the door by a heat conducting rod.

Abstract: Mechanism for securing a door in open or closed position comprises a casing which is secured to the inside of the door near the bottom and has vertically aligned openings to receive a vertically movable hollow cylinder. The cylinder is biased upwardly by a helical spring in the casing, upward movement of the cylinder being limited by a plate which is affixed to the cylinder and engageable with the upper end wall of the casing. A plunger which is reciprocable in the cylinder is biased downwardly relative to the cylinder and is held in an upper or retracted position by a latch provided at the upper end of the cylinder. When the latch is released, the plunger is forced downwardly by its spring into engagement with the floor or with a socket set in the floor. When the cylinder is pushed downwardly far enough for the latch to engage the plunger and is then released, the cylinder and plunger are moved to their upper positions by the spring acting on the cylinder.

Abstract: The main housing is an exact size for insertion in the conventional door, is adjustable for door thickness and allows conventional hole cutting and preparation. This housing is cylindrical, and has two sides with working parts built in one side, each side having an external or internal threading to be screwed together. Only one screw is used in installation to connect the two inside and outside sliding recessed plates together.The latch is retracted by means of a wheel and rod following a cam track, aided by a spring positioned in the latch housing. The track is V-shaped and in the latch housing wall, the wheel and rod traveling down one side thereof after a pull is enacted, or the other side thereof after a push is enacted. The wheel is connected to the latch bolt by the rod.From the opposite end of the latch the latch bolt is inserted into the hollow pinion housed in the main housing to react to the push and pull.