Abstract: A toggle latch device translates a first push and release of a button to a locking pin translation from retracted to extended from within a housing. A second push and release of the button reverses the locking pin translation from extended to retracted back within the housing. The latch button remains desirably flush with the housing after each push and release. The translation of the latch button and that of the locking pin is angularly displaced by 90 degrees allowing the toggle latch device to employ a unique lever system which includes a buckling spring combined with a reversing hat which forces the locking pin in each of extension and retraction.

Abstract: The door handle assembly includes a housing which is mounted in the door of a vehicle. A lever handle is pivotally connected to the front side of the housing by a pin, while a pivot plate is pivotally connected to the back side of the housing. The back side of the housing includes a curved channel in which is mounted a compression spring. The pivot plate lies in covering relation to the channel so as to retain or close the spring in the channel. The pivot plate includes an elongated arm which is linked to the door latch. Upon actuation of the handle, the pivot plate 14 is pivoted by a leg of the handle extending through the housing. The pivotal movement of the pivot plate compresses the spring between one end of the channnel and an arm on the pivot plate. The linkage between the pivot plate and one door latch releases the latch when the pivot plate is rotated by actuation of the handle. Upon release of the handle, the compression spring 36 biases the pivot plate to its normal at-rest position.

Abstract: A greaseless door lock for doors on railroad cars which eliminates the need to lubricate the door locks. The greaseless door lock includes a C-shaped bracket having a side wall and spaced apart end walls attached to the side wall wherein the end walls include aligned aperatures for slidably receiving a locking pin. The greaseless door lock includes at least one bushing mounted in each aperature to prevent the locking pin from engaging the end walls. Two semi-clyindrical bushings or one cylindrical bushing may be mounted in each aperature.

Abstract: A push-bar for doors in general, which comprises a bar element provided, at its ends, with couplings for connection to a door; the particularity of said push-bar is the fact that it is provided with a threaded bar which is arranged inside the bar element, each end of said bar element being connected to lever means which are in turn pivoted at one end to the bar element and, at the other end, to a pusher whose rotation as a consequence of a pressure applied to the bar element causes the rotation of a pawl which is adapted to engage the pivot of the lock of the door in order to turn it for opening, an empty space being provided between the bar element and the surface of the door to which the bar element is connected.

Abstract: A push-pull door lock is disclosed. The push-pull door lock comprises a lock case installed within an installation hole of a door. A slider is slidably mounted within the lock case. A latch bolt is connected to the slider through an elastic member. A push member is slidably mounted to a first side of the lock case and operably connected to the slider by a first intermediation assembly so as to slide the slider. A pull member is slidably mounted to a second side of the lock case and operably connected to the slider by a second intermediation assembly so as to slide the slider. The first intermediation assembly comprises a push plate, a first slide projection and a push rod. The second intermediation assembly comprises a pull plate, a second slide projection and a pull rod. The push and pull plates are rotatably mounted around a fixing pin. The first and second slide projections are formed on the slider and are respectively in contact with the push and pull plates.

Abstract: A safety latch for securing doors, windows and the like includes a plunger slidably received within a housing and movable between extended and retracted positions. A first end of the plunger is freely available for engagement with a hole, recess, strikeplate, or the like externally of the housing, and a second end of the plunger within the housing includes a cam member. A retracting member is interconnected with the plunger through the use of an intermediate member located between and connected at its opposite ends to the plunger and the retracting member. Either a first end of the intermediate member or the retracting member includes a cam follower engageable with the cam member included on the plunger. When a force is applied to the retracting member to pull the plunger into the housing from the extended position toward the retracted position, the plunger is freely movable within the housing to the retracted position.

Abstract: An exit bar for securing a door has a housing adapted for mounting to a door. A push pad for receiving a push force is mounted to the housing. A latch extends from the housing to releasably latch the door to which the exit bar is mounted. A link system links the push pad to the latch so that a push force exerted on the push pad releases the latch. An electromagnetic lock disposed in the housing locks the link system to prevent releasing of the latch. The electromagnetic lock employs an electromagnet and a movable armature to lock the link system. The exit bar further delays unlocking the link system for a preestablished delay time after the push pad has been pushed.

Abstract: A multi-controlled security lock includes a slide which can be moved back and forth with respect to frame by at least one of two control devices, such as, a key control device or a remote electric control device. A carriage mounted on lock bolts is movable back and forth with respect to the frame. An irreversible actuating device is located between the carriage and the slide for permitting a movement of the carriage between an open position and a locked position in response to a movement of the slide and for preventing a movement of the carriage between the locked position and the open position in response to a force exerted on the carriage.

Abstract: A drawer for being held in and removable from a housing, particularly an ashtray in a housing, and including an unlocking mechanism normally in engagement with a stop in the housing and unlockable to enable removal of the drawer from the housing. A slide supported outside and below the container is movable toward the rear of the container. The end of the slide is V-shaped, and the underside of one leg of the V engages an upright bolt for moving the bolt down as the slide is moved rearward, which moves the bolt out of position to abut the housing stop. A push element is engaged by the upper side of the slide for being pushed up to press a spring up inside a recess in the bolt as the slide is pushed in. The slide, bolt and push element having cooperating oblique surfaces for accomplishing the respective pushing. In one embodiment, a push button acts directly on the slide. In another embodiment, a push button acts on the bolt through an intermediate rocker, instead of a slide.

Abstract: Central to the invention is a universal, center case sub-assembly from which, by adding components thereto, one may fabricate a rim style center case assembly, or a concealed-vertical style center case assembly, or a surface-vertical style center case assembly, or a combination rim and vertical style center case assembly, for a panic-type exit device. Besides minimizing the number of diverse components and parts required for the fabrication of the aforesaid center case assembly styles, the universal sub-assembly comprises an improved design which offers a marked mechanical/leverage advantage to the trim linkage.

Abstract: A lock for releasably holding closed a fixed structure like a house or building a hingedly mounted closing element like a window guard, gate or the like characterized by a lock bar for being locked in the closed position from a lock housing that is connectable with the fixed structure and has a latch that is inaccessible by an outsider but that will snap into position about the lock bar to hold it trapped yet releases when pushed from inside the building, the push operating a bell crank that effects the release. The latch includes a trapped, slidable release bar biased to snap into engagement but pushable by the bell crank to release engagement. Specific preferred embodiments are also disclosed.

Abstract: A latching device for a security gate of the type used at the entrance of subterranean garages for apartments or condominiums or secured storage rental areas is disclosed which is mechanically actuated by operation of the motor drive system to open the security gate. The latching device effectively prevents the security gate from being forced open, and in one embodiment includes a mechanism for preventing manual disengagement of the latch from attempts to force the gate laterally until the latch disengages. The latching device of the present invention is substantially cheaper than other security gate locking devices, as well as being highly reliable and wear-resistant.

Abstract: A door latch mechanism with a vertically linearly translatable operating member that is manually movable to unlatch a door. The mechanism, which includes a locking assembly, is locked by rotational movement of the operating member. A foil member connects with the operating member centrally and has ends wound into chambers. The foil, movable with the operating member vertically, closes a slot in which the operating member moves. The connection of the operating member with the foil permits rotational movement for locking. A rotational latch cooperates to hold the operating member in its rotated, locked position, against the bias of springs urging unlocking rotational movement of the operating member.

Abstract: A door locking apparatus has a grip bar mounted on the main handle for operating a door locking bolt. The grip bar is movable forward and rearward. A pair of links are located within the handle, facing the grip bar and forming therewith an isoceles triangle, the base of which is the grip bar. The intermediate portion of each link is pivotally attached to the handle. These links are interconnected to each other at their forward end portions, and are connected at their base end portions to the grip bar, for relative movement therebetween. Consequently, the grip bar can be given a parallel motion even when the same is gripped at any portion.

Abstract: In a panic bolt assembly for use on an emergency exit door, a horizontal elongate operating device comprises two elongate bodies hinged together along adjoining horizontal edges. Each body is pivotally mounted on the door about a horizontal axis adjacent the edge of the body remote from the hinged edges. At least one of these pivoted edges is constrained to move vertically with respect to the door to effect engagement or disengagement of a bolt of the door. Pressure imparted to the hinged edges of the device in a direction towards the door effects vertical movement of the pivoted edge or edges to disengage the bolt or bolts.

Abstract: A pair of free linkages are disposed in a door latch housing between the housing, the latch bolt, and the latch bolt actuating buttons. Preferably, each linkage comprises a toggle hinge having first and second sides joined by a pivotable connection in a one piece polypropylene construction. The sides of the hinge taper approaching the pivotable connection so the pivotable connection is substantially thinner than the first and second sides. The taper of the first and second sides differs in alternating fashion across the pivotable connection to form a bearing surface alternately on one side of the pivotable connection and the other. Responsive to the movement of a privacy button to its latched position, movement of one of the actuating buttons is prevented without preventing movement of the other actuating button. Responsive to movement of the other actuating button, the privacy button returns to its unlatched position.

Abstract: A refuse container is disclosed for use in both storage and transportation of accumulated refuse. The container body is an elongated cylindrical member having a rectangular cross section. The container includes a horizontally hinged tailgate having a vertically slidable portion which opens to admit refuse into the container interior. The tailgate lower edge is provided with a latching means which cooperates with cooperating connector means carried by the container frame. An over-center latching mechanism maintains engagement between the latching means and the connector means and includes a latching yoke which prevents inadvertent unlatching of the tailgate. The second end of the container is generally open and has a transverse bulkhead which is slidable between the container ends. As the container is filled, the transverse bulkhead recedes from the tailgate end and provides a controlled resistance against material being compressed in the container.

Abstract: A panic exit actuator and locking mechanism adapted particularly for mounting on a narrow stile door frame with the actuator spanning substantially the full door width and extending between the inner and outer narrow stile frame members, and wherein the lock mechanism is mounted in the outer narrow stile frame member and has a latch bolt supported for movement between latched and unlatched positions, the latch bolt being releasably retained in the latched position by deadlock means and being movable to an unlatched position in response to pressure applied in a door opening direction to a push bar that is movably supported on one or more linkage assemblies having an operating connection with actuating means operable to initially release the deadlock and thereafter move the latch bolt to the unlatched position.