Dead Bolt, Dogged Latch Bolt Patents (Class 70/110)
  • Patent number: 9428937
    Abstract: A lock includes a deadbolt assembly having a deadbolt and a deadbolt actuator. The lock also includes a latch assembly discrete from the deadbolt assembly. The latch assembly includes a shoot bolt and a shoot bolt actuator. A blocking element may block actuation of the shoot bolt from an unlocked position to a locked position when the deadbolt is in a retracted position. Alternatively or additionally, the blocking element may block actuation of the shoot bolt from a locked position to an unlocked position when the deadbolt is in an extended position.
    Type: Grant
    Filed: July 22, 2011
    Date of Patent: August 30, 2016
    Assignee: Amesbury Group, Inc.
    Inventors: Gary E. Tagtow, Tracy Lammers, Allen Rickenbaugh, Eric J. Adamson, Austin Hemmingsen, Dan Raap
  • Patent number: 9410350
    Abstract: The present invention relates to a locking device suitable for allowing or restricting access into an area or space, the locking device (1) comprising at least one locking element (9) arranged to, in a first locking state, engage a striking arrangement (11), such as a strike plate, for holding a closing element (3), such as a door, locked, and, in a second, non-locking state, to allow movement of the closing element.
    Type: Grant
    Filed: June 27, 2011
    Date of Patent: August 9, 2016
    Assignee: Stendals El AB
    Inventor: Jan Stendal
  • Patent number: 9085919
    Abstract: A lock assembly for a closure comprises a housing, a handle pivotally mounted in an exterior portion of the housing and a latch operably connected with the handle. A key lock mounted on the exterior portion of the housing has a locked and an unlocked position. A lock cam rotatably mounted in the housing is operably connected with the key lock for rotation therewith. A deadbolt lock is operably connected to the lock cam via a crank arm and a link to a motor. An electronic touchpad mounted on the exterior portion of the housing is operatively connected with the motor, whereby entry of a preselected numerical code actuates the motor and contemporaneously shifts the deadbolt lock between locked and unlocked positions.
    Type: Grant
    Filed: March 20, 2012
    Date of Patent: July 21, 2015
    Assignee: BAUER PRODUCTS, INC.
    Inventor: Bruce C. Bacon
  • Patent number: 8997535
    Abstract: A latch assembly is described. The latch assembly includes a casing. The latch assembly provides for the transfer of rotational force to translation plates. The rotational force drives translation plates and extends the translation plates from the latch assembly. A first translation plate is mechanically engaged to the casing. A second translation plate is mechanically engaged to the casing. The latch assembly includes a key assembly including a rotatable cam. A toggle cam is pivotally engaged to the casing via a pivot axle, and rotating the cam contacts the toggle cam to extend or retract both the first translation plate and the second translation plate from the casing.
    Type: Grant
    Filed: February 24, 2011
    Date of Patent: April 7, 2015
    Assignee: Austin Hardware and Supply, Inc.
    Inventor: Mark Steven Jeffries
  • Patent number: 8997534
    Abstract: A door lock includes a deadbolt and a latchbolt each movable between a thrown position and a retracted position, an inside lever operable to move the latchbolt between the thrown and retracted positions, and an outside lever configured in one of a locked and unlocked state in which the outside lever is operable to move the latchbolt between the thrown and retracted position. A thumbturn is coupled to the deadbolt and is movable between a first position in which the deadbolt is in the thrown position, the latchbolt is in the thrown position, and the outside lever is locked, a second position in which the deadbolt is in the retracted position, the latchbolt is in the thrown position, and the outside lever is locked, and a third position in which the deadbolt is in the retracted position, the latchbolt is in the thrown position, and the outside lever is unlocked.
    Type: Grant
    Filed: July 25, 2012
    Date of Patent: April 7, 2015
    Assignee: Schlage Lock Company LLC
    Inventors: Subashchandra G. Rai, Charan Kumar
  • Patent number: 8931316
    Abstract: A method for profiling the broad sides of a flat key, a key blank being clamped in a clamping device so that the broad side of the key blank is exposed. Guide grooves and variation grooves which are complementary to the longitudinal sectional profile of the cutter teeth are milled into the broad side by advance in the longitudinal direction of the key, in one work operation, using a milling cutter that has cutter teeth on its peripheral surface and rotates about a cutter shaft. To produce undercut grooves, the axis of the cutter shaft is inclined at an angle of inclination relative to the longitudinal center plane of the key, ribs of the cutter teeth producing an undercut guide wall using at least one rib.
    Type: Grant
    Filed: May 31, 2011
    Date of Patent: January 13, 2015
    Assignee: C. ED. Schulte Gesellschaft Mit Beschränkter Haftung Zylinderschlossfabrik
    Inventors: Michael Reine, Thomas Wallberg
  • Patent number: 8875549
    Abstract: A lock assembly has a body, a latching device, a linking device and a locking mechanism. The linking device is connected to and driven by the latching device. The locking mechanism is moveably mounted in the body and has a bolt base, a pushing element, a lever element and a locking bolt. The bolt base is mounted slidably in the body. The locking bolt is slidably mounted on the bolt base and is driven to retract into or completely extends out from the body with the transmission of the pushing element and the lever element.
    Type: Grant
    Filed: October 24, 2012
    Date of Patent: November 4, 2014
    Assignee: Door & Window Hardware Co.
    Inventors: Wei-Hung Chang, Chih-Lun Hsieh
  • Patent number: 8810361
    Abstract: A smart lock that can be built into or mounted onto a trash container with a lid and a can consists of two interlocking parts. The smart lock contains a primary lock operably connected to a secondary lock. The primary lock can be opened in presence of the trash collection vehicle or by a command from the owner. The secondary lock can be opened by the same conditions or when it senses mechanical and gravitational movement characteristics of the collection process, only when the first lock is open. Each lock comprises a timer and electronic circuitry that detects authorized commands and opens the lock.
    Type: Grant
    Filed: August 8, 2012
    Date of Patent: August 19, 2014
    Inventors: Dhruv Thukral, Viviane Soraya Ghaderi, Shervin Moloudi
  • Patent number: 8671724
    Abstract: In combination, a door, two latches at an edge of the door, and door latch operating components at opposite sides of the door; displaceable structure in the door having a position blocking movement of the latches, first mechanism responsive to displacement of one of the components for displacing the structure from blocking position to allow movement of the latches, for door opening; and electrically operable actuating means for effecting displacement of the structure from blocking position to allow movement of the latches, for door opening.
    Type: Grant
    Filed: April 19, 2010
    Date of Patent: March 18, 2014
    Assignee: Adams Rite Manufacturing Co.
    Inventor: Alan K. Uyeda
  • Patent number: 8419084
    Abstract: The present utility model discloses a smart lock with a modified structure comprising: a lock body including an inner handle and an outer handle, a latch and a bolt, an electrical locking mechanism for interfering retraction of the bolt; the lock body further comprises a manual locking and controlling mechanism connected to the inner and outer handles and controlling opening and closing; the manual locking and controlling mechanism is provided with a rotation actuating piece linked to the inner and outer handles and a bolt moving piece controlling extension and retraction of the bolt, wherein the rotation actuating piece is linked to the bolt moving piece via a locking member to control the bolt for locking when the inner and outer handles are lifted, and the rotation actuating piece is linked to the bolt moving piece via an unlocking member to control the bolt for unlocking when the inner and outer handles are pressed.
    Type: Grant
    Filed: May 12, 2010
    Date of Patent: April 16, 2013
    Assignee: Cmech (Guangzhou) Industrial Ltd.
    Inventors: Junliang Ding, Fubin Zhou
  • Publication number: 20100236302
    Abstract: A multi-function door lock system, comprising in combination, a frame having opposite sides, and installable on a door openable between an interior space and an exterior space, a deadbolt and a door latch carried by the frame to move between retracted and extended positions, a first rotary control located at one level on the frame to control deadbolt movement between extended and retracted positions via primary cam mechanism, a second rotary control at another level on the frame to control latch movement between extended and retracted positions, via secondary cam mechanism, means operatively connected between said secondary cam mechanism and the primary cam mechanism to effect deadbolt movement as aforesaid, in response to operation of the second rotary control, as effected via rotary input to the second rotary control from only one side of the frame. Means is also provided to be responsive to reverse rotation of the first rotary control to effect latch retraction independently of deadbolt displacement.
    Type: Application
    Filed: March 20, 2009
    Publication date: September 23, 2010
    Inventor: Alan K. Uyeda
  • Patent number: 7661279
    Abstract: A lock assembly has a body, a locking cylinder, a latching device, a linking device and a locking mechanism. The locking cylinder has a pushing lug. The linking device is connected to and driven by the latching device. The locking mechanism is driven by the pushing lug of the locking cylinder and has a bolt base, a pushing arm and a locking bolt. The bolt base is mounted slidably in the body and has an edge pushed by the pushing lug on the locking cylinder and a limiting tab. The locking bolt is slidably mounted on the bolt base and abuts with the limiting tab on the bolt base when the locking bolt retracts completely into or extends out from the body. The locking bolt has a blocking tab selectively blocks the linking device.
    Type: Grant
    Filed: November 17, 2008
    Date of Patent: February 16, 2010
    Assignee: Door & Window Hardware Co.
    Inventors: Hsing-Hui Huang, Hong-Sen Yan, Yi-Ming Lin
  • Patent number: 7603880
    Abstract: A mortise lock includes a case. A locking slide forms a bore to receive a spring and a steel ball to allow the locking slide to be slidable with respect to the lock case to abut against and/or disengage from a locking latch. The mortise lock is operated by turning an inside knob to drive a deadbolt and a latch lever and the locking slide is moved inward to engage a lever hub assembly thereby ensuring a locked condition. The mortise lock cannot be unlocked by operating an outside lever. When an inside lever is depressed, the lever hub assembly is driven to cause the rocker arm to push away a hooking lever and a knob spindle assembly, thereby retracting the deadbolt and the latch bolt and simultaneously moving the locking slide outward to show an unlocked condition, whereby the mortise lock can be unlocked by operating the outside lever.
    Type: Grant
    Filed: December 10, 2007
    Date of Patent: October 20, 2009
    Inventor: Te-Ming Chen
  • Patent number: 7603879
    Abstract: The present invention is an apparatus of joined parts that allows the locking of a gate framed in vinyl parts to a stationary post made of vinyl. The stationary vinyl post is typically hollow with the walls of the post being typically of a thickness of no more than ?of an inch and the outer diameter of the gate framing and post typically ranging from 3½inches by 3½inches square to 5 inches by 5 inches square in size. The apparatus includes a kit where round or square or rectangular cups that have overlapping top flanges and are inserted into and fit snugly in holes drilled or cut into the sides of a hollow vinyl fence post. The cups are configured to accept the installation of standard home deadbolt locks.
    Type: Grant
    Filed: March 12, 2003
    Date of Patent: October 20, 2009
    Inventors: LeRoy D. Dauterive, Jerry G. Baker
  • Patent number: 7452012
    Abstract: 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 inside the case. The moving components include a lock/unlock lever, a latch retract lever and a spindle hub. The blocking screws are stored in threaded storage openings in the sidewall of the case. The sidewall of the case is marked adjacent to the threaded blocking openings and storage openings to identify functions that will be performed when the blocking screws are installed in one or more of the blocking openings.
    Type: Grant
    Filed: March 12, 2007
    Date of Patent: November 18, 2008
    Assignee: Sargent Manufacturing Company
    Inventor: Richard H Huang
  • Patent number: 7188870
    Abstract: 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 inside the case. The moving components include a lock/unlock lever, a latch retract lever and a spindle hub. The blocking screws are stored in threaded storage openings in the sidewall of the case. The sidewall of the case is marked adjacent to the threaded blocking openings and storage openings to identify functions that will be performed when the blocking screws are installed in one or more of the blocking openings.
    Type: Grant
    Filed: March 26, 2004
    Date of Patent: March 13, 2007
    Assignee: Sargent Manufacturing Company
    Inventor: Richard Hai Huang
  • Patent number: 7155946
    Abstract: A mortise lock having a double locking function is provided, which includes: a deadbolt for performing a locking function of a door by going in and out the door; a latchbolt going in and out the door by a handle installed on the door; and a locking member for maintaining the latchbolt in a locked state by keeping the latchbolt projected when the deadbolt is projected, whereby it is possible to improve the security, and reducing breakage and malfunction of the deadbolt due to forced operations of the door, since the door employing the mortise lock cannot be forcedly opened without breaking the latchbolt as well as the deadbolt.
    Type: Grant
    Filed: October 14, 2005
    Date of Patent: January 2, 2007
    Assignee: Seoul Commtech Co. Ltd.
    Inventors: Sang-Han Lee, Jin-Sub Shin
  • Patent number: 6813915
    Abstract: A door lock has a primary dead bolt adapted to be controllably connected to a knob and an inner handle, a latch adapted to be controllably connected to the inner handle and an outer handle and a secondary dead bolt adapted to be controllably connected to the inner handle and driven by a key. Therefore, operation of the outer handle retracts the latch and operation of the inner handle retracts both the primary dead bolt and the secondary dead bolt.
    Type: Grant
    Filed: December 9, 2002
    Date of Patent: November 9, 2004
    Inventor: Shih-Chung Chang
  • Publication number: 20040194519
    Abstract: A top-and-bottom latch lock includes symmetrical L-shaped control rods provided with pressing portions for connecting to springs. The ends of the control rods are disposed with braking pieces provided with bumps, so as to have symmetrical gulfs of a flat member accommodate the bumps of the braking pieces. Above and below the flat member are provided with a turning axis having an opening and an oscillating shaft, respectively, such that the control rods are extended outward or contracted inward through turning of a rotation body, key or handles of the lock, thereby locking or opening a door.
    Type: Application
    Filed: April 4, 2003
    Publication date: October 7, 2004
    Inventor: Lynn Chen
  • Patent number: 6629441
    Abstract: A door unlocking system may be used as an add-on for a door lock; the door lock being mounted in a door comprising a door frame and a door latching bolt. The system allows the door to be unlocked and opened using only one hand. The system also allows for the door to be opened with a key, through a remote signal, and to be unlocked until it is relocked.
    Type: Grant
    Filed: July 9, 2001
    Date of Patent: October 7, 2003
    Inventor: Jean-Guy Lavergne
  • Patent number: 6526787
    Abstract: A door lock device comprised a main body, a lock bolt, a lock tongue, a spindle, and two moving collars. The spindle is connected with the lock bolt by a lock bolt transmission mechanism. The spindle is connected at one end with a lock control mechanism located in the external side of the main body. The spindle is provided at both ends with a moving collar having a retaining portion which is connected with the lock tongue by a lock tongue transmission mechanism. A rotating mechanism is disposed in the external side of the main body such that the rotating mechanism is coaxial with the lock control mechanism. The lock bolt and the lock tongue are coaxially driven.
    Type: Grant
    Filed: April 9, 2001
    Date of Patent: March 4, 2003
    Assignee: Summit Automation Co. Ltd.
    Inventor: Chen Ming-Chih
  • Patent number: 6481253
    Abstract: A door lock-and-handle assembly includes a housing receiving a latch bolt and a dead bolt, an escutcheon defining a recess and an engaging groove, a handle mounted on the escutcheon and having a driving member, a spindle coupled to the dead bolt and having a rectangular engaging portion, and a locking member received in the recess and operable to move between a locked position, where the locking member engages the driving member and the engaging groove so as to prevent turning of the handle, and an unlocked position, where the locking member disengages from the driving member and the engaging groove. The locking member is formed with an L-shaped opening having first and second rectangular spaces which cooperately define the L-shaped opening. The engaging portion of the spindle is received in the first rectangular space when the locking member is in the unlocked position, and is received in the second rectangular space when the locking member is in the locked position.
    Type: Grant
    Filed: November 15, 2001
    Date of Patent: November 19, 2002
    Inventor: Fang-Yi Fan
  • Patent number: 6389855
    Abstract: In a locking device for a door, window or the like, having a main lock box, at least one supplementary lock box, and at least one drive rod connecting the supplementary lock boxes to the main lock box, better resistance to break-ins is attained in that the supplementary lock box has a latch bolt that can be retracted freely into the latching position, wherein the latch bolt is displaceable by a spring and/or by a gear past the normal latching position into its locking position.
    Type: Grant
    Filed: March 26, 1997
    Date of Patent: May 21, 2002
    Assignee: Gretsch-Unitas GmbH Baubeschlage
    Inventors: Walter Renz, Wolfgang Röger, Thomas Henzler
  • Patent number: 6327881
    Abstract: A locking device for a door, window, or the like, has a main lock casing, at least one additional lock casing and at least one pushrod connecting the additional lock casing with the main lock casing. The additional lock casing has a retractable latch bolt, which can be freely pushed out of the latch position into the additional lock casing, which can be pushed into its locking position by means of a spring and/or a gear. The latch bolt on its side located opposite a leading incline and in the area of the latch end has a protrusion, on which a latch restoring lever acts, and the latch restoring lever has a first catch, by means of which a pushrod is taken along in the, and; one direction, a second catch, by means of which it is taken along by the pushrod in the other.
    Type: Grant
    Filed: October 26, 1998
    Date of Patent: December 11, 2001
    Assignee: Gretsch-Unitas GmbH Baubeschlage
    Inventors: Daniel Gründler, Udo Dieners
  • Patent number: 6302456
    Abstract: A latch-and-bolt lock with simultaneous actuation of the bolt and of the latch during closure, the latch and the bolt being actuated by an elastic element so as to protrude from the lock in order to engage in respective selvages of the jamb, the lock including; a sensor for detecting a closed position of a door wheron the lock is fitted, the sensor being movable at right anles to a faceplate of the lock between an external position and an internal position relative to the lock and being retained in the internal position by abutment against the doorjamb; a slider which is guided parallel to the latch; a plate for blocking the bolt, which is guided transversely to the slider; a lever which is articulated to the slider and has a first arm which is operatively associated with the sensor and a second arm which is adapted to assume a position for blocking the latch when the sensor and the latch are inside the lock, a member for the actuation of the plate being arranged on the slider and being such that when the lat
    Type: Grant
    Filed: May 8, 2000
    Date of Patent: October 16, 2001
    Assignee: Costruzioni Italiane Serrature Affini C.I.S.A. S.p.A.
    Inventor: Deo Errani
  • Patent number: 6266981
    Abstract: A lock for a door including a latch bolt and a further bolt mounted in a housing for parallel displacement relative to the housing. A bearing is fixed in place in the housing and along with a turning element and a two-armed hinged lever, also mounted to the housing operate on the latch bolt and the further bolt. The two arms of the two-armed hinged lever are pivotably connected with each other at their free ends with one of the arms receiving the fixed bearing between its ends, and with one of the arms being connected to the turning element and the other of its arms being connected to the further bolt.
    Type: Grant
    Filed: May 6, 1998
    Date of Patent: July 31, 2001
    Assignee: Gretsch-Unitas GmbH
    Inventors: Julius von Resch, Walter Renz, Daniel Gründler, Udo Dieners
  • Patent number: 6148650
    Abstract: This invention relates to a bolt unit and frame arrangement. In particular it relates to a lockable bolt unit having a slidable bolt, typically for securing two moveable panels together or for securing one moveable panel to a fixed frame.
    Type: Grant
    Filed: December 24, 1997
    Date of Patent: November 21, 2000
    Assignee: Home Doors Limited
    Inventor: Anthony Wilfred Kibble
  • Patent number: 6125670
    Abstract: A self-locking lock with a bolt, a lock swing catch and an auxiliary swing atch, in which the bolt and lock swing catch move out in a locking position in spring-loaded manner with the door closed and move out in a locking position are lockable by a slide plate, while the auxiliary swing catch pressed on a locking plate and in which the bolt, with the door open, is held back in the lock housing and is arrestable by the auxiliary swing catch by means of the slide plate. In order to provide a lock secure against manipulation and reliable in operation, where an uncontrollable extension of the bolt is particularly effectively prevented even in intermediate states of the opening and closing process, on opening the bolt leads compared with the lock swing catch and is arrestable completely retracted in the lock and the lock swing catch is provided with a widening, e.g., with a pivotable, springloaded swing catch part.
    Type: Grant
    Filed: January 20, 1998
    Date of Patent: October 3, 2000
    Assignee: eff-eff Fritz Fuss GmbH & Co., Kommanditgesellschaft auf Aktien
    Inventors: Fritz Helmut Fuss, Gerhard Gonser
  • Patent number: 5813255
    Abstract: The invention is a mortise lock constructed for very simple conversion between multiple functions and left and right hand openings. The lock can include or omit retraction of the latch bolt from either side with a key, permanent locking of either side's retractor, removal of the stopworks, simultaneous retraction of the latchbolt and deadbolt, or locking the retractor when the deadbolt is thrown. All of these conversions are accomplished without opening the case cover by the insertion or removal of screws or parts through holes in the cover or case, with the screws either stopping a part from moving or providing a catch upon which a part acts. The changeover between right and left handed openings is accomplished through the backplate with removal of only the armor plate, by removing, reversing, and reinstalling the latchbolt.
    Type: Grant
    Filed: September 25, 1996
    Date of Patent: September 29, 1998
    Assignee: PDQ Industries, Inc.
    Inventors: William Tell, III, Samuel R. Weigard
  • Patent number: 5791179
    Abstract: A motor driven locking mechanism including a door hingably coupled to a door frame at a first side edge thereof, the door having a horizontally orientated channel with a first open end situated on a second side edge of the door opposite the first side edge and a second closed end and a door knob rotatably coupled to the door about an axis which extends above and perpendicular to the channel; a first locking mechanism including a locking rod for slidably inserting within the channel, a strip gear longitudinally situated on a top edge of the locking rod, and a motor located adjacent the closed end of the channel having a rotor extending therefrom with a bevel gear coupled thereto, the bevel gear in threaded engagement with the strip gear for situating the locking rod in an extended orientation with the locking rod engaged with the door frame upon the receipt of a lock signal and a retracted orientation with the locking rod residing only within the channel upon the receipt of an unlock signal; and actuation mech
    Type: Grant
    Filed: August 8, 1996
    Date of Patent: August 11, 1998
    Inventor: James E. Brask
  • Patent number: 5782114
    Abstract: A multi-point locking system (10) has a lock case (11) with a door front edge (20), a latch (65), a blocking bolt (80) and two longitudinally movable push rods (30, 31) connected to one another by a connecting element (40) with locking elements such as eccentrically mounted roller pins (33) engaging in striking plates (34). The connecting element (40) has an engagement recess (46), is arrestable by a spring-loaded engaging element (52) against a compression spring (48) in a pretensioned opening position, and is releasable from this arrested position by direct operation of the locking elements (33) in the longitudinal direction of the door front edge. The striking plates (34) in the entry area (36) of the locking elements (33) have inclined stop surfaces (37) exerting a force (F) on the roller pins (33) in the closing direction (Y). The slidingly guided bolt (80) blocks the locking system (10) indirectly via a flexibly mounted rocker (91) using a closing element (81), for example a locking cylinder.
    Type: Grant
    Filed: November 28, 1995
    Date of Patent: July 21, 1998
    Assignee: Hoppe AG
    Inventors: Christian Zeus, Josef Mairvongrasspeinten
  • Patent number: 5301525
    Abstract: A lock, particularly a mortise lock, with bolt (9) and preferably catch (43) and a step-up lever (27) which acts on the bolt (9) and is equipped with a closure engagement opening (30) and is pivoted below the axis of rotation of the closure bit, for the closing of the bolt (9) in forward and backward direction while obtaining a lengthening of the closing stroke; in order to optimize the design, it is proposed that the path of movement of the closing engagement opening (30) extend approximately over a quarter-circle (V) of the cylindrical head (7) of a profiled-cylinder insertion opening (4).
    Type: Grant
    Filed: April 16, 1992
    Date of Patent: April 12, 1994
    Assignee: Carl Fuhr GmbH & Co.
    Inventor: Rolf Doring
  • Patent number: 5265920
    Abstract: In the case of a drive rod lock, the drive is guided in the region of the faceplate and in that a housing is mounted on the faceplate. Rotatably mounted in the housing is a handle bush and follower for moving the drive rod. This handle bush and follower assembly is pretensioned into a mid-way position and can be pivoted out of this mid-way position in opposite directions of rotation. The handle bush and follower assembly acts on a control element which is guided parallel with the drive rod and in the vicinity of a narrow side of the housing remote from the drive rod. A handle bush and follower restoring spring engages this control element. A two-armed transmission lever extends from the control element to the drive rod and is mounted in the housing between the control element and the drive rod. A clearance exists between the transmission lever and the control element.
    Type: Grant
    Filed: May 28, 1991
    Date of Patent: November 30, 1993
    Assignee: Aug. Winkaus GmbH & Co. KG
    Inventors: Ludger Kaup, Renate Berning
  • Patent number: 5083448
    Abstract: An electromechanical door lock comprises a lock body (1), in which is a dead bolt (3) which can be dead locked in its protruding position and electrically withdrawn into the lock body, a latch (4) which is spring loaded to be protruding from the lock body and which centralizes the dead bolt in an opening in a striking plate (18) arranged for the door lock, and force transmission means (8-14) for transmitting force from an electrical operating device (7) to the dead bolt (3). Said latch (4) includes in a way known as such a body member (4c) moveable inside the lock body to which is jointed a wedge-shaped member (4a, 4b), protruding at least partly out from the lock body when the latch is in the protruding position, so that the latch (4) can be pressed inside the lock body when a force acts on said wedge-shaped member (4a, 4b) from either side of the lock body in the direction of the door opening or closing.
    Type: Grant
    Filed: November 13, 1989
    Date of Patent: January 28, 1992
    Assignee: Oy Abloy Security Ltd.
    Inventors: Vesa Karkkainen, Keijo Lehikoinen
  • Patent number: 5027625
    Abstract: A lock having a lock cylinder 22, a pusher nut 8, a catch 5 and a safety bolt 4, which can be actuated by the lock cylinder 22. The catch 5 is also retractable by means of the pusher nut. A catch locking slide 35 is displaceable from a release position to a locked position by pressure on the catch. A lever system 39, 40, 41 connects the locking slide 35 with the safety bolt 4 and has a dogging portion which embraces the locking slide 35. The dogging portion is actuated into a dogging position solely by pushing in and moving out of the catch 5, without operating the lock cylinder or a pusher spindle.
    Type: Grant
    Filed: May 3, 1989
    Date of Patent: July 2, 1991
    Inventor: Theodor Krachten
  • Patent number: 4864835
    Abstract: A door latch and lock mechanism especially for storm doors and screen doors, having a latch and a lock bolt. The latch can be retracted from the outside by a button which pushes a plunger in a lengthwise direction. When the plunger is rotated in one direction it will lock the latch in the latched position and also extend the locking bolt to its locked position. When the plunger is rotated in the opposite direction, the latch is released and the bolt is retracted. The plunger is rotated in one direction or the other from the outside of the door by a key operated mechanism spaced from the push button and operatively connected to the plunger by connecting links.
    Type: Grant
    Filed: April 25, 1988
    Date of Patent: September 12, 1989
    Inventor: George Wartian
  • Patent number: 4520639
    Abstract: A latch and lock mechanism having a pivoted latch and means for retracting the latch. A dead bolt is also provided. A rotatable bolt actuator has a pin and slot connection with the bolt to move the bolt to its extended, locking position. The bolt actuator also has means for simultaneously blocking retraction of the latch to provide in effect a double dead bolt lock.
    Type: Grant
    Filed: December 6, 1982
    Date of Patent: June 4, 1985
    Assignee: Wartian Lock Co.
    Inventor: George Wartian
  • Patent number: 4418552
    Abstract: Extending a dead bolt into a locked position turns a crank that releases a lock release plate from an unlocked position which in turn releases a slide. Upon its release, the slide responds to springs and forces a tooth into a notch of an actuator to lock a latch bolt. To unlock the latch bolt and the dead bolt, the dead bolt can be directly retracted, whereupon the crank engages the lock release plate to move it back to its unlocked position. The lock release plate during this travel picks up the slide and withdraws the tooth from the actuator, freeing the latch bolt assembly. When locked, the latch bolt and the dead bolt can be simultaneously unlocked by rotation of an inside operator which produces rotation of a double-lobed cam. One lobe of the cam moves the slide against the force of the springs sufficiently to clear the tooth from the actuator.
    Type: Grant
    Filed: July 1, 1981
    Date of Patent: December 6, 1983
    Inventor: Roger J. Nolin
  • Patent number: 4276760
    Abstract: A two-bolt lockset simultaneously locks and unlocks in response to a single action by an operator, such as a key and cylinder. A deadbolt couples to such an operator to project and lock or retract and unlock. A crank also responds to the locking of the deadbolt to move a slide that engages and locks an actuator of the second bolt, a latch bolt, to lock the latch bolt. The slide is biased away from the latch bolt so that upon retraction of the deadbolt and corresponding motion of the crank, the slide is freed of the crank and moves out of engagement with the actuator. Preferably, the slide is carried by a retractor so that both locks clear by the single turn of a single inside operator. The retractor responds to a retractor cam attached to the inside operator to translate. The slide moves out of engagement with the actuator upon such movement and forces the crank to withdraw the deadbolt.
    Type: Grant
    Filed: October 22, 1979
    Date of Patent: July 7, 1981
    Inventor: Roger J. Nolin