The present invention discloses a novel pet cage door, including a door frame and a switch door capable of rotating relative to the door frame so as to be opened and closed. A locking apparatus is disposed between the switch door and the door frame, and the locking apparatus includes a housing disposed on the switch door. The present invention has a simple structure and requires low costs.

Latch mechanisms adapted to prevent unauthorized displacement of a latch bolt from an extended, locked position to a retracted, unlocked position. The latch mechanisms prevent the failure of a latch bolt of one latch mechanism to return to an extended lock position from interfering with the ability of a latch bolt of an inter-related latch mechanism from being able to return to an extended, locked position. Further embodiments provide a mounting bracket mounted to a door to allow the associated latch mechanism to be indirectly secured to the door. Additionally, the mounting bracket may have a plurality of mounting orifices that allow the mounting bracket to be used with a wide range of latch mechanisms, as well as provide adjustable attachment of the latch mechanism to the mounting bracket.

A door handle set includes a handle assembly having a primary lock and having a handle rotatable about a primary rotational axis. A latch bolt assembly has a latch bolt. The latch bolt assembly is operatively coupled to the handle assembly, wherein a rotation of the handle results in a linear translation of the latch bolt. A supplemental lock has a second axis parallel to, and spaced apart from, the primary rotational axis. The supplemental lock has an actuator that is operable relative to the second axis. The supplemental lock is configured to selectively block the rotation of the handle regardless of the locking state of the primary lock.

A door assembly, particularly for doors of passenger aircraft, includes a door frame, a door having a door body hingedly installed in the door frame, at least one hooking pintle attached to the door frame or an edge of the door body extending along a pintle axis, and at least one door latch connected to an edge of the door body or the door frame, respectively, the door latch having a substantially C-shaped latch body configured to rotate around an axis parallel to the pintle axis of the hooking pintle. The door assembly further includes a bistable latch and hook mechanism configured to catch the door latch in hooking engagement with the hooking pintle and to retain the door latch in a direction perpendicular to the door body in an overcenter position.

Locks for storage containers having closures such as doors, covers or lids are disclosed. The lock is mounted to she closure and is latched in such a manner as to selectively prevent opening or removal of the closure. The latch of the lock can engage a slot in the storage container, a bracket on the storage container, or a strike on the storage container. Alternatively, the latch can engage a mounting bracket on the door or other portion of the door to selectively block movement of a handle for the door. Further, the latch can have a locking device which can selectively block movement of the latch. Movement of the locking device can be selectively controlled by a magnetic key.

A tailgate locking/unlocking system is adapted to lock or unlock a tailgate of a vehicle. The tillage locking/unlocking system includes a rod shaft, a first lock structure, a second lock structure, at least one handle assembly, a first receiver, and a second receiver. The rod shaft is disposed in the tailgate of the vehicle and extended along a width direction thereof. The rod shaft has a first end and a second end opposite to the first end. The first and second lock structures are coupled to the first and second ends. The handle assembly is pivotally coupled to the first or second end of the rod shaft and coupled to the first or second lock structure. The first and the second receivers are disposed on a first lateral side and a second lateral side of a body of the vehicle for engaging with the first and second lock structures.

The invention relates to a hoop lock having a lock body and a hoop which is movable relative to the lock body between an open position and a closed position, wherein a latch is arranged in the lock body that is selectively movable into an unlocked position or into a locked position, with the latch locking the hoop at the lock body when the hoop is in the closed position and the latch is in the locked position. The latch is fastened to a pivot lever pivotable about a pivot axle and is movable between the unlocked position and the locked position by a pivot movement of the pivot lever.

A latch is configured to fix a panel relative to a frame. The latch includes a housing having a longitudinal axis and defining an aperture along the longitudinal axis; a cap mounted within the aperture of the housing for rotation about the longitudinal axis, the cap comprising a drive surface; and a cover coupled to the housing to pivot about a lateral axis, the cover pivotable to be in a closed position in which the cover covers the cap; wherein when the cap is in an unlatched position, the drive surface of the cap is aligned with an engagement surface of the cover and positioned to block the cover from pivoting to the closed position; and wherein when the cap is in a latched position, the drive surface is unaligned with the engagement surface and positioned to permit the cover to pivot to the closed position.

A gate lifter latch having a striker assembly having a striker pin, the striker assembly mounted to the free end of a gate, and a catch lifting assembly mounted to a latch post, the catch lifting assembly having a pivoting lift arm that receives a striker pin, such that during closure of the gate the pivoting lift arm pivots upward and raises the striker pin and free end of the gate. The gate lifter latch may further have a manual or automatic gate latch assembly for securement of the gate in the closed position. The components of the gate lifter latch are preferably structured such that the gate lifter latch may be disassembled and reassembled for use with either a left or right inswing or outswing gate.

Latch mechanisms adapted to prevent unauthorized displacement of a latch bolt from an extended, locked position to a retracted, unlocked position. The latch mechanisms prevent the failure of a latch bolt of one latch mechanism to return to an extended lock position from interfering with the ability of a latch bolt of an inter-related latch mechanism from being able to return to an extended, locked position. Further embodiments provide a mounting bracket mounted to a door to allow the associated latch mechanism to be indirectly secured to the door. Additionally, the mounting bracket may have a plurality of mounting orifices that allow the mounting bracket to be used with a wide range of latch mechanisms, as well as provide adjustable attachment of the latch mechanism to the mounting bracket.