| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 070092000 | Emergency exit | 10 |
| 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 |
| 20090139283 | HIDDEN LOCK LOCKED TO AN INNER SIDE OF A DOORPLATE - A hidden lock locked to an inner side of a doorplate comprises a top seat assembly; a top rod; the top seat assembly being assembled to the top rod; a linking rod installed to a lower side of the top rod; a lower rod; a lower head; a top seat assembly; a resisting unit. The connecting shaft having a groove, plurality of slots, a plurality of holes, an upper engaging tube and a lower engaging tube. A bent stop is extended from the resisting unit. When a top rod reduces inwards, the stop will resist against a neck of the top rod to prevent a lower head to contact the ground. A pin device is installed for retaining the lock in high temperature. | 06-04-2009 |
| 20090183538 | FIREPROOF DOOR LOCK - An fireproof door lock comprises a handle seat frame being a U shape frame; a press unit installed in the U shape frame of the handle seat frame; the press unit having a driven mechanism; the driven mechanism including a driven unit; a plurality of buckling units, an elastic unit, at least one vibration reduction element, at least one driving bodies, a bottom plate and a pin unit; a press element having an L shape and being attached to the driving body by using a plurality of studs passing through a connecting unit, the press element and a driving unit; and fireproof door lock installed at a front end of the fireproof door lock; so that the driven mechanism of the press unit having the effect of opening the fireproof door look. | 07-23-2009 |
| 20100043505 | Latch Device for Panic Door Lock with Anti-Picking Function - A latch device ( | 02-25-2010 |
| 20100126239 | Conical shank anti-ligature releasable door lever - A lever latch lock assembly including:
| 05-27-2010 |
| 20110192201 | Operating Device for Lock - An operating device for a lock includes a mounting plate mounted to an outer side of a door. A frame is fixed in a receiving space of the door. A push member includes a push section operably connected to a latch. The push member further includes a pivotal section having a pivot hole and a sliding groove. A first pivot extends through the pivot hole of the pivotal section and the frame. A second pivot extends through the frame and is slideably received in the sliding groove of the pivotal section. A lever includes a lug received in the receiving space. The lug has a pin hole through which the second pivot extends. When the lever pivots from an upper position to a lower position about a pivot axis defined by the second pivot, the push member pivots about a pivot axis defined by the first pivot for unlocking operation. | 08-11-2011 |
| 20110239712 | Adjustable Driving Mechanism for Panic Exit Door Lock - A door lock includes a bracket fixed to a door. An engaging member is pivotably mounted to the bracket. A draw member includes a first end pivotably connected to the engaging member and a second end operably connected to a retractor. A linking rod is connected between the draw member and an operative member mounted to the door such that operation of the operative member causes movement of the linking rod and pivotal movement of the draw member, which in turn, urges the retractor to move a latch bolt from an extended position to a retracted position. A follower is coupled to the first end of draw member to move therewith. An adjusting member is in threading connection with the follower and rotatable to move the follower relative to the engaging member to adjust a position of the second end of the draw member relative to the retractor. | 10-06-2011 |
| 20130192315 | LOCK - A lock, which is designed as a panic lock for a door of freezing room, includes a chassis ( | 08-01-2013 |
| 20140102155 | Door Lock - A door lock ( | 04-17-2014 |
| 20160060902 | POWER CONTROL CIRCUIT ASSEMBLY FOR AN ELECTRIC DOOR LATCH MECHANISM - A power control circuit assembly for an electric door lock comprises a load control circuit module configured to distribute a DC operating voltage to power an electromechanical door latch mechanism and its associated access control device. An energy storage device such as a rechargeable battery is coupled to the load control circuit module and is configured to deliver a DC voltage to the load control circuit module wherein the DC energy storage device voltage supplies the DC operating voltage. A rectifier is configured to receive an input AC voltage and convert the input AC voltage to an input DC voltage. The input DC voltage is adapted to deliver an energy storage device recharge voltage. An energy storage device voltage detection module is configured to interrogate a DC voltage supplied by the energy storage device. | 03-03-2016 |
