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| Number | Title | Issue Date |
| 7350383 | Electronic lock The present invention provides an electronic lock structured to include a first bolt configured with an elastic clasp, an electromagnetic device connected to an input device, a second bolt and a microswitch connected to a security system, all of which are installed ... | 04/01/2008 |
| 7305800 | Storm barrier assembly An apparatus and assembly for retaining a substantially flat, protective panel within a frame such as a window frame. In one embodiment, the panel retention apparatus of the present invention includes a bracket member for fitting over an edge of the panel, such that... | 12/11/2007 |
| 7273241 | Door latch actuator A door latch actuator includes a housing, a latch bolt pin actuator, and a spring latch bolt actuator. The housing includes a strike plate defining a latch opening. The latch bolt pin actuator is mounted for movement in the housing between a first extended position ... | 09/25/2007 |
| 7261341 | Reversible latch assembly A reversible latch assembly has a faceplate assembly, a latch bolt assembly, a bolt-releasing assembly, a guardian bolt assembly, a driver assembly and a casing assembly. The latch bolt assembly, the bolt-releasing assembly and the guardian bolt assembly are rotatab... | 08/28/2007 |
| 7185927 | Glovebox latch A latch assembly is re-configurable for plural orientations. A slide lock plate engages a claw-typed pawl. A rotating activation mechanism links an operator handle to the slide plate. The handle causes the activation mechanism to rotate, thereby retracting the slidi... | 03/06/2007 |
| 7108300 | Reversible latch bolt A latch is provided for a mortise lock of the type comprising a housing for accommodating the lock components. The latch comprises a first and second portions movably mounted in the housing and a securing element for releasably connecting the first and second portio... | 09/19/2006 |
| 7100407 | Handled lock set for a door A lock set includes a hollow intermediate spindle connected to a door latch and to an inner handle assembly, a turning rod extending inside the intermediate spindle, a coupler connected to a key-operated lock of an outer handle assembly so as to be turned thereby an... | 09/05/2006 |
| 7083206 | DoubleDeadLockâ˘: a true combination door latch and deadbolt lock with optional automatic deadbolt locking when a door is latched A combined automatic latch and deadbolt assembly includes a latch configured to selectively assume a retracted and extended configuration and a deadbolt configured to selectively assume a cocked and a released configuration. The combined automatic latch and deadbolt... | 08/01/2006 |
| 7007524 | Dead bolt lock system having multiple security features A dead bolt lock system which may use one or more security locks in conjunction with a dead bolt to provide various levels of security access to a door. Generally, the lock system tests the condition of the security lock or locks before allowing retraction of the de... | 03/07/2006 |
| RE38693 | Sliding door latch with self-retracting finger pull A sliding door deadbolt assembly containing a self-retracting finger pull mechanism is described. Provided is a latch assembly having a self-latching deadbolt assembly for mounting to a sliding door and latching with a strike plate mounted in a door frame and a self... | 02/01/2005 |
| 6676178 | Door lock assembly having escutcheon with removable posts A door lock assembly having a first escutcheon assembly for mounting a latch mechanism. The escutcheon includes a plate having a through-hole, first and second post mounts formed on an inward facing side of the plate outside the through-hole, and first an... | 01/13/2004 |
| 6361087 | Locking fitting for a door, French window or the like provided with a spring-bolt elastically restored into locking position A locking fitting for a leaf of a door, French window or the like, such as a lock, espagnolette-lock or the like, at least one spring-lock (2) elastically restored into locking position and capable of being actuated, through an appropriate control mechani... | 03/26/2002 |
| 6334635 | Latch bolt mechanism of a tubular lock with adjustable backset by an extension casing A latch bolt mechanism of a tubular lock allows adjustment in backset by using an extension casing. The latch bolt mechanism has a latch bolt housing having a latch bolt mounted therein, the latch bolt being movable beyond a face plate or retracted into t... | 01/01/2002 |
| 6151935 | Deadbolt combination lock system with automatic locking spring bolt A deadbolt lock and a deadbolt which will extend automatically whenever a container is locked by virtue of a rigid portion of the container engaging a trigger element extending from the end face of the bolt and causing the release of an outer bolt portion... | 11/28/2000 |
| 5927769 | Kid's safety latch This invention is directed to a door latch having an auxiliary bolt which activates the latch bolt, and the use of a latch to confine small children in the home. The auxiliary bolt has a hinged beveled end which pivots when the door is opened but is fixed... | 07/27/1999 |
| 5918916 | Automatic deadbolt with separate trigger An automatic door latch has a case and a bolt movable within the case between a fully extended position in which the bolt extends forwardly of the case and a partially extended position in which the bolt is positioned to contact a door strike. There is a ... | 07/06/1999 |
| 5816629 | Sliding door latch with self-retracting finger pull A sliding door deadbolt assembly containing a self-retracting finger pull mechanism is described. Provided is a latch assembly having a self-latching deadbolt assembly for mounting to a sliding door and latching with a strike plate mounted in a door frame... | 10/06/1998 |
| 5794991 | Interlocking dead bolt with projecting pins A lock assembly of a door preparation includes at least one spring latch member which is spring biased within a door jamb bore between an extended position and a retracted position in which the spring latch member, when the door is being opened, engages a... | 08/18/1998 |
| 5611581 | Latch assembly A latch assembly wherein a retractor member conjointly lowers a stop which is preventing latch bolt retraction and rotates a cam which will retract the bolt. A deadlatch bolt stop, which limits the forward displacement of the deadlatch bolt relative to th... | 03/18/1997 |
| 5529351 | Sliding door self-latching apparatus A latch assembly and self-latching deadbolt assembly for mounting to a sliding door and latching with a strike plate mounted in a door frame. Provided are a housing for fitting within the sliding door, a self-latching deadbolt for engaging with the strike... | 06/25/1996 |
| 5513505 | Adjustable interconnected lock assembly An interconnected lock assembly for use on a door includes a first latch adapted to be positioned in a first bore in the door and a second latch adapted to be positioned in a second bore in the door, spaced from the first bore. There is an outside operati... | 05/07/1996 |
| 5452928 | Sliding door self-latching apparatus A latch assembly for mounting to a sliding door and latching with a strike plate mounted in a door frame. Provided are a housing for fitting within the sliding door, a self-latching deadbolt for engaging with the strike plate, and a mechanism for sliding ... | 09/26/1995 |
| 5219385 | Lock for fire-escape door A lock for fire-escape door provided with an actuating member having an integrally formed tongue to block the retraction of a main latch from a protruded position provides higher security to the lock. The lock includes: a housing; a pivotable main latch a... | 06/15/1993 |
| 5044182 | Automatic deadbolt An automatic deadbolt and combined latch and automatic deadbolt is disclosed whereby a manually operable control on the inside of a door may be used to enable and disable the automatic extension of the latch bolt to a comparable deadbolt position upon the... | 09/03/1991 |
| 5029912 | Locking device A locking device has a trigger bolt for fastening a dead bolt and can be released by actuating a cooperating assembly placed in a door frame from a remote control room. A lock case placed in a door includes a turnable inner operating element provided with... | 07/09/1991 |
| 5020837 | Tubular door lock with plate shaped bolt actuator A tubular door lock (1) has an actuating plate member (4) of metal formed by pressing and provided with a square shaft hole (42) and four square projections (43) around the square shaft hole to fit in a round opening (22, 32) of either of two assembling p... | 06/04/1991 |
| 4870841 | Lock deadbolt protector Mortise lock has a guardbolt which, when depressed, moves a hooked lever inside the lock housing from a first position in which it blocks operation of the deadbolt operator, to a second position in which it clears the deadbolt operator and permits it to o... | 10/03/1989 |
| 4848118 | Lock hold-back latch with anti-pick device Disclosed is an improvement in the lock mechanism described in U.S. Pat. No. 3,073,143. The improvement comprises barrier walls on the bolt which prevent a shim-type pick device from opening the lock mechanism. The barrier walls are positioned to prevent ... | 07/18/1989 |
| 4840050 | Lock device with trigger bolt The lock device comprises a locking portion and a fixing portion. The locking portion comprises a rotation lever mounted on a door side and turned by rotating a thumbturn or a key, a dead bolt engaging with the rotation lever and performing lock and relea... | 06/20/1989 |
| 4765663 | Spring-loaded dead bolt assembly A lock assembly is provided which contains a spring-loaded dead bolt and a spring-loaded plunger intercoupled to one another. The assembly is such that when the door is closed, the plunger is pushed in by the striker plate on the door frame, and this rele... | 08/23/1988 |
| 4729585 | Trumpet door lock with an adjustable dead bolt A trumpet lock has an extending shell and a rotating shell which are disposed about a cylinder. The rotating shell and extending shell can be manipulated by a projection-and-slot arrangement into two positions, namely a short position and a long position.... | 03/08/1988 |
| 4718706 | Tubular door lock with an adjustable device This invention relates to a tubular door lock which mainly includes a basic shell, an extending shell, a dead bolt, two assembling plates, a safety bolt, a locking plate and an unlocking plate. Through apertures, notches and holes disposed thereon, it can... | 01/12/1988 |
| 4679834 | Door unlocking device A device for unlocking a door locked with a door lock apparatus of a type which is comprised of a latch bolt and a trigger bolt capable of locking the latch bolt and of preventing the latch bolt from being retracted when the door is closed. The unlocking ... | 07/14/1987 |
| 4679416 | Trigger and latch bolt assembly A lock mechanism includes a casing structure adapted to be mounted to one of a door and a door frame for cooperation with an apertured strike plate mounted to the other of the door and door frame. The lock mechanism further comprises a front plate for the... | 07/14/1987 |
| 4593543 | Security lock A solenoid-operated door lock has a pivotally mounted deadlock lever which can lock either a latchbolt or a deadbolt. The locking and release movement of the deadlock lever is controlled by pivoting a release lever which is biased by a spring to maintain ... | 06/10/1986 |
| 4564229 | Latch assembly having selectable backset distance A latch mechanism is provided in which one of two different backset distances is facilitated in a single latch assembly. A latch slide which is used to retract the latch bolt of the assembly is provided with a removable latch slide extension which determi... | 01/14/1986 |
| 4516798 | Latch bolt operating assembly having bolt operating improvements Retracting motion is imparted through door knobs or levers into a transverse half-round spindle which, in turn, longitudinally moves a retractor slide. The retractor slide is forwardly pivotally connected through a link to a cam having its rearward end pi... | 05/14/1985 |
| 4496178 | Extended latch tube assembly An extended latch tube housing comprises a standard deep-drawn tubular shell having a front mounting flange and rear end wall, and a coaxial second deep-drawn shell of equal diameter with its end wall fixed to the end wall of the standard shell. The stand... | 01/29/1985 |
| 4372590 | Electronic security device and method An electronic locking device having a key unit and lock unit which units each have substantially identical integrated circuits contained therein for electronically controlling the operation of the locking device. The integrated circuit in the key element ... | 02/08/1983 |
| 4318558 | Latch bolt mechanism A deadlocking latch bolt in a tubular housing is connected to a tailpiece front cross head having a retainer arm in a radial window in the bolt and a blocker arm abutting the opposite housing side to maintain the connection. A deadlocking tumbler is biase... | 03/09/1982 |
