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| Number | Title | Issue Date |
| D646549 | Paddle trim assembly | 10/11/2011 |
| D646548 | Paddle trim assembly | 10/11/2011 |
| 7905522 | Exit pushbar with blocking mechanism An exit device for latching a door in tornado-prone areas keeps the door closed when the door is subjected to tornado debris impact by incorporating a blocking arm that swings outward away from the door as impact energy is transferred through the door to the blockin... | 03/15/2011 |
| 7900978 | Return spring assembly for a lock mechanism A return spring assembly for returning a handle to the horizontal orientation includes a spring housing having an outer flange that contacts an outer surface of a door around the perimeter of a bored opening and an inner portion with a curved section that securely s... | 03/08/2011 |
| 7883123 | Electronic push retraction exit device An electronic push retraction exit device includes a support rail, a push rail and a latch mechanism having a latch bolt operably connected to the push rail and movable between latched and unlatched positions. A control circuit in the exit device drives a linear act... | 02/08/2011 |
| 7839265 | Integrated fire exit alert system A fire exit alert system, preferably integrated into an exit device or automatic fire exit door closer, uses sound and light to signal the location of a fire exit in darkness and smoke-obscured rooms. The alert system includes a voice signal, such as “EXIT LOCATED... | 11/23/2010 |
| 7828347 | Fire plate for a bored in lock assembly A fire plate for receiving a bored in lock assembly and preventing passage of fire through a lock opening bored perpendicularly through a fire door. The fire plate is particularly adapted for use with integrated lock and latch assemblies that are designed for instal... | 11/09/2010 |
| D609994 | Companion escutcheons with touch pads | 02/16/2010 |
| D602762 | Companion escutcheons | 10/27/2009 |
| D601003 | Companion escutcheons | 09/29/2009 |
| D601002 | Companion escutcheons | 09/29/2009 |
| D601001 | Companion escutcheons | 09/29/2009 |
| D599189 | Companion escutcheons with touch pads | 09/01/2009 |
| D597821 | Companion escutcheons | 08/11/2009 |
| 7528700 | Integrated fire exit alert system A fire exit alert system, preferably integrated into an exit device or automatic fire exit door closer, uses sound and light to signal the location of a fire exit in darkness and smoke-obscured rooms. The alert system includes a voice signal, such as “EXIT LOCATED... | 05/05/2009 |
| 7488012 | Thermal pin assembly A pin assembly includes a spring held in compression inside a case by a thermal fuse located at the back end of the pin. The fuse is thermally activated to collapse, which allows the back end of the pin to move forward. The spring drives the front end of the pin out... | 02/10/2009 |
| 7484777 | Electronic push retraction exit device An electronic push retraction exit device includes a support rail, a push rail and a latch mechanism having a latch bolt operably connected to the push rail and movable between latched and unlatched positions. A control circuit in the exit device drives a linear act... | 02/03/2009 |
| 7452012 | Multi-functional mortise lock A multi-functional mortise lock that can be rapidly converted between different functions without opening the mortise lock case by installing blocking screws that extend through threaded blocking openings in a sidewall of the case and into blocking interference with... | 11/18/2008 |
| 7287787 | Linear thumb-piece actuation latch mechanism This invention provides a thumb-piece door latch mechanism which has ergonomic features, is modular and can be used with any escutcheon, can be used with all type locks, and which in the locked door mode provides greater resistance to abusive attack of the door latc... | 10/30/2007 |
| D545172 | Keypad escutcheon | 06/26/2007 |
| 7204050 | Exit device with lighted touchpad An exit device includes an electroluminescent exit sign assembly, preferably mounted on a push rail actuator of the exit device. An electroluminescent illuminator, an opaque material and a transparent protective cover form the electroluminescent sign assembly. The p... | 04/17/2007 |
| 7188870 | Multi-functional mortise lock A multi-functional mortise lock that can be rapidly converted between different functions without opening the mortise lock case by installing blocking screws that extend through threaded blocking openings in a sidewall of the case and into blocking interference with... | 03/13/2007 |
| 7077437 | Mortise lock integrated trim assembly with a retracting spindle An integrated mortise lock trim mechanism is provided for mounting on the surface of a door and has a handle turning a spindle that extends into the door to operate a lock mechanism mounted therein. The trim assembly is pre-assembled and has a retracting spindle tha... | 07/18/2006 |
| 7032418 | Vertical door locking system A vertical door locking system includes a door lock with a deadbolt that moves horizontally, a striker with an upward facing strike opening that vertically receives the deadbolt and a lock controller. The striker includes an electrically operated catch to engage and... | 04/25/2006 |
| D514919 | Anti-vandal door trim | 02/14/2006 |
| D514918 | Anti-vandal door trim | 02/14/2006 |
| 6938445 | Mortise lock status indicator A conventional mortise lock is provided with a visual status indicator to show whether the room is occupied or vacant. The mortise lock output, which operates the deadbolt, is used to linearly move an indicator slide positioned on the outside of the door by a rotati... | 09/06/2005 |
| 6932486 | Mortise lock with lighted trim plate sign A standard mortise latch lock escutcheon or trim plate having an aperture for housing an electroluminescent strip captured within a two-piece lens structure. A dc or ac external power supply converter is used in conjunction with the existing grid power. The converte... | 08/23/2005 |
| 6908126 | Enhanced security catch assembly for retaining a handle on a spindle A catch assembly that locks a handle onto the spindle of a lock mechanism has enhanced resistance to attempts to remove the handle by forcibly driving the catch assembly inwards. The catch assembly includes a base mounted on the spindle having a threaded opening tha... | 06/21/2005 |
| 6880872 | Lever handle return spring assembly A lever handle return spring assembly for a cylindrical lock mounted in a bored opening in a door includes support plates on opposite sides of the door. The support plates include cylindrically depressed inner regions that extend partially into the bored opening in ... | 04/19/2005 |
| 6860129 | Security classroom function lock mechanism A lock mechanism operated by inner and outer lever handles provides a security classroom function and includes inner and outer lock mechanisms that are independently switchable between locked and unlocked states by inner and outer lock cylinders and keys. The inner ... | 03/01/2005 |
| 6851291 | Motorized locking mechanism A motorized locking mechanism for locking and unlocking a device having a hub rotatable by a handle about a hub axis. A reversible motor turns a threaded spring screw to move a locking spring and vertically drive a connecting arm between locked and unlocked position... | 02/08/2005 |
| 6735993 | High strength lever handle lock mechanism A lock mechanism for use with lever handles includes a lock core and a latch mechanism that is rigidly connected to the lock core to prevent the lock core from rotating in the door. Through-bolts are not needed, allowing a small diameter rose to be used. Stops and a... | 05/18/2004 |
| 5992195 | Lever handle controller for mortise lock A free-wheeling lever handle controller for operating a mortise lock provides free-wheeling functionality while maintaining the full operational characteristics of various mortise lock functions. A lock mode receiving mechanism connectable to the lock out... | 11/30/1999 |
| 4869083 | Cylindrical lever handle lock A cylindrical lever handle lock mounted in a door panel having a transverse bore therethrough is secured against rotation due to torque applied to the lever handles. The lock mechanism includes a lock chassis having a pair of chassis support members each ... | 09/26/1989 |
