A door handle assembly for use with a door that includes an actuator plate configured for activating a door latch assembly and a door handle having a working end pivotally connected to the actuator plate and a free end opposite of the working end configured for manipulation by an operator, where the door handle freely pivots between a up position and down position relative to the actuator plate and only activates the latch assembly in the down position.

A door handle assembly for use with a door that includes an actuator plate configured for activating a door latch assembly and a door handle having a working end pivotally connected to the actuator plate and a free end opposite of the working end configured for manipulation by an operator, where the door handle freely pivots between a up position and down position relative to the actuator plate and only activates the latch assembly in the down position.

In one embodiment, an electronically controlled hatch system for safe ingress, egress, hazard detection, and methods thereof are provided to reduce or eliminate hazards to personnel, including protection of people above and below a scuttle hatch, access port, skylight or elevated deck. Said hatch system reduces the risk of falls while ascending or descending a ladder through an access port. In certain embodiments, severe weather, hazard, security, and other safety information are detected and transmitted to a central control unit for processing and regulating the opening and closing of a hatch covering the access port and/or raising and lowering a safety railing system based on said information and/or user input. Said hatch system may include an actuator and guides for automatically locking/unlocking and opening/closing a hatch, an actuator and guides for automatically raising/lowering a railing system, safety monitoring detectors/apparatuses, and a centralized controller.

In one embodiment, an electronically controlled hatch system for safe ingress, egress, hazard detection, and methods thereof are provided to reduce or eliminate hazards to personnel, including protection of people above and below a scuttle hatch, access port, skylight or elevated deck. Said hatch system reduces the risk of falls while ascending or descending a ladder through an access port. In certain embodiments, severe weather, hazard, security, and other safety information are detected and transmitted to a central control unit for processing and regulating the opening and closing of a hatch covering the access port and/or raising and lowering a safety railing system based on said information and/or user input. Said hatch system may include an actuator and guides for automatically locking/unlocking and opening/closing a hatch, an actuator and guides for automatically raising/lowering a railing system, safety monitoring detectors/apparatuses, and a centralized controller.

A push-pull passage door lock comprising at least one handle, at least one lever, at least one rotating block, a slipping block, a latch bolt and a reset device for resetting the latch bolt. The lever, rotating block and slipping block are located inside the housing. The lever and rotating block are hinged to the housing. The rotating block comprises a rotation portion and a touch portion located at the two sides of an articulated shaft of the rotating block. One end of the lever is connected to the handle and the other end is adjacent the rotation portion. One end of the slipping block is connected to the latch bolt and the other end is adjacent the touch portion. The lever rotates the rotation portion of the rotating block, whereby the touch portion of the rotating block pushes up the slipping block and thereby retracts the latch bolt.

A push-pull passage door lock comprising at least one handle, at least one lever, at least one rotating block, a slipping block, a latch bolt and a reset device for resetting the latch bolt. The lever, rotating block and slipping block are located inside the housing. The lever and rotating block are hinged to the housing. The rotating block comprises a rotation portion and a touch portion located at the two sides of an articulated shaft of the rotating block. One end of the lever is connected to the handle and the other end is adjacent the rotation portion. One end of the slipping block is connected to the latch bolt and the other end is adjacent the touch portion. The lever rotates the rotation portion of the rotating block, whereby the touch portion of the rotating block pushes up the slipping block and thereby retracts the latch bolt.

A latch and method for a double sash tilt window includes a locking mechanism and a rack having proximal and distal ends. The proximal end of the rack is connected to the locking mechanism while the distal end of the rack is affixed to a slide bolt. The latch also includes a cam and a gear, the cam positioned on the gear and the gear enmeshed with the rack so that rotating the gear operates the slide bolt which prevents the window from tilting.

A latch and method for a double sash tilt window includes a locking mechanism and a rack having proximal and distal ends. The proximal end of the rack is connected to the locking mechanism while the distal end of the rack is affixed to a slide bolt. The latch also includes a cam and a gear, the cam positioned on the gear and the gear enmeshed with the rack so that rotating the gear operates the slide bolt which prevents the window from tilting.

A handle structure (100) includes a shell (102), a handle (200), and a sliding member (300). An aperture (104) is provided on the shell (102). One end of the handle (200) pivots to the shell (102), and the handle (200) includes a pressing portion (210). The sliding member (300) is installed on the shell (102) corresponding to the handle (200). The sliding member (300) includes a hooking portion (310) penetrating the aperture (104) and a pressing area (302) pressed by the pressing portion (210) to move the hooking portion (310) from a first position (S) to a second position (E). By this arrangement, a case body can be easily pulled out and locked.

A handle structure (100) includes a shell (102), a handle (200), and a sliding member (300). An aperture (104) is provided on the shell (102). One end of the handle (200) pivots to the shell (102), and the handle (200) includes a pressing portion (210). The sliding member (300) is installed on the shell (102) corresponding to the handle (200). The sliding member (300) includes a hooking portion (310) penetrating the aperture (104) and a pressing area (302) pressed by the pressing portion (210) to move the hooking portion (310) from a first position (S) to a second position (E). By this arrangement, a case body can be easily pulled out and locked.