Emergency Exit Patents (Class 70/92)
  • Patent number: 10945429
    Abstract: A freezer includes a plurality of shelves in an insulated payload bay; a plurality of evaporators coupled to the payload bay with a multiplicity of coolant tubes in each evaporator, wherein each tube enters and then exits the payload bay, further comprising one or more cryogenic valves coupled to the coolant tubes; a pump to force coolant flowing through the evaporators with a pressure of at least 90 psi to supply the coolant at each evaporator with at least 80 gallons per hour of coolant; and a plurality of fans to circulate cooled air in the payload bay.
    Type: Grant
    Filed: April 17, 2020
    Date of Patent: March 16, 2021
    Assignee: Reflect Scientific Inc.
    Inventors: William G. Moon, William J. Hancock, Steven V. Boyce, Steven J. Parkinson
  • Patent number: 10660328
    Abstract: A freezer includes a plurality of shelves in an insulated payload bay; a plurality of evaporators coupled to the payload bay with a multiplicity of coolant tubes in each evaporator, wherein each tube enters and then exits the payload bay, further comprising one or more cryogenic valves coupled to the coolant tubes; a pump to force coolant flowing through the evaporators with a pressure of at least 90 psi to supply the coolant at each evaporator with at least 80 gallons per hour of coolant; and a plurality of fans to circulate cooled air in the payload bay.
    Type: Grant
    Filed: August 25, 2018
    Date of Patent: May 26, 2020
    Assignee: Reflect Scientific, Inc.
    Inventor: Bao Tran
  • Patent number: 10060158
    Abstract: An exit device employs a pair of projectable latches which are retractable by depressing a push pad. A latch actuator is mounted between the latches and is actuatable to retract the latches. In one embodiment, the actuator comprises a pair of solenoids controlled from a remote location. In another embodiment, the actuator comprises a motor which is activatable from a remote location for unlatching the door. In addition an exterior operator is mountable and connectable to the latch actuator to provide controlled access from the exterior of the door.
    Type: Grant
    Filed: October 24, 2014
    Date of Patent: August 28, 2018
    Inventors: George Frolov, James J. Scott
  • Patent number: 9353547
    Abstract: An outer operating device for a door lock includes a mounting plate mounted to an outer side of a door. A driving wheel is pivotably mounted in a mounting seat fixed to the mounting plate. A driving member is pivotably mounted in the mounting seat and meshes with the driving wheel. A distal end of the driving member is operably connected to a latch of a latch device. A handle is pivotably mounted to the mounting seat and includes a lever. A movable block is slideably received in the driving wheel and includes a notch. When a pressing end of the lever is not aligned with the notch of the movable block, the latch can be retracted to an unlatching position by pivoting the handle. When the notch is aligned with the notch of the movable block, the latch cannot be retracted by pivoting the handle.
    Type: Grant
    Filed: October 7, 2014
    Date of Patent: May 31, 2016
    Assignee: I-Tek Metal Mfg. Co., Ltd
    Inventor: Hung-Jen Tien
  • Patent number: 9003843
    Abstract: Disclosed in one aspect is the fixed door pull handle assembly that includes an elongated door pull handle with two or more support standoffs projecting away from the elongated door pull handle and securing the elongated door pull handle to the doorframe or to the body of the door. One of the support standoffs is user rotatable, and rotatably engages a door latch assembly within the door. In another aspect, the support standoff is not user rotatable. Instead, a center-pivoting handle is mounted in-line with one of the support standoffs and rotatably engages the door latch assembly within the door. The center-pivoting handle is recessed within the elongated handle.
    Type: Grant
    Filed: June 14, 2013
    Date of Patent: April 14, 2015
    Inventor: Gregory Header
  • Patent number: 8978305
    Abstract: A retractor element includes a rigid slide connected between a latch bolt and a solenoid plunger for movement between a first position and a second position, the slide operably connected to plunger. A pivoting link defines a slot having an inner end portion extending transversely, the slot configured for pivoting the link when the slide moves between the first position and the second position of the slide. When the retracting mechanism is energized the plunger retracts causing movement of the slide to the second position of slide and the pin to enter the transverse end of the slot in the link. A bearing surface intersects the path of movement of the pin such that significantly less current is required for retaining the plunger in the retracted position than to retract the plunger for blocking the return of the latch bolt to the projected position.
    Type: Grant
    Filed: October 18, 2013
    Date of Patent: March 17, 2015
    Assignee: Yale Security Inc.
    Inventors: Scott G. Morstatt, Jeffrey Sharps, Anthony Benitez
  • Patent number: 8915523
    Abstract: An apparatus provided for releasing the dogging function of a panic device for an exit door without the use of a key or other external device includes an end cap button; an adjustable connecting rod assembly; and a modified latch plate; Depressing the end cap button pushes the rod assembly to rotate the modified latch plate to release the dogging function of the panic device.
    Type: Grant
    Filed: October 3, 2011
    Date of Patent: December 23, 2014
    Inventors: Scott Christopher Tillman, Jeffrey Edward Bensinger
  • Patent number: 8851530
    Abstract: An electric latch retraction device comprising a housing for receiving a plurality of internal components of the electric latch retraction device. An actuator mechanism is included in the housing, the actuator mechanism is adapted to impart linear movement on a latch, such that the latch is retracted towards the housing. A holding mechanism is also included in the housing, the holding mechanism holds the latch in a fully retracted position.
    Type: Grant
    Filed: November 11, 2009
    Date of Patent: October 7, 2014
    Assignee: 1 Adolfo, LLC
    Inventors: Arthur V. Geringer, David A. Geringer, Richard Geringer
  • Patent number: 8826705
    Abstract: An outer operational device (13) for a door lock includes cover (20) receiving a sliding block (511) and a handle (197) operatively connected to the sliding block (511). The sliding block (511) includes a sliding groove (525) having a horizontal section (528) slideably receiving a locking member (541). A driving member (44) is fixed to a connection member (595) in the cover (20) and is operatively connected to a latch (124). When the locking member (541) is in a first position, pivotal movement of the handle (197) drives the sliding block (511) to actuate the connection member (595) and the driving member (44) to retract the latch (124). When the locking member (541) is in the second position, the sliding block (511) is moved without actuating the connection member (595) when handle (197) is pivoted, and the latch (124) remains in the latching position.
    Type: Grant
    Filed: December 19, 2012
    Date of Patent: September 9, 2014
    Assignee: I-Tek Metal Mfg. Co., Ltd.
    Inventor: Hung-Jen Tien
  • Publication number: 20140102155
    Abstract: A door lock (3) includes a latch device (30) and an inner operational device (20) mounted to a first side (1A) of a door (1) and an outer operational device (16) mounted to a second side (1B) of the door (1). The inner and outer operational devices (20, 16) can be operated to retract a latch (38) of a latch device (30) from an extended, latching position to a retracted, unlatching position. A tooth (223) on an actuator (219) of the outer operational device (16) breaks if a large force is applied to a handle (197). A spindle (191) pivots freely without moving the latch (38), preventing damage to components of the outer operational device (16) and the latch device (30). A base (811) of the latch device (30) can be comprised of first, second, and third plates (813, 847, 883) to allow sheet metal processing without sacrificing structural strength.
    Type: Application
    Filed: October 17, 2012
    Publication date: April 17, 2014
    Inventor: Chung-Liang Lin
  • Patent number: 8590948
    Abstract: An outer operational device includes a cover mounted to an outer side of a door. The outer operational device includes a handle and an actuating member operatively connected between the handle and a latch. A sliding block is movable between an alignment position and an alignment position under control of a driving device through electrification. When the sliding block is in the engagement position, a locking block locks the actuating member to prevent rotation of the handle, and the outer operational device is in a locked state avoiding retraction of the latch. When the sliding block is in the disengagement position, the sliding block allows rotation of the actuating member and the handle, and the outer operational device is in an unlocked state allowing retraction of the latch.
    Type: Grant
    Filed: January 12, 2011
    Date of Patent: November 26, 2013
    Assignee: I-Tek Metal Mfg. Co., Ltd
    Inventor: Chun-Meng Shen
  • Patent number: 8590350
    Abstract: A locking mechanism for the situation-dependent authorized admission or access to any casing and the protection of the casing against misuse of its contents is disclosed. The locking mechanism comprises at least one rotatable locking member (1) and at least one latch member (2) which can be unlocked by the rotatable locking member (1). In case of an emergency the latch member (2) is accessible also through a breakable barrier (3) and can be manually moved after the barrier (3) has been irreversibly destroyed.
    Type: Grant
    Filed: March 3, 2011
    Date of Patent: November 26, 2013
    Assignee: medic assist GmbH & Co. KG
    Inventor: David G. Clausen
  • Patent number: 8528946
    Abstract: A door lock (2) includes a linking rod (730) movable in an unlatching direction for moving a latch (38) to an unlatching position and movable in a latching direction for moving the latch (38) to a latching position. When a draw bar (640) is in an extended position and when an operative member (688) is operated, a follower plate (482) and the connecting rod (730) are moved in the unlatching direction through a connecting member (498) and a connecting rod (512). When the draw bar (640) is in a retracted position and when the operative member (688) is operated, the connecting member (498) and the connecting rod (512) are moved in the unlatching direction. Movement of the follower plate (482) in the unlatching direction is stopped by a stop member (668), preventing movement of the linking rod (730) in the unlatching direction and retaining the latch (38) in the latching position.
    Type: Grant
    Filed: June 28, 2011
    Date of Patent: September 10, 2013
    Assignee: I-Tek Metal Mfg. Co., Ltd.
    Inventor: Chun-Meng Shen
  • Publication number: 20130192315
    Abstract: A lock, which is designed as a panic lock for a door of freezing room, includes a chassis (1, 2) and a latch bolt (3), which is displaceably guided into the chassis, impinged upon by a spring force in the direction of extension and beveled at least on one side. A two-part nut is rotationally mounted inside the lock. The inside part is able to be actuated by an inner operating lever, including an inner catch which enables the latch bolt (3) to be actuated at least in the insertion direction. An outer nut part (7), which can be actuated by an outer operating lever, includes an outer catch (10) enabling the latch bolt (3) to be actuated in the insertion and extraction direction. When the operating lever is not actuated, structure (15, 16) places the catch (10) of the nut part (7) in a neutral position in which the catch (10) is not in contact with the latch bolt (3). Structure (21-24) are also provided for locking the outer catch (10) in the neutral position thereof.
    Type: Application
    Filed: October 10, 2011
    Publication date: August 1, 2013
    Inventor: Wilhelm Dück
  • Patent number: 8474290
    Abstract: An improved locking handle and power module assembly provides continued ability to open and close a truck cap or tonneau cover from within or without, and presents an enclosed mechanism to prevent obstruction or jamming. A release handle is provided to permit unlatching of a latch mechanism operated by the locking handle without regard to whether the locking handle is locked or not.
    Type: Grant
    Filed: December 3, 2009
    Date of Patent: July 2, 2013
    Assignee: PiOptima, Inc.
    Inventors: David Lee Terhaar, David Jay Terhaar
  • Patent number: 8424928
    Abstract: A door handle assembly includes a lock casing having an inner cam and an outer cam and a latch bolt, an indoor handle device attached to an inner portion of the lock casing with an actuating device and having a handgrip for being depressed to actuate an actuating bolt and the inner cam to operate the latch bolt, and an outdoor handle device attached to an outer portion of the lock casing with another actuating device and having another handgrip for being pulled to actuate another actuating bolt and the outer cam to operate the latch bolt, the outdoor handle device and indoor handle device are replaceable with each other when the actuating devices are disposed up-side-down.
    Type: Grant
    Filed: September 24, 2010
    Date of Patent: April 23, 2013
    Assignee: Thase Enterprise Co., Ltd.
    Inventor: Ching Tien Lin
  • Patent number: 8240177
    Abstract: A door handle assembly that can be locked and unlocked using a key. The door handle assembly includes a bolt that is movable from an extended position to a retracted position. The first handle is coupled to the bolt and adapted to cause the bolt to retract when the first handle is pushed. A second handle is coupled to the bolt and adapted to cause the bolt to retract when the second handle is pulled. A key locking mechanism is coupled to the first handle. The key locking mechanism is adapted to selectively prevent the bolt from moving to the retracted position. A safety locking mechanism is coupled to the second handle. The safety locking mechanism is adapted to selectively prevent the bolt from moving to the retracted position.
    Type: Grant
    Filed: May 13, 2009
    Date of Patent: August 14, 2012
    Inventor: Owen R. Baser
  • Patent number: 8201857
    Abstract: A door lock includes a bracket fixed to a door. An engaging member is pivotably mounted to the bracket. A draw member includes a first end pivotably connected to the engaging member and a second end operably connected to a retractor. A linking rod is connected between the draw member and an operative member mounted to the door such that operation of the operative member causes movement of the linking rod and pivotal movement of the draw member, which in turn, urges the retractor to move a latch bolt from an extended position to a retracted position. A follower is coupled to the first end of draw member to move therewith. An adjusting member is in threading connection with the follower and rotatable to move the follower relative to the engaging member to adjust a position of the second end of the draw member relative to the retractor.
    Type: Grant
    Filed: March 30, 2010
    Date of Patent: June 19, 2012
    Assignee: I-Tek Metal Mfg. Co., Ltd.
    Inventor: Hung-Jen Tien
  • Patent number: 8070192
    Abstract: A dogging device includes a base mounted in a housing of a latch assembly. The base includes a hole through which a shaft rotatably extends. A limiting keyway extends from the hole and receives and limits rotation of a shaft key on the shaft. A dogging member includes a through-hole receiving the shaft. A keyway extends from the through-hole and receives the shaft key of the shaft, allowing joint rotation of the shaft and the dogging member. By engaging a tool with a driving groove in an end of the shaft or by utilizing a lock core key to turn a lock core that directly pivots the dogging member, the dogging member is pivotable between a first position engaged with a latching/unlatching control rod of the latch assembly to lock a latch bolt in a retracted state and a second position disengaged from the latching/unlatching control rod.
    Type: Grant
    Filed: January 3, 2008
    Date of Patent: December 6, 2011
    Assignee: I-Tek Metal Mfg. Co., Ltd.
    Inventor: Hung-Jen Tien
  • Patent number: 8033516
    Abstract: A device suitable for tiltably mounting a display screen on a wall. The device comprises a wall member to be mounted on a wall, as well as a support member, to which the display screen is to be connected. The support member is connected to the wall member, being tiltable about a tilt axis. The device further comprises a pivotable connecting arm, which connects the wall member and the support member at a point spaced from the tilt axis. The connecting arm can be connected to one of a number of angle setting recesses for setting a desired angle of tilt between the support member and the wall member. The device comprises a slide which is movable relative to the wall member and the support member, which slide is provided with a number of recesses.
    Type: Grant
    Filed: July 20, 2009
    Date of Patent: October 11, 2011
    Assignee: Vogel's Holding B.V.
    Inventors: Stefan Arthur Luijben, Paul Robbert Grolle
  • Publication number: 20110239712
    Abstract: A door lock includes a bracket fixed to a door. An engaging member is pivotably mounted to the bracket. A draw member includes a first end pivotably connected to the engaging member and a second end operably connected to a retractor. A linking rod is connected between the draw member and an operative member mounted to the door such that operation of the operative member causes movement of the linking rod and pivotal movement of the draw member, which in turn, urges the retractor to move a latch bolt from an extended position to a retracted position. A follower is coupled to the first end of draw member to move therewith. An adjusting member is in threading connection with the follower and rotatable to move the follower relative to the engaging member to adjust a position of the second end of the draw member relative to the retractor.
    Type: Application
    Filed: March 30, 2010
    Publication date: October 6, 2011
    Inventor: Hung-Jen Tien
  • Patent number: 8011702
    Abstract: An outer operational device includes a cover mounted to a side of a door. An actuating member is mounted in the cover and includes an end engaged with a handle to rotate therewith. A sliding member is slideably received in the cover and operably connected to the actuating member, so that the sliding member slides when the actuating member rotates. A limiting member is pivotably received in the cover between a blocking position not allowing movement of the sliding member and a release position allowing movement of the sliding member. The handle is rotatable when the limiting member is in the release position. The handle is not rotatable when the limiting member is in the blocking position. A key-operable lock core is operably connected to the actuating member, so that the limiting member can be moved to the blocking position to provide a burglarproof function.
    Type: Grant
    Filed: November 4, 2008
    Date of Patent: September 6, 2011
    Assignee: I-Tek Metal Mfg. Co., Ltd.
    Inventors: Hung-Jen Tien, Chen-Wei Huang
  • Publication number: 20110192201
    Abstract: An operating device for a lock includes a mounting plate mounted to an outer side of a door. A frame is fixed in a receiving space of the door. A push member includes a push section operably connected to a latch. The push member further includes a pivotal section having a pivot hole and a sliding groove. A first pivot extends through the pivot hole of the pivotal section and the frame. A second pivot extends through the frame and is slideably received in the sliding groove of the pivotal section. A lever includes a lug received in the receiving space. The lug has a pin hole through which the second pivot extends. When the lever pivots from an upper position to a lower position about a pivot axis defined by the second pivot, the push member pivots about a pivot axis defined by the first pivot for unlocking operation.
    Type: Application
    Filed: February 9, 2010
    Publication date: August 11, 2011
    Inventor: Hsi-Ting Lin
  • Publication number: 20110088322
    Abstract: In one embodiment, a closure assembly for a fire door, including a first lead post having a longitudinal cavity located therein, an opening extending through a wall of the first lead post into the longitudinal cavity and a locking member may be positioned within the longitudinal cavity that is configured to obstruct the opening into the longitudinal cavity upon reaching a predetermined temperature, is disclosed. In additional embodiments, fire doors including such closure assemblies and methods of locking fire doors are disclosed.
    Type: Application
    Filed: October 21, 2009
    Publication date: April 21, 2011
    Applicant: WON-DOOR CORPORATION
    Inventors: W. Michael Coleman, Duane O. Hall, E. Carl Goodman, Michael D. George, D. George Field
  • Patent number: 7926315
    Abstract: An anti-panic lock assembly for a door and associated methods are provided. The lock assembly can be used to secure the door to a keeper structure mounted in a jamb of a door frame so that the assembly can be adjusted by first and second handles extending from the opposite sides of the door. The lock assembly generally includes a latch assembly with a latch member and a deadbolt assembly with a deadbolt member for engaging the keeper structure. The latch member is configured to be adjusted by a rotation of the handles between its extended and retracted positions. The deadbolt member is configured to be adjusted by a rotation of a deadbolt handle and a key lock mechanism between its extended and retracted positions. The assembly can be installed to provide an anti-panic feature from a select side of the door, by using a selective connection feature to selectively link one of the handles to the deadbolt assembly.
    Type: Grant
    Filed: September 19, 2007
    Date of Patent: April 19, 2011
    Assignee: Imperial USA, Ltd
    Inventor: Angelo Poletti
  • Patent number: 7883123
    Abstract: 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 actuator to retract and hold the push rail and the latch bolt in the unlatched position. The linear actuator preferably includes a stepping motor and is connected to the push rail through a lost motion connection allowing the exit device to be mechanically operated without moving the linear actuator. The control circuit preferably includes an electrical adjustment for the retraction distance of the latch bolt and an adjustable relatch timer. The exit device may be operated by a remote switch attached to a control connection, which may be permanently closed to simulate a prior art electrically operated exit device for compatibility with third party control systems.
    Type: Grant
    Filed: January 28, 2009
    Date of Patent: February 8, 2011
    Assignee: Sargent Manufacturing Company
    Inventors: Mark A. Condo, Darren C. Eller, Jon Hulse, Kosta G. Karachristos, Dale D. Martin, Brett E. Tannone
  • Patent number: 7849718
    Abstract: A deadbolt device for a door is disclosed that has a linkage assembly enclosed within a handle. The linkage assembly extends from a first end to a second end and is moveable from a locked position to an unlocked position. A lock housing extends through the door and includes a guide channel that extends from an interior side of the lock housing to an exterior side of the lock housing. A locking member, at least a portion of which is in the guide channel, is operatively connected to the linkage assembly and is moveable from a locked position to an unlocked position, which correspond to those of the linkage assembly. A biasing mechanism is operatively connected to the locking member and biases the locking member to its locked position. A dogging member is moveably connected to the lock housing such that the dogging member can move from an undogged to a dogged position.
    Type: Grant
    Filed: November 6, 2007
    Date of Patent: December 14, 2010
    Assignee: C.R. Laurence Company, Inc.
    Inventor: Timothy Ambrass
  • Patent number: 7832778
    Abstract: A touch bar (24) exit device (20) comprises a retractor element (50) disposed in the housing (22) for substantially restilinear movement. The retractor element (50) connects the touch bar (24) and the latch bolt (82) such that the retractor element (50) and the latch bolt (82) are moved toward the retracted position in response to movement of the touch bar (24). An electrically energizable locking mechanism (104) in the exit device (20) includes a reciprocating plunger (106) moving transverse to the retractor element (50). When energized, the locking mechanism (104) is operative to move the plunger (106) to the projected locking position to prevent retraction of the latch bolt. A time delay circuit is connected to the locking mechanism (104). A switch (120) actuated in response to movement of the touch bar (24) is connected to the time delay circuit for starting a predetermined time interval for temporarily delaying deenergization of the locking mechanism (104).
    Type: Grant
    Filed: December 2, 2008
    Date of Patent: November 16, 2010
    Assignee: Yale Security Inc.
    Inventors: Andrew Whitaker, John Steven Gray, Larry R. Hunt, Sidney J. Lampley, Michael L. Ensley
  • Patent number: 7832777
    Abstract: A lock assembly for use with a door movably coupled to a door frame. The lock assembly includes a housing, a control member, a latchbolt, and a locking member. The control member is movably coupled to the housing from a locked position to an unlocked position to allow the door to move with respect to the door frame. The latchbolt moves with respect to the housing in a first direction and a second direction. The locking member is configured for engagement with the control member to move the locking member with respect to the housing into and out of an engaged position with respect to the latchbolt. The locking member includes a surface that contacts the latchbolt when the locking member is in the engaged position to substantially prevent movement of the latchbolt in the first and second directions.
    Type: Grant
    Filed: April 5, 2006
    Date of Patent: November 16, 2010
    Assignee: Von Duprin, Inc.
    Inventors: Russell A. Banks, Bradley W. Trent
  • Patent number: 7818984
    Abstract: An electronic door locking apparatus having a mortise lock including dead bolt and latch bolt installed therein, which is able to easily open a door from the outside by inserting a metal card having a magnet installed inside if a power source such as a dry battery is not supplied or if the locking apparatus is not useable due to other mechanical defects, and also able to perform a lock function since a dead bolt is locked if a door handle of an outer unit is rotated upwards when there are defects in a driving motor or electronic components.
    Type: Grant
    Filed: May 25, 2007
    Date of Patent: October 26, 2010
    Assignee: Keicho Hightech, Inc.
    Inventor: Moon Sung Hwang
  • Patent number: 7748757
    Abstract: A connecting device (40) for a concealed-type latch of a lock for a panic exit door includes a connecting member (46) having an end (464) operably coupled to a latch (128). A draw rod (48) includes an end (484) pivotably coupled to the other end (462) of the connecting member (46) and pivotable between a first position parallel to the connecting member (46) and a second position perpendicular to the connecting member (46). The connecting device (40) can be installed via an end opening (104) in a top or bottom edge of a door (10) into an interior space (102) of the door (10) with the draw rod (48) in the first position. When the draw rod (48) reaches a side opening (106) of the door (10), it is pivoted to the second position for coupling with a follower device (30) of the lock.
    Type: Grant
    Filed: September 17, 2008
    Date of Patent: July 6, 2010
    Assignee: I-Tek Metal Mfg. Co. Ltd.
    Inventor: Chun-Meng Shen
  • Patent number: 7731248
    Abstract: Anti-panic control device for doors, comprising, a base structure, a spring latch mounted rotatable relative to the base structure around a main axis, the spring latch being able to rotate between a closed position and an open position and being associated to an elastic element which tends to maintain the spring latch in the open position, the spring latch having a slit able to receive a retaining element.
    Type: Grant
    Filed: September 29, 2006
    Date of Patent: June 8, 2010
    Assignee: Savio SpA
    Inventor: Aimone Balbo Di Vinadio
  • Publication number: 20100126239
    Abstract: A lever latch lock assembly including: a. a lock housing mounted in the door including a lock bolt movable along a first axis, a spindle extending along a second axis generally perpendicular to the first axis, the spindle extending outward at each of the interior and exterior sides of the housing and terminating in opposite ends, and a transmission which converts rotation of the spindle to axial motion the lock bolt, b.
    Type: Application
    Filed: November 2, 2009
    Publication date: May 27, 2010
    Inventor: Mark J. Berger
  • Patent number: 7722096
    Abstract: A latchbolt configured for use with a door lock assembly. The door lock assembly is configured for interaction with a strike coupled to a door frame, and operable to place the latchbolt in a locked configuration using the strike to generally prevent rotation of the door and an unlocked configuration to allow rotation of the door. The latchbolt includes a first member and a second member movably coupled to the first member. When the latchbolt is in the locked configuration the second member is movable relative to the first member from a first position to a second position in response to a predetermined force applied to the door.
    Type: Grant
    Filed: April 5, 2006
    Date of Patent: May 25, 2010
    Assignee: Von Duprin, Inc.
    Inventors: Paul R. Arlinghaus, Bradley W. Trent, Rick L. Brennaman, James W. Overbey, Kenneth P. Cook, Russell A. Banks, Michael D. Coleman
  • Publication number: 20100043505
    Abstract: A latch device (30) for a door lock includes a latch (38) pivotable between an extended, locking position and a retracted, unlocking position upon operation of a linking rod (37). A liming block (36) is coupled with the linking rod (37) and movable between a locking position not allowing direct pivotal movement of the latch (38) from the extended position to the retracted position and an unlocking position allowing pivotal movement of the latch (38) from the extended position to the retracted position. When the door is closed, the locking member (36) is moved by gravitational force to a locking position. Movement of the linking rod (37) in an unlatching position through an idle travel moves the locking member (36) from the locking position to the unlocking position without moving the latch (38). Further movement of the linking rod (37) in the unlatching position causes pivotal movement of the latch (38) from the extended position to the retracted position.
    Type: Application
    Filed: August 20, 2008
    Publication date: February 25, 2010
    Inventor: Hung-Jen Tien
  • Patent number: 7634927
    Abstract: A panic exit door lock includes a cover (20) mounted to an outer side (10b) of a door (10). A sliding member (34) is slideably received in the cover (20) and operably connected to a latch (12). A handle (24) is pivotably mounted to the cover (20) and operably connected to the sliding member (34) such that rotation of the handle (24) causes sliding of the sliding member (34) to move the latch between an extended position and a retracted position. A limiting member (32) is pivotably received in the cover (20) between a blocking position not allowing movement of the sliding member (34) and a release position allowing movement of the sliding member (34). An inner lock core (54) and an outer lock core (270) are respectively mounted to an inner side (10a) and the outer side (10b) of the door (10). Either of the inner and outer lock cores (54, 270) can be rotated by a key to move the limiting member (32) between the blocking position and the release position.
    Type: Grant
    Filed: February 4, 2009
    Date of Patent: December 22, 2009
    Assignee: I-Tek Metal Mfg. Co., Ltd.
    Inventor: Hung-Jen Tien
  • Publication number: 20090183538
    Abstract: An fireproof door lock comprises a handle seat frame being a U shape frame; a press unit installed in the U shape frame of the handle seat frame; the press unit having a driven mechanism; the driven mechanism including a driven unit; a plurality of buckling units, an elastic unit, at least one vibration reduction element, at least one driving bodies, a bottom plate and a pin unit; a press element having an L shape and being attached to the driving body by using a plurality of studs passing through a connecting unit, the press element and a driving unit; and fireproof door lock installed at a front end of the fireproof door lock; so that the driven mechanism of the press unit having the effect of opening the fireproof door look.
    Type: Application
    Filed: January 20, 2008
    Publication date: July 23, 2009
    Inventor: Fu-Chang PENG
  • Publication number: 20090139283
    Abstract: A hidden lock locked to an inner side of a doorplate comprises a top seat assembly; a top rod; the top seat assembly being assembled to the top rod; a linking rod installed to a lower side of the top rod; a lower rod; a lower head; a top seat assembly; a resisting unit. The connecting shaft having a groove, plurality of slots, a plurality of holes, an upper engaging tube and a lower engaging tube. A bent stop is extended from the resisting unit. When a top rod reduces inwards, the stop will resist against a neck of the top rod to prevent a lower head to contact the ground. A pin device is installed for retaining the lock in high temperature.
    Type: Application
    Filed: December 3, 2007
    Publication date: June 4, 2009
    Inventor: Fu-Chang Peng
  • Patent number: 7536885
    Abstract: A door exit device, security system, and method for implementing a delayed egress operating mode and an authorized access operating mode to control access through a door. In one embodiment, the exit device includes an egress enable mechanism including a latch retraction assembly operatively coupled between a push pad and a door latch. The latch retraction assembly retracts the door latch responsive to manual actuation of the push pad. The exit device further includes a delayed egress device having a latch retraction lock that is operatively coupled to the latch retraction assembly to prevent the latch retraction assembly from retracting the door latch coincident with an attempted manual actuation of the push pad. The exit device further includes an access enable device operatively coupled to actuate the latch retraction assembly in response to an authorized access signal.
    Type: Grant
    Filed: February 17, 2006
    Date of Patent: May 26, 2009
    Assignee: Detex Corporation
    Inventors: Russell H. Ross, Paul J. Haeck, Timothy C. Maleck
  • Patent number: 7484390
    Abstract: A lockable strike for walk-in cold rooms includes a housing that includes a recessed well with openings positioned on opposing sides thereof to accept a locking device therethrough and a deadbolt moveably engaged therein to reciprocally move along a path of travel between an extended position and a retracted position with respect to the housing; and a knob rotatably mounted within the recessed well and having an opening through a handle thereof positioned relative to the openings in the housing to further accept the locking device therethrough thereby preventing the rotation of the knob in a first position, wherein the handle can engage the locking device when it is inserted through the openings in the housing thereby preventing the rotation of the knob in a second position, and the knob is in communication with the deadbolt to move the deadbolt between the extended position and the retracted position when the knob is rotated.
    Type: Grant
    Filed: March 28, 2007
    Date of Patent: February 3, 2009
    Assignee: Kason Industries, Inc.
    Inventors: Burl M. Finkelstein, Brett A. Mitchell, Raymond J. Hiller
  • Patent number: 7484391
    Abstract: A door lock system for enclosures is provided which includes a screw drive mechanism releasably mounted on a back plate member and coupled via threads to a threaded locking member to linearly drive the locking member to engage with a receptor on an enclosure frame to lock the enclosure. A controller unit has an integrated circuit configured to control the operation of the screw drive mechanism and report the status of the door to a central location. A position switch is used to indicate whether the door is open or closed so that the controller unit can automatically engage the screw drive mechanism to lock the door after a preset time delay. A keypad allows a user to enter a code to unlock the door. A radio in the controller unit permits wireless communication to report status and to allow central command control over the doors.
    Type: Grant
    Filed: June 18, 2005
    Date of Patent: February 3, 2009
    Inventor: Gregory B. Moore
  • Patent number: 7484777
    Abstract: 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 actuator to retract and hold the push rail and the latch bolt in the unlatched position. The linear actuator preferably includes a stepping motor and is connected to the push rail through a lost motion connection allowing the exit device to be mechanically operated without moving the linear actuator. The control circuit preferably includes an electrical adjustment for the retraction distance of the latch bolt and an adjustable relatch timer. The exit device may be operated by a remote switch attached to a control connection, which may be permanently closed to simulate a prior art electrically operated exit device for compatibility with third party control systems.
    Type: Grant
    Filed: June 30, 2006
    Date of Patent: February 3, 2009
    Assignee: Sargent Manufacturing Company
    Inventors: Mark A. Condo, Darren C. Eller, Jon Hulse, Kosta G. Karachristos, Dale Martin, Brett E. Tannone
  • Patent number: 7469942
    Abstract: A touch bar (24) exit device (20) comprises a retractor element (50) disposed in the housing (22) for substantially restilinear movement. The retractor element (50) connects the touch bar (24) and the latch bolt (82) such that the retractor element (50) and the latch bolt (82) are moved toward the retracted position in response to movement of the touch bar (24). An electrically energizable locking mechanism (104) in the exit device (20) includes a reciprocating plunger (106) moving transverse to the retractor element (50). When energized, the locking mechanism (104) is operative to move the plunger (106) to the projected locking position to prevent retraction of the latch bolt. A time delay circuit is connected to the locking mechanism (104). A switch (120) actuated in response to movement of the touch bar (24) is connected to the time delay circuit for starting a predetermined time interval for temporarily delaying deenergization of the locking mechanism (104).
    Type: Grant
    Filed: September 30, 2002
    Date of Patent: December 30, 2008
    Assignee: Yale Security Inc.
    Inventors: Andrew Whitaker, J. Steven Gray, Sidney J. Lampley, Michael Ensley, Larry R. Hunt
  • Publication number: 20080256995
    Abstract: An unlock transmission mechanism for escape doors is disclosed, including a base, a transmission member, a first drive unit and a second drive unit, wherein the transmission member, the first drive unit and second drive unit are all disposed on the base, and the transmission member is actuated to move relative to the first drive unit and the second drive unit, respectively. In the case that the unlock transmission mechanism is to be installed in an escape door that has a different installation orientation, the transmission member and the first drive unit provided therein have the characteristics of multi-directional changeability, thereby enabling flexible installation of the escape door lock and eliminating the necessity to replace an existing door handle mechanism as encountered in the prior art.
    Type: Application
    Filed: November 20, 2007
    Publication date: October 23, 2008
    Applicant: Thase Enterprise Co., Ltd.
    Inventor: Ching-Tien Lin
  • Patent number: 7424814
    Abstract: A dead bolt lock system having one or more security locks in conjunction with a dead bolt to provide various levels of security access to a door. An inertia assembly restrains movement of the dead bolt when a shock load is applied to the door, but allows the dead bolt to move when a shock load is not present. The inertia assembly includes an actuator weight and a bolt lock lever that can translate and rotate in response to the application of the shock load. In addition, the inertia assembly includes a return spring that biases the inertia assembly back into its original position for facilitating movement of the dead bolt after the application of the shock load.
    Type: Grant
    Filed: December 22, 2005
    Date of Patent: September 16, 2008
    Assignee: Lockmasters, Inc.
    Inventor: Thomas E. Jasper
  • Publication number: 20080115543
    Abstract: A system for use with a emergency exit door, comprising: a door opener including a stationary actuator with a movable distal arm for pushing the door open; a door strike mountable to a door frame having an opening to receive a latch of the emergency exit door, the electric door strike including a gate having a locked condition and a release condition; a controller connected to the door opener and the door strike; a remote activator having a triggered condition, which provides a signal to the controller when the remote activator is triggered, to unlock the gate and then the door opener, to open the emergency exit door.
    Type: Application
    Filed: November 17, 2006
    Publication date: May 22, 2008
    Inventors: William P. Lanigan, John J. Wepfer, Maciej Labowicz, Gary A. Naese, Gerald F. Chalko
  • Publication number: 20080016923
    Abstract: A magnetic lock structure is disclosed. The lock comprises a metallic plate mounted at the edge of a door panel; a lock body mounted within the door frame of the door panel at a position corresponding to the metallic plate, and at least one end of the lock body being a control section interiorly mounted with a video lense, and the lock body generates a magnetic force when the door panel is closed to attract the metallic plate and if the door opened, the video lense is triggered to monitor the surrounding of the door.
    Type: Application
    Filed: May 25, 2006
    Publication date: January 24, 2008
    Inventor: Chun-Hong ZHENG
  • Patent number: 7249477
    Abstract: A control assembly configured for a narrow stile door and for interaction with an exit device. The control assembly provides a means to translate user input, such as rotating a lever to operate a centercase. The control includes a slider for sliding movement within a housing between a first position extending a latchbolt of the exit device and a second position withdrawing the latchbolt. The control assembly configuration incorporates a swivel locking latch rotatable into the path of the slider to prevent the slider from moving out of the first position.
    Type: Grant
    Filed: July 15, 2005
    Date of Patent: July 31, 2007
    Assignee: Von Duprin, Inc.
    Inventors: David V. Toloday, Marlin Austin, Loren D. Mueller, Paul D. Bilyeu
  • Patent number: 7181940
    Abstract: A door lock transmission mechanism is provided on the first surface of a door for transmitting movement to a door lock provided on the second surface of the door opposite to the first surface. The door lock transmission mechanism includes a lock casing unit, an actuation mechanism, and a locking mechanism. The actuation mechanism includes a traction member having a traction portion for driving a locking seat of a core unit of the locking mechanism, wherein the locking seat can rotate freely when the locking mechanism is locked, such that an actuation member of the actuation mechanism can be pressed down by force and keeps the locking state of the door lock, and thus the parts of the door lock transmission mechanism can be protected from being damaged.
    Type: Grant
    Filed: November 12, 2004
    Date of Patent: February 27, 2007
    Assignee: Thase Enterprise Co., Ltd.
    Inventor: Ching-Tien Lin
  • Patent number: 7070216
    Abstract: A door handle assembly which is compact in size for space-efficient packaging in a door of an automotive vehicle. The assembly includes a safety system for preventing inadvertent movement of the handle to an unlatched position during a side impact collision. A counterweight is mounted in the handle assembly which, during relative motions of parts induced by acceleration from a side impact, resists unlatching the handle. The counterweight is rotatably mounted on an axis different from an axis of the handle latch control mechanism, and is not fixedly attached to the handle mechanism.
    Type: Grant
    Filed: September 9, 2004
    Date of Patent: July 4, 2006
    Assignee: Siegel-Robert, Inc.
    Inventor: Patrick A. von zur Muehlen