| Patent Number |
Title Of Patent |
Date Issued |
| D545172 |
Keypad escutcheon |
June 26, 2007 |
|
| D514919 |
Anti-vandal door trim |
February 14, 2006 |
|
| D514918 |
Anti-vandal door trim |
February 14, 2006 |
|
| D474103 |
Low profile keypad escutcheon |
May 6, 2003 |
|
| D470033 |
Low profile keypad escutcheon |
February 11, 2003 |
|
| D363205 |
Handle |
October 17, 1995 |
|
| D290442 |
Electronic door lock |
June 23, 1987 |
|
| D288899 |
Magnetic card-operated electronic door lock |
March 24, 1987 |
|
| 7452012 |
Multi-functional mortise lock |
November 18, 2008 |
| 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 moving components |
| 7287787 |
Linear thumb-piece actuation latch mechanism |
October 30, 2007 |
| 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 latch mechanism and ma |
| 7204050 |
Exit device with lighted touchpad |
April 17, 2007 |
| 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 push rail actuator |
| 7188870 |
Multi-functional mortise lock |
March 13, 2007 |
| 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 moving components |
| 7077437 |
Mortise lock integrated trim assembly with a retracting spindle |
July 18, 2006 |
| 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 that extends between the |
| 7032418 |
Vertical door locking system |
April 25, 2006 |
| 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 release the deadb |
| 6938445 |
Mortise lock status indicator |
September 6, 2005 |
| 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 rotating indicator spindle |
| 6932486 |
Mortise lock with lighted trim plate sign |
August 23, 2005 |
| 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 converter is situated on the |
| 6908126 |
Enhanced security catch assembly for retaining a handle on a spindle |
June 21, 2005 |
| 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 that receives a corre |
| 6880872 |
Lever handle return spring assembly |
April 19, 2005 |
| 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 the door to accommodat |
| 6860129 |
Security classroom function lock mechanism |
March 1, 2005 |
| 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 handle always operates |
| 6735993 |
High strength lever handle lock mechanism |
May 18, 2004 |
| 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 spring return mec |
| 6669249 |
Lever handle support mechanism |
December 30, 2003 |
| A handle support mechanism is designed for attachment to a door lock, preferably the exterior of a mortise lock, that has two handles driven back to an initial position with a common return spring after either handle is used. The support mechanism prevents the unused handle from droo |
| 6626018 |
High strength lever handle lock mechanism |
September 30, 2003 |
| 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 spring return mec |
| 6398274 |
Retracting spindle for mortise lock |
June 4, 2002 |
| A retracting spindle mechanism has a spindle that extends between a handle trim mechanism mounted on the face of a door and a mortised door lock. The spindle is rotated by the handle to operate the door lock and slides axially in a hub to accommodate doors of different thicknesses. A con |
| 6282929 |
Multipoint mortise lock |
September 4, 2001 |
| A multipoint mortise lock assembly includes an extended face piece mounted flush along the edge of a door, a mortise lock connected to the face piece, and a pair of hook bolt latch mechanisms mounted to the face piece above and below the mortise lock. An elongated actuator, which is |
| 6178794 |
Lever handle controller |
January 30, 2001 |
| A free-wheeling lock mechanism for operating a door latch includes a body, a handle, a lock and a split shaft having two halves rotationally connected together along the shaft axis. One half of the shaft is connected to the handle and one half extends from the body to operate the doo |
| 6174004 |
Mortise latch and exit device with concealed vertical rods |
January 16, 2001 |
| A mortise latch and exit device includes active and passive mortise latch mechanisms with corresponding concealed vertical rods operated by links mounted within the mortise latch mechanisms. The mortise latch mechanisms latch double doors at a center point between the doors and at top po |
| 6120071 |
Mortise latch vertical rod exit device |
September 19, 2000 |
| A mortise latch and vertical rod exit device latches at a center point between two doors and at top points between each door and the door frame. Optionally vertical rods may also be used to latch at bottom points between the doors and the floor. The latch includes an active and a pas |
| 6101856 |
Free-wheeling lever handle lock mechanism |
August 15, 2000 |
| A free-wheeling lock mechanism for a cylindrical door lock includes inner and outer spindles directly connected to corresponding inner and outer lever handles, a latch retractor located between the spindles and a cylindrical outer cam located within the outer spindle. The outer cam has |
| 5727406 |
Lever assembly for high torque load |
March 17, 1998 |
| A lever assembly for a door lock comprising a lock cylinder and a pair of housings, each of which being mounted to a respective shank portion of the lock cylinder. Each housing has a circular channel formed in one side thereof. Each housing defines a lip that has a substantially planar |
| 5715715 |
Lock assembly with motorized power screw |
February 10, 1998 |
| A lock assembly comprising a casing, a lever rotatably attached to the casing, the lever having a spindle attached thereto, a motor secured to the casing, the motor having a shaft, a substantially cylindrical member attached to the motor shaft and having a helically extending groove, and |
| 5694798 |
Motorized lock actuators |
December 9, 1997 |
| A motorized lock actuator adapted to replace a mechanical lock actuator in preexisting and installed lock assemblies to convert them to electronic operation includes an electrically insulated motor housing and at least one electrically insulated bushing on the motor shaft to prevent |
| 5678870 |
Reversible mortise lock |
October 21, 1997 |
| A reversible mortise lock comprising a casing, a latch bolt and a pair of spindle hubs disposed within the casing. Each spindle hub is independently pivotable about a fixed axis and has a slot. The latch bolt moves from an extended position to a retracted position in response to pivotal |
| 5558759 |
Metal finishing process |
September 24, 1996 |
| A finishing process for a base metal substrate comprising the steps of polishing the surface of the base metal substrate, electroplating the metal substrate with copper, electroplating a layer of metal over the copper plate, and depositing a substantially moisture impervious coating |
| 5531492 |
Ratcheting latch mechanism for a vertical rod door exit device |
July 2, 1996 |
| A ratcheting latch mechanism for holding the vertical rods of a door exit device in the retracted position includes a chassis and a latch rod, with a plurality of ratchet notches formed therein, slidingly held by the chassis for motion between an extended and a retracted position. One en |
| 5475998 |
Lock assembly with locking bar |
December 19, 1995 |
| A lock assembly includes a cylindrical key plug with a key slot and a shell surrounding the plug. A first locking mechanism is provided by split top pins projecting across the shear surface interface between the plug and the shell and are positioned to align the split with the shear surf |
