Abstract: Device for locking a cowl with double security, comprising panel securing means, constituted by a plate integral with the panel and having a conical hole, as well as by a conical stop integral with the fixed structure and which enters the plate hole when the panel is in the closed position. Locking means are constituted by a locking bush or flange integral with the fixed structure, a support mounted on the panel, a bolt mounted in pivotable manner on the support and able to engage in the locking bush when the panel is in the closed position. Elastic means draw the bolt towards the disengaged position of the locking bush. A pawl mounted on the support locks the bolt in the engaged position.

Abstract: A door latch (24) suitable for latching a door (20) to a door frame (22). The door latch (24), in a preferred embodiment, has an adjustable nose bolt (36); is "panic unlatchable"; and can be operated by axial or rotational spindle forces supplied by, for example, a push button (48) or a door knob (120). The latch apparatus (24) preferably includes an adjustable nose bolt (36) which is adjustable in and out relative to the spindle (50). A trunnion (58) interposed between the inside handle (46) and the nose bolt (36) allows for relative adjustment of the nose bolt (36) with respect to the handle (46). In addition, a preferred embodiment of the latch apparatus (24) includes a lock lever (100) which forms a recess (108) suitable for capturing a spindle ear (110) to substantially prevent the spindle from operating the latch apparatus (24) to move the nose bolt (36) from a first position to a second position.

Abstract: A lock for operation by a magnetic key has some locking elements which are moved circumferentially from locking to releasing positions by the key and further locking elements which are moved axially by the key from locking to releasing positions.

Abstract: A child proof safety latch for a cabinet door or drawer. The safety latch includes a base plate receivable on the door, with a hook extending from the base plate to engage the cabinet. A holding plate is provided to locate the base plate, and the holding plate and base plate have teeth for ratchet adjustment of the base plate. A screw passes through the holding plate and the base plate to secure the latch to the door, and the latch is rotatable to place the hook in a position so the hook will not engage the cabinet. The latch therefore has an operable position and an inoperable position.

Abstract: A locking key, designed to preserve an indication of the lock-shifting (opening or closing) operation last performed, has a shank with an extension shaft rotatably received in an adjoining head, the relative rotation of the shank and the head being limited to 90.degree. or 180.degree. by a retaining pin in the head coacting with a part-circular recess on the shaft. The pin and the recess also serve to hold the head in a fixed axial position with reference to the shank. A spring-loaded detent in the shaft or elsewhere inside the head serves to index the two key portions in either of their limiting relative positions.

Abstract: A casket lock for a gas utility valve having inlet and outlet conduits includes a pair of mating casket sections releasably connected together along a hinge about which the sections are movable between open and closed positions. In the closed position the casket sections cooperate to define a casket containing the valve and the conduit connections thereto. The casket sections are releasably retained in closed position by a fastener contained within the casket. A tubular lock secured in locked position to the casket prevents access to the fastener.

Abstract: An auxiliary locking device for a sliding door is disclosed, comprising a blocking member having an upward-opening longitudinal channel near its inner side for receiving the inner frame member of the sliding door channel. At least one clamping screw protrudes through threaded hole(s) in the inner side of the blocking member into the longitudinal channel, for clamping the blocking member to the inner frame member of the sliding door with the outer portion of the blocking member protruding into the sliding door channel for blocking sliding of the sliding door, thereby preventing opening of the door past the blocking member location. A rod projects from the outer portion of the blocking member for positioning along the sliding door channel above the sliding door when the device is installed, for thereby preventing the sliding door from being lifted out of its channel for removal. The outer portion of the blocking member is provided with an upward-opening channel, and the rod is L-shaped.

Abstract: A lock device for a hinged cargo door of a truck trailer has a housing with a vertically extended groove in one side wall for receiving the rotatable cargo door lock bar. A transversely extended lock pin in the housing is transversely movable through an opening in the same side wall for insertion into a registered hole in the cargo door lock bar in the locked position thereof. Transverse movement of the lock pin is controlled by a simple lock mechanism including a key operated lock shaft having a rocker arm rotatable therewith and having a free end connected to the lock pin for transverse movement of the lock pin in response to rotation of the lock shaft.

Abstract: A door release mechanism (10) for a door (24) having a latch bolt (22) is provided. The door release mechanism (10) includes a strike block (12) adapted to receive the latch bolt (22). A ramped surface (26) is provided within the strike block (12) for urging the latch bolt (22) into the door (24) to thereby open the door (24). Structure (30, 42, 48) is further provided within strike block (12) for preventing the latch bolt (22) from being withdrawn within the door (24) for maintaining the door (24) closed.

Abstract: A cylinder lock having a plurality of plate-like tumblers, each of which is carried by the lock barrel to rotate therewith and each being adapted to locate within a respective locking recess provided in the lock body and thereby hold the barrel against rotation relative to the body. The tumbler plates are movable laterally relative to the barrel axis so as to be capable of removal from their respective locking recesses and thereby free the barrel for rotation. A locking pin interconnects the tumbler plates so that they move in unison between their barrel locking and release positions, and a plurality of rotatable discs interacts with that pin to control its ability to move radially inwards and thereby free the tumbler plates from their locking recesses. Each disc has a peripheral notch which must be located adjacent the locking pin to allow the aforementioned radial inward movement.

Abstract: A door latch is provided for the access door of an appliance. The door latch apparatus includes bracketry for mounting at least one switch and actuating levers. The movable access door includes a catch which is engageable with one of the actuating levers as the access door is closed for sensing if the access door is in a lockable posture. Another actuating lever is pivotally operated by a solenoid actuator under control of a microcontroller-based controller to position one end of the lever into locking engagement with the access door catch and to actuate a switch for providing a signal to the controller that the access door is closed and locked.

Abstract: A child proof safety latch for a cabinet door or drawer. The safety latch includes a U-shaped mounting bracket that can be slipped over the edge of the door or drawer without screws or other fasteners. A hook assembly engages the mounting bracket with ratchet teeth so the hook member can be moved into locking position after the safety latch is in place on the closure. The hook member is carried on a base plate, and the base plate may have a knob to keep the hook assembly aligned for easy motion.

Abstract: A locking device for a door. The device includes at least one locking element movably mounted on the door. The door is locked by extending each locking element along one diagonal line of the door until the outer edge of the element enters into a recess in adjacent sides of the door frame. The door is unlocked by retracting each locking element along the diagonal line to the point where the outer edge of the element has exited from the recess and the inner edge is resting on the other diagonal line of the door.

Abstract: A sash lock for a casement window having a case with two sections of different height and with the lower level section having a top wall with a circular segment opening with a curved edge which receives a generally circular part of a rotatable operating member positioned in the opening and extending under a vertical wall interconnecting the two case sections of different height. The rotatable operating member has a curved edge of the same curvature as the curved edge of the case top wall opening as well as a peripheral flange underlying the curved edge of the top wall opening whereby in all rotative positions of the planar operating member the opening is effectively sealed.

Abstract: A slide door locking device for vehicles during feeding of fuel to a fuel tank positioned near a slide door, wherein a stopper lever is so pivotally mounted inside a panel of a body, the panel defining the rear end of a door opening, that the front end of the stopper lever may project into the door opening beyond the front end of the panel and engage with a stop member attached to the slide door, and an actuating lever is pivotally disposed to the panel, projecting into a hollow formed in the panel, for a fuel supply inlet, and is coupled to the rear end of the stopper lever via a link member. When the actuating lever is operated during feeding of fuel to a fuel tank, the front end of the stopper lever engages with the stop member of the slide door to prevent it from opening when it is opened.

Abstract: In a window opener, for instance for automotive vehicles, consisting of a toggle lever joint (1) which is mounted for movement on both sides and has a toggle lever joint (2) as well as levers (3, 4), with a detent mechanism having a detent disk which is mounted for axial displacement and can be disengaged against spring pressure and has detent elements distributed on its circumference, a high holding force of the detent mechanism (7) and nevertheless actuation of the window opener without great application of force or demands on the concentration of the user as well as considerable protection from injury are obtained by a grip which receives the detent mechanism (7) and consists of two grip arms (8, 9) protruding on both sides from one of the levers in the direction of the axis of the toggle joint (2), as well as a push button (11) arranged in one of the grip arms for the disengagement of the detent disk (15); two axially displaceably mounted detent disks (15, 15') which are disengageable against the same spr

Abstract: The combination lock is one wherein movable members of the combination mechanism are set in decoding position by a key in the form of a rotatable shaft with a head at one end serving as a handle. Rotation of the key to proper decoding position is determined by shifting an index mark on the key relative to selected units of a set of letters or numerals on the lock housing. The combination mechanism makes use of a multiple number of pairs of discs concealed in the housing which must be successively set in proper decoding position, one disc relative to the other, to release a lock operating plug. In proper decoding position a slide bar, which normally blocks rotation of the lock operating plug, is shifted by key action into openings provided in the discs and out of blocking engagement with the plug, in which position the plug is free for rotation by the key.

Abstract: A vehicle door locking system uses a simple latch mechanism (10) without internal locking means connected to an external door handle (28) through a collapsible bellows (32). A solenoid controlled valve (44), when open, vents the bellows to atmosphere, allowing the bellows to collapse and transmit no movement from the door handle to the latch mechanism or, when closed, presents collapse of the bellows, which then transmits movement of the door handle to the latch mechanism.

Abstract: A first push of an engaging piece moves a projecting portion provided on a case along a one-way passage loop provided on one face of a cam plate while simultaneously moving the cam plate transversely, guiding the projecting portion into an engaging portion provided in said passage, locking the device. Pushing the engaging piece a second time disengages the projecting portion from the engaging portion and moves the cam plate transversely back to its original position, unlocking the device.

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.