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| Number | Title | Issue Date |
| 7354081 | Single bolt mortise lock The present invention comprises a reversible, single bolt mortise lock assembly for hinged doors. The lock assembly combines live bolt and dead bolt functions utilizing only a single bolt. The invention further features a reversible lock assembly that can be opened ... | 04/08/2008 |
| 7311339 | Latching system and method A latching system and method are provided for facilitating an easier and/or smoother latching of a locking mechanism, such as a latching and catching mechanism for use with the closing of doors. In accordance with an exemplary embodiment, an exemplary latching syste... | 12/25/2007 |
| 7303215 | Mortise locking device A lock assembly includes a single switch actuated by a cam for monitoring the position of a main bolt and an auxiliary bolt. The main bolt and the auxiliary bolt engage and move the cam between an actuated position and a released position. In the actuated position t... | 12/04/2007 |
| 7261332 | Multi-position aircraft servicing pit lid latch A multi-position latch mechanism is provided for a subsurface aircraft ground servicing chamber formed by a pit having an upright interior wall and a pit lid seat disposed atop the pit. A pit lid is provided which, when closed, rests upon the pit lid seat. The latch... | 08/28/2007 |
| 7110713 | Safety structure for a cover device A safety structure for a cover device includes a base assembly and a cover assembly. The base assembly has a concave portion. The cover assembly is hinged to the base assembly and may cover the base assembly. The cover assembly has a cover body and a projection, whi... | 09/19/2006 |
| 6957836 | Lock assembly A lock assembly having a housing containing a push rod movable along its longitudinal axis between a locked position where the push rod is extended outwardly of the housing and a retracted, unlocked position. A movable latch moves radially to engage with the push ro... | 10/25/2005 |
| 6688063 | Wood core exterior door with mortise lock A storm door construction includes an internal rectangular frame providing a pane opening, the frame including left and right vertical members, a head panel and a base panel. One of the left and right vertical members comprises upper and lower vertical st... | 02/10/2004 |
| 6318136 | Electromagnetically controllable safety lock An electromagnetically controllable safety lock includes a locking bar which moves a slider, which is provided with teeth and which carries a blocking plate equipped with a passage pin channel. The blocking plate is coupled via a spring to a control plate... | 11/20/2001 |
| 5974842 | Locking slide latch A locking slide latch comprises components that are easily assembled without the need for separate fasteners or adhesives. A presently preferred latch comprises a housing, a pawl received within the housing and an actuating member associated with and slid... | 11/02/1999 |
| 5897147 | Locking slide latch A locking slide latch comprises components that are easily assembled without the need for separate fasteners or adhesives. A preferred latch comprises a gripable base member having a spring member mounted thereon, a locking member rotatably mounted on the... | 04/27/1999 |
| 5713227 | Lever activated dead-bolt lock A push lever activated dead-bolt lock for a door is described. The dead-bolt lock includes a dead-bolt axially mounted within a sleeve, the sleeve having a slot formed in each lateral side of the sleeve, the slots aligned parallel to each other and having... | 02/03/1998 |
| 5209168 | Secure closure system for metal cabinet doors A security system for a metal cabinet door comprises a latch adapted to be locked by a lock operating the latching members of the door. These comprise upper and lower strip members each having a plurality of hooks each of which, when the door is closed an... | 05/11/1993 |
| 4472143 | Method for securing doors, and the like This invention is a unique method and apparatus for securing doors, windows, and the like, from unwarranted entry so that limited opening of the door, or the like, can be accomplished. The invention further provides for the emergency release of the secure... | 09/18/1984 |
| 4363227 | Door lock construction An improved door lock construction comprising a lock bolt formed in U-shape operable in association with an actuating mechanism, an interlocking device, a dog device and a hold-release device assembled in a box type housing to be mounted on the inner side... | 12/14/1982 |
| 4257193 | Grate lock device A device is disclosed for locking a grate or the like to its receiving frame to make difficult the removal of the grate by an unauthorized person utilizing a makeshift tool. The locking device has a spring loaded latching pin carried by supports secured t... | 03/24/1981 |
| 4231597 | Flush-type door lock A flush mountable door lock includes a recessed body member, a lock bolt slidably mounted on the body member, and a paddle-shaped operating handle for moving the bolt. The handle is movable between nested and projected positions. A bolt actuator extends f... | 11/04/1980 |
| 3999411 | Lock knob control mechanism Lock knob control mechanism comprising a three-piece cam assembly made up of a central cam actuator and two outside knob guides that may be selectively assembled to make the two knobs at opposite sides of a door active or inactive. An inactive knob guide ... | 12/28/1976 |
| 3971241 | Operating device for locking mechanisms in doors, hatches and the like An operating device for locking mechanisms in doors or the like, especially on vehicles. A sealed system of flexible bellows interconnected by pipes is used to transfer a manual compression of an actuating bellows into an expansion of a bellows which is a... | 07/27/1976 |
| 3967478 | Door latching apparatus actuated by cleansing agent sensor An apparatus for unlatching a door to a hygienic area actuated by sensor electrodes in contact with the electrolytic residue of a cleansing agent upon the hand or limb of a person desiring access to the hygienic area.... | 07/06/1976 |
| 3950970 | Pre-shipment protective device A pre-shipment protective device is used on a teller's locker to protect monies to be transferred. Only the transfer agent has a key to open the pre-shipment protective device. Only the bank has a key to release the latch to again close the locker once th... | 04/20/1976 |
| 3944040 | Apparatus for facilitating pick up of dry cleaning Apparatus used to facilitate pick up of dry cleaning which uses a multi-drawered cabinet with each drawer having a separate access door. The door is unlocked when a coin is deposited therein and thereafter when closed is locked. A key operated device enab... | 03/16/1976 |
