| Patent application number | Description | Published |
|---|
| 20080256995 | Unlock Transmission Mechanism for Escape Door - An unlock transmission mechanism for escape doors is disclosed, including a base, a transmission member, a first drive unit and a second drive unit, wherein the transmission member, the first drive unit and second drive unit are all disposed on the base, and the transmission member is actuated to move relative to the first drive unit and the second drive unit, respectively. In the case that the unlock transmission mechanism is to be installed in an escape door that has a different installation orientation, the transmission member and the first drive unit provided therein have the characteristics of multi-directional changeability, thereby enabling flexible installation of the escape door lock and eliminating the necessity to replace an existing door handle mechanism as encountered in the prior art. | 10-23-2008 |
| 20090008949 | Door Handle Apparatus - The present invention provides a door handle apparatus consisting of a handle, a lock housing, a transmission mechanism, and a locking mechanism. The handle is pivotally engaged with the lock housing. The locking mechanism is engaged with one end of the lock housing and the handle. When the handle is rotated, the locking mechanism makes relative sliding and movement about the handle. The transmission mechanism is engaged with the other end of the lock housing and moves relative to the locking mechanism. The locking mechanism has a burglar free locking piece that prevents the door handle apparatus from being disassembled without being unlocked by a key first. After the door handle is engaged with the transmission mechanism, the door handle is still rotatable and movable via the lock housing. | 01-08-2009 |
| 20100026012 | Press bar mechanism - A press bar mechanism includes a latch bolt slidably attached to a housing, a pressing bar slidably attached to the housing and coupled to the latch bolt, a rod slidably received in the housing and coupled to the latch bolt, a casing disposed in the housing and having a compartment for receiving a spring member and a follower and having a helical groove communicating with the compartment of the casing, a guide pin secured to the follower and engaged in the helical groove of the casing for cushioning the movement of the follower relative to the casing and also for cushioning the pressing bar and for preventing the press bar from generating sounds or noises. | 02-04-2010 |
| 20100251788 | Safety door lock - A door lock includes an actuating lever attached to a housing and engaged with a handle shaft, a rotary member rotatably mounted to the housing and connected to the actuating lever with a slide plate and a rocker arm, a spindle rotatably engaged with the rotary member, a latch member slidably attached to the rotary member and engageable with the spindle, and a follower having an actuating finger for selectively disengaging the latch member from the spindle and for preventing the spindle from being rotated by the rotary member and the actuating lever when the door is locked, and for preventing the connecting mechanism between the dead bolt and the actuating lever from being damaged by the actuating lever brutally or forcedly. | 10-07-2010 |
| 20100259052 | Automatic Hidden Latch Structure - An automatic hidden latch structure includes: a base secured in position to a close side of a door, the base having a positioning plate for positioning and a receiving portion and a block portion disposed at one side of the positioning plate; a transmission mechanism including a lock tongue disposed in and protruding from the receiving portion, a transmission member abutting against the lock tongue, a rotating member driven by the transmission member, and an engaging member engaging with the rotating member and protruding from the receiving portion, a first elastic element insertably engaing the engaging member, and a second elastic element mounted on a joining member of the engaging member and insertably engaging the joining member. Given actuation of the mechanism, a latch post of the automatic hidden latch structure protrudes from the door whenever the lock tongue is pressed upon, thereby locking the door. | 10-14-2010 |
| 20110006549 | Lock device - A lock device includes a casing formed in a housing for rotatably receiving a rotary member which has an actuating finger and which is coupled to a handle with a driving shank, and a spring biasing device attached to the housing and engaged with the actuating finger of the rotary member for biasing the handle back to an original position and for biasing the actuating finger of the rotary member back to an original position when the handle is released, the spring biasing device is locked to the housing with a fastener to disengage the follower from the actuating finger of the rotary member when a spring biasing member is engaged between the handle and the housing to bias the handle back to an original position. | 01-13-2011 |
| 20110049912 | Window or door frame having brace device - A frame includes a seat attached to a lower beam, and an anchor attached to an upper beam and having a pivotal catch tongue, a tubular member has a lower portion detachably engaged with the seat and having an upper latch shaft for engaging with the catch tongue and for detachably locking the latch shaft and the tubular member to the anchor, a follower is slidably attached to the tubular member for disengaging the catch tongue from the latch shaft, a lock device is secured to the tubular member and includes an actuating shank having a rocker arm for moving the follower to disengage the catch tongue from the latch shaft, and for preventing the tubular member from being disengaged from the anchor by unauthorized persons. | 03-03-2011 |
| 20110203326 | Lock device - A lock device includes an actuating lever pivotally engaged in a lock housing for actuating a deadbolt of a latch device, two rotary mechanisms pivotally engaged in the housing and each having a rotary member pivotally engaged in a casing for coupling to an outdoor handle and an indoor handle, and the rotary member of one of the rotary mechanisms is secured to the casing for allowing the rotary member and the casing of the rotary mechanism to be rotated relative to the lock housing with the indoor handle only, and for preventing the outdoor handle from being brutally rotated by the unauthorized persons and for preventing the lock device from being destroyed or damaged by the unauthorized persons. | 08-25-2011 |
