Cylinder Patents (Class 70/373)
  • Patent number: 10273716
    Abstract: A rekeyable lock includes a cylinder, a plug and a blocker. The cylinder includes a main body, an accommodation hole and a through hole penetrating through the main body and communicating with the accommodation hole. The plug is rotatably disposed in the accommodation hole. The blocker is movably disposed in the accommodation hole and includes a block portion and a position portion connecting with each other. The block portion is located between the main body and the plug. The position portion protrudes outside the accommodation hole via the through hole and positioned on a steady portion of the main body. The bottom pins can be removed from or blocked in the plug by the blocker for key replacement, and the position of the block portion can be easily adjusted by the position portion protruding outside the accommodation hole for rapidly replacing the bottom pins.
    Type: Grant
    Filed: March 1, 2018
    Date of Patent: April 30, 2019
    Assignee: TAIWAN FU HSING INDUSTRIAL CO., LTD.
    Inventor: Fu-Chih Huang
  • Patent number: 9809995
    Abstract: Described herein is locking apparatus, method for making a locking apparatus, and method for mounting a locking apparatus to the door of a personal storage container. The locking apparatus may include a threaded portion having deformed threads and a lock body shape to fit a restrictive mounting hole.
    Type: Grant
    Filed: February 19, 2016
    Date of Patent: November 7, 2017
    Assignee: UNITED STATES POSTAL SERVICE
    Inventors: Donald E. Irwin, Michael L. Spears, Robert Dalton
  • Patent number: 8919156
    Abstract: A core replaceable hockey lock includes a housing having a space defined therein. An installation hole is defined in one end thereof and a slit is defined in the inner periphery of the installation hole. An insertion hole is defined in the housing and communicates with the slit. A deadbolt is rotatably installed in the installation hole and has a recess which is located corresponding to the slit. The deadbolt has at least one passive member connected thereto which is located in one end of the housing. A positioning plate is inserted in the slit and the recess to axially position the deadbolt. A positioning pin is inserted into the insertion hole and positions the positioning plate. The hockey lock can use different cores installed therein such as six-bead core, seven-bead core or bead-replaceable core. The user needs only one key to unlock all of the hockey locks.
    Type: Grant
    Filed: February 21, 2014
    Date of Patent: December 30, 2014
    Assignee: Federal Lock Co., Ltd.
    Inventor: Tien-Kao Liu
  • Patent number: 8893535
    Abstract: A lock cylinder of a motor vehicle has a cylinder housing formed from plastic and the cylinder housing has an opening for receiving a cylinder core. The plastic of the cylindrical housing is reinforced at least in certain regions with aramid fibers. Thus, the cylinder housing is extremely robust and increases the forcing resistance of a door lock equipped therewith.
    Type: Grant
    Filed: November 25, 2013
    Date of Patent: November 25, 2014
    Assignee: Dr. Ing. h.c. F. Porsche Aktiengesellschaft
    Inventor: Jens Zimmer
  • Patent number: 8756963
    Abstract: A sealed push button latch. It includes a housing with an upper cavity and a lower cavity and a rim which provides a seal contact seat. The lower cavity has a latch opening formed therein at a first side thereof, and at least one drain/return clip aperture formed at a second side thereof. A push button with a keyed lock is slidably received in the upper cavity. A biasing device biases the push button to a closed position. A seal positioned on the push button provides sealing between the seal contact seat of the rim of the housing and the push button. A locking latch is slidably positioned in the lower cavity, and is slidably movable between a protruding position through the latch opening, and a retracted position, wherein pushing the push button down into the housing retracts the locking latch into the lower cavity.
    Type: Grant
    Filed: July 13, 2012
    Date of Patent: June 24, 2014
    Assignee: S.P.E.P. Acquisition Corp.
    Inventor: Tam Le
  • Patent number: 8756964
    Abstract: A centralized unlocking operation device is provided in which a first operating arm pivots in response to a rotor being pivoted from a neutral position in a forward direction, and a second operating arm pivots in response to the rotor being pivoted from the neutral position in a reverse direction, wherein a first pressing face (38) that abuts against and imposes a pressing force on a first pressure-receiving part (35) of the first operating arm (33) when the rotor (15) is pivoted from the neutral position to the first operating position side and a second pressing face (39) that abuts against and imposes a pressing force on a second pressure-receiving part (36) of the second operating arm (34) when the rotor (15) is pivoted from the neutral position to the second operating position side are formed on a cam part (37) provided on the rotor (15), and the spring (32) is provided between the first and second operating arms (33, 34) so as to urge the first and second operating arms (33, 34) in a direction in which t
    Type: Grant
    Filed: July 26, 2011
    Date of Patent: June 24, 2014
    Assignee: Kabushiki Kaisha Honda Lock
    Inventors: Hitoshi Yano, Nobuyuki Satou, Hayato Wakai
  • Publication number: 20140137613
    Abstract: A lock cylinder includes a housing, in which a sleeve having a cylinder core accommodated therein is rotatably supported. The cylinder core has spring-loaded tumblers forming a form closure with recesses arranged in the sleeve when a key engaging the tumblers is removed. Inside the housing, the sleeve is coupled to a coupling element by means of a disengaging sleeve. The coupling element is supported inside the housingand connected to a bearing in a rotationally-fixed manner. The bearing supports an output element. At least one of the sleeve and the coupling element forms a form closure with the bearing to block the rotation of the output element if an improper object is used in operative connection with the cylinder core.
    Type: Application
    Filed: January 27, 2014
    Publication date: May 22, 2014
    Applicant: HUF HÜLSBECK & FÜRST GMBH & CO.
    Inventor: Matthias Löw
  • Patent number: 8650919
    Abstract: An anti-break lock includes a body and two rods respectively extend from two ends of the body. Two rings extend radially from the body. The body has a passage which communicates with one of the rings and the ring is engaged with an engaging block. The engaging block has a recess in which a pad is received. The passage has a resilient member and a stop pin received therein and the stop pin has a first shoulder and a second shoulder formed in two ends thereof. A contact portion extends from the second shoulder. The body has a room which communicates with the passage. A resilient piece and an engaging member are received in the room. When the lock is damaged, the contact portion is inserted into the recess and stopped by the engaging member so that it cannot move back to its initial position. The lock cannot be unlocked.
    Type: Grant
    Filed: May 23, 2012
    Date of Patent: February 18, 2014
    Inventor: Tien-Kao Liu
  • Patent number: 8640515
    Abstract: The bar has two arms (12, 13) which can each be inserted into a recess (6) of the housing (2) of one of the two cylinder halves (1). The arms (12, 13) each have several drilled holes to accommodate attachment pins. The bar has a middle part (9) as base element and at least one extension part (16). The middle part (9) and the extension part (16) can be interconnected and each has at least one drilled hole (15, 21) to accommodate a connecting pin (30).
    Type: Grant
    Filed: February 3, 2009
    Date of Patent: February 4, 2014
    Assignee: Assa Abloy (Schweiz) AG
    Inventor: Urs Späni
  • Patent number: 8505347
    Abstract: A locking device which has a lock cylinder and a matching key. The key has a key bit with at least one coding notch and a blocking rib with at least one indentation. The lock cylinder has a housing with a bearing bore and a cylinder core that is mounted in the bearing bore and a blocking member. The blocking member is engagable in a blocking recess of the bearing bore and prevents rotation of the cylinder core. A pivot lever is mounted in the cylinder core and has a bearing end about which the pivot lever pivots, and a sensing end which senses the blocking rib The pivot lever closes off a capturing opening for the housing pin when the blocking rib is the proper height and opens the capturing opening after a partial rotation of the cylinder core when the blocking rib is missing.
    Type: Grant
    Filed: September 10, 2010
    Date of Patent: August 13, 2013
    Assignee: C. Ed. Schulte Gesellschaft Mit Beschraenkter Haftung Zylinderschlossfabrik
    Inventors: Theo Piotrowski, Michael Reine
  • Patent number: 8424349
    Abstract: A recodeable lock includes a housing, a cylinder plug, a plurality of wafer tumblers, and a sidebar coupled with the cylinder plug. The sidebar is assembled with a plurality of code blocks and a codebar releasably securing the code blocks to the sidebar. A liftbar is disposed in the housing radially outward of the cylinder plug and is configured to selectively engage a radially outward extending appendage of the codebar when the cylinder plug and sidebar are rotated to a recoding orientation, to release the code blocks from the sidebar. The housing includes a circumferential track axially positioned to receive the appendage of the codebar to permit greater than 180 degree rotation of the cylinder plug and sidebar with respect to the housing.
    Type: Grant
    Filed: January 20, 2009
    Date of Patent: April 23, 2013
    Assignee: Master Lock Company LLC
    Inventors: Jesse A. Marcelle, Dean A. Paulson
  • Patent number: 8387424
    Abstract: The invention relates to a method for making a rotating lock (10) for the locking system of an automotive vehicle, that comprises at least first and second complementary parts (5, 6) that can be assembled in at least one overlap area (7) for defining a stator (12) inside which a rotor (11) can be rotated, characterized in that it comprises the following steps: a first step for assembling the two parts (5, 6) in order to position in said overlap area (7) at least one opening (32) formed in the first part of the stator (6) opposite the opening of a corresponding cavity (34) formed in the second part of the stator (5); a second crimping step during which a crimping punch (22) is introduced in each opening (32) for at least partially deforming the wall of the opening (32) in the direction of the corresponding cavity (34) in order to crimp the assembly of the two parts of the stator (5, 6).
    Type: Grant
    Filed: February 4, 2008
    Date of Patent: March 5, 2013
    Assignee: Valeo Securite Habitacle
    Inventor: Bernard Planteline
  • Patent number: 8347678
    Abstract: A rekeyable lock cylinder assembly includes at least one lock cylinder and a mortise lock adapter. Each lock cylinder includes a cylinder body with a longitudinal axis. A locking bar is disposed in the cylinder body for movement transverse to, and rotationally about, the longitudinal axis. A plug assembly having a tool receiving aperture is disposed in the cylinder body and is rotatable about the longitudinal axis. A plurality of pins and a corresponding plurality of racks are disposed in the plug assembly. A first member is moveable in response to application of a force by a tool received through the aperture to simultaneously disengage all of the plurality of racks from the plurality of pins. The mortise lock adapter includes a housing configured for receiving the cylinder body of the lock cylinder. A mortise lock actuator is coupled to the plug assembly of the lock cylinder.
    Type: Grant
    Filed: June 11, 2008
    Date of Patent: January 8, 2013
    Assignee: Newfrey, LLC
    Inventor: Gerald B. Chong
  • Patent number: 8336346
    Abstract: A lock includes a stationary key mass having a first key mass bore and a keyway, and a movable spring mass including a first spring mass bore. A first spring mass pin is mounted in the first spring mass bore, and a first key mass pin is mounted in the first key mass bore for reciprocation between a locked position immobilizing the spring mass and an unlocked position unconstraining motion in at least one direction. The unlocked position is a function of the presence of a matching key in the keyway. Multiple key mass and spring mass pins can be used, some or all of which can have stepped configurations, and corresponding single-bladed or multi-bladed keys, or multiple keys, can be used. The keys can be straight or curved in any of various planes, or they can be straight but flexible to match curved keyways. Curves can be unidirectional or compound. Relative motion between the key mass and spring mass can be in a plane or along straight line or circular.
    Type: Grant
    Filed: August 18, 2010
    Date of Patent: December 25, 2012
    Assignee: Gordon B. J. Mah and Yu-Chen Mah Family Trust
    Inventor: Gordon B. J. Mah
  • Publication number: 20120118032
    Abstract: The invention relates to a lock cylinder comprising: a cylinder core (2) having a key channel (7) for inserting a key (5) which is provided with profiling (18); at least one feeler element (9) which is disposed in the cylinder core (2), is acted on by a spring (8) and is held in a blocking position by the spring (8) when the key (5) is not inserted in the key channel (7); and a blocking element (13) which, when the feeler element (9) is in the blocking position, is held in a blocking position which blocks rotation of the cylinder core (2), it being possible for the feeler element (9) to be shifted against the return force of the spring (8) into a release position by the profiling (18) on the matching key (5) inserted into the key channel (7), in which position the locking element (13) can be deflected into a position releasing the cylinder core (2).
    Type: Application
    Filed: July 1, 2010
    Publication date: May 17, 2012
    Applicant: C. Ed Schulte Gesellschaft mit beschränkter Haftung Zylinderschlossfabrik
    Inventor: Andreas Baumann
  • Patent number: 8166784
    Abstract: A lock mechanism includes a cover plate positionable over a plurality of pin chambers in a cylinder housing wherein one or more of the pin chambers include an internal threaded portion. The lock mechanism includes one or more pin assembly caps that are operative to secure the cover plate to the cylinder housing of the lock by threadably engaging with threaded pin chambers. The pin assembly caps include an internal cavity sized to receive at least a portion of a pin assembly, such that threaded pin chambers and unthreaded pin chambers have substantially the same dimensions without substantially increasing the dimensions required for the lock mechanism. The pin assembly caps include a socket (e.g., a hex socket, a Phillips-type socket, or the like) that allow users to selectively remove and secure the cover plate to the cylinder housing common tools.
    Type: Grant
    Filed: March 25, 2010
    Date of Patent: May 1, 2012
    Assignee: GMS Industries, Inc.
    Inventor: Mike Yueh-Ming Tong
  • Patent number: 7987688
    Abstract: A turning knob with a lock for an electric circuit indicating a body for receiving a barrel rotating relative to a stator. The barrel includes springs receiving a key configured while rotating to take up at least two functional retained or released positions and having at one of its ends a shank configured to be actuated by rotating the key. The body has an inner cylindrical sleeve whereon the stator is urged to be positioned, the inner sleeve having a number of identical members for positioning the stator, each positioning member of the inner sleeve matching a corresponding positioning member of the stator, so as to select the position of the stator relative to the body.
    Type: Grant
    Filed: February 9, 2006
    Date of Patent: August 2, 2011
    Assignee: Schneider Electric Industries SAS
    Inventors: Patrice Thizon, Bernard Desaphie
  • Patent number: 7956741
    Abstract: A tumbler-type lock apparatus for use with a tumbler-type card key having a code pattern region including an array of holes and non-hole portions that expresses a key code of the tumbler-type card key. The tumbler-type lock apparatus includes a slider case and a slider movable relative to the slider case when the tumbler-type card key is inserted into the tumbler-type lock apparatus. Tumblers extending in the slider case and slider each correspond to one of the holes or non-hole portions. Springs bias the tumblers towards the slider. The tumbler-type lock apparatus verifies the tumbler-type card key when the tumblers are engaged with the slider case and slider during insertion of the tumbler-type card key. The slider includes accommodation portions. A distal end of the tumbler that has passed through the corresponding hole of the tumbler-type card key is accommodated in the corresponding accommodation portion.
    Type: Grant
    Filed: October 2, 2008
    Date of Patent: June 7, 2011
    Assignee: Kabushiki Kaisha Tokai Rika Denki Seisakusho
    Inventors: Takumi Tamezane, Toshiharu Katagiri
  • Publication number: 20110083484
    Abstract: A locking device which has a lock cylinder and a matching key. The key has a key bit with at least one coding notch and a blocking rib with at least one indentation. The lock cylinder has a housing with a bearing bore and a cylinder core that is mounted in the bearing bore and a blocking member. The blocking member is engagable in a blocking recess of the bearing bore and prevents rotation of the cylinder core. A pivot lever is mounted in the cylinder core and has a bearing end about which the pivot lever pivots, and a sensing end which senses the blocking rib The pivot lever closes off a capturing opening for the housing pin when the blocking rib is the proper height and opens the capturing opening after a partial rotation of the cylinder core when the blocking rib is missing.
    Type: Application
    Filed: September 10, 2010
    Publication date: April 14, 2011
    Applicant: C. Ed. Schulte Gesellschaft mit beschraenkter Haftung Zylinderschlossfabrik
    Inventors: Theo Piotrowski, Michael Reine
  • Publication number: 20100284144
    Abstract: A plunger-type security lock includes a slotted, cylindrical sliding key receptacle, a ferrule arranged on an outer cylindrical surface of the sliding key receptacle that is configured for attachment to a locking member, a cylindrical plunger, a sliding key including a hooking end and a plunger-contact end that is configured with a key definition and for slidable spring-loaded operation within the slotted, cylindrical sliding key in cooperation with the cylindrical plunger to extend and hook the flexible locking strip and to retract with and lock the locking strip in locking state and a locking mechanism that defines the locking state in cooperation with the key definition.
    Type: Application
    Filed: January 25, 2010
    Publication date: November 11, 2010
    Inventor: Peter Allen
  • Patent number: 7770424
    Abstract: A cylinder lock device includes a rotor case in a cylindrical shape, a rotor arranged to be rotatable inside the rotor case including a key insert hole being formed to extend in an axial direction, a sleeve arranged to be rotatable between the rotor case and the rotor and having an engaging groove, and a plurality of tumblers provided in the rotor to be movable in a radial direction to engage with the engaging groove of the sleeve when biased to an outer radial direction and to release the engagement with the sleeve by disengaging with the engaging groove when a regular key is inserted into the key insert hole. A position in a circumferential direction and a size of the engaging groove of the sleeve is configured to contact with an inner surface of the engaging groove at a different position in a circumferential direction with respect to at least two tumblers among the plurality of tumblers.
    Type: Grant
    Filed: August 7, 2008
    Date of Patent: August 10, 2010
    Assignee: Kabushiki Kaisha Tokai Rika Denki Seisakusho
    Inventors: Takumi Tamezane, Toshiharu Katagiri
  • Patent number: 7716958
    Abstract: An insert type of cylinder cabinet cam lock permits use of Schlage-compatible deadbolt cylinders in a cabinet door and/or drawer cam lock. A bifurcated, housing is provided that journals a cam driver adapted for operational interconnection with the Schlage-compatible standard deadbolt.
    Type: Grant
    Filed: June 7, 2007
    Date of Patent: May 18, 2010
    Assignee: Olympus Lock, Inc.
    Inventor: Frank J. Martin
  • Patent number: 7698916
    Abstract: A lock with a core rotatable in an intermediate shell that is rotatable in an outer shell of the lock's body resists attack by the application of excessive torque to the keyway or drilling into the core.
    Type: Grant
    Filed: March 26, 2008
    Date of Patent: April 20, 2010
    Assignee: Videx, Inc.
    Inventor: Paul Davis
  • Publication number: 20100031716
    Abstract: A lock core and key blank are disclosed. The disclosed lock core includes a core body, a core sleeve, a core plug, and a side pin assembly including a side pin, a region pin, and a spring.
    Type: Application
    Filed: November 2, 2009
    Publication date: February 11, 2010
    Inventor: Diana Teixeira
  • Patent number: 7634929
    Abstract: The invention relates to a cylinder core (1) which can be mounted in a rotatable manner in a locking device, in particular of a storage compartment or of a glove compartment of a motor vehicle, and has a head region (6), which has a key channel (2) into which a key can be introduced, and a retaining region (7), which adjoins the head region (6) and is formed with a control means (8) which, when the cylinder core (1) is rotated about its axis of rotation (11), moves an arresting means, which is arranged in the locking device, for a closing and/or opening operation. The invention provides for the cylinder core (1) to have at least two material bodies (6, 7, 8), wherein a first material body (6, 7) is configured with the head region (6), which contains a first plastic, and a second material body (7, 8) is designed with the control means (8), which contains a second plastic, the second plastic having a higher strength than the first plastic.
    Type: Grant
    Filed: February 27, 2006
    Date of Patent: December 22, 2009
    Assignee: HUF Hulsbeck & Furst GmbH & Co. KG
    Inventors: Frank Kuhnke, Armin Geurden, Dirk Jacob
  • Publication number: 20090293564
    Abstract: A lock with associated key, of the type comprising a stator provided with a substantially cylindrical longitudinal cavity for accommodating a rotor with a longitudinal recess for the insertion of a coded key. The rotor and the stator comprise a plurality of channels which accommodate respective pins, complementary pins and optional elastic elements. At least one of the pins has at least one substantially lateral protruding tab, whose upper edge is suitably contoured. The key has a cross-section that is complementary to the cross-section of the longitudinal recess when the pins, at the regions aligned with the tab, are in a configuration for disengaging the stator and the rotor, accommodating with contact the end of the pins in respective coding recesses and the contoured rim of the corresponding tab on complementarily shaped portions.
    Type: Application
    Filed: June 5, 2007
    Publication date: December 3, 2009
    Applicant: CISA S.P.A.
    Inventor: Enzo Talamonti
  • Patent number: 7596975
    Abstract: An improved lock mechanism comprising an anti-pry shield having a hollow body with a first end and a second end, and a cylindrical shield at its first end; a knob-set cylinder having a plug with a key end and a driver end; a monolithic cylinder guard having a body with a beveled exterior side wall between a first end and a second end, the second end having a bore, a cylinder receiver having a cavity open to the first end, the cavity adapted to receive the knob-set cylinder from the first end, the cavity open to the bore in the second end, the bore adapted to receive the key end of the plug; and a cover having a beveled exterior side wall between an open first end and a covered second end, the decorative cover permanently secured to and covering the beveled exterior side wall and the second end of the monolithic cylinder guard, the covered second end of the cover having a bore coaxial with the bore in the second end of the monolithic cylinder guard and the plug of the knob-set cylinder.
    Type: Grant
    Filed: December 21, 2006
    Date of Patent: October 6, 2009
    Inventors: Zhi Man Yuan, Xiang Bei Zou, Gua Hua Liu
  • Patent number: 7530246
    Abstract: A wafer-type tumbler cylinder comprises a sleeve, a cylinder, some wafers and some springs. A shaft of the cylinder includes a first and a second semicircular columnar body. The first semicircular columnar body includes a front flange, a rear drive section and a U-shaped indentation at the inner lateral surface that provides for insertion into the second semicircular columnar body. On the first and second semicircular columnar bodies, one or more slots are disposed to fasten with the wafers. A relatively wider rectangular notch is disposed between the inner sides of every two slots, which are respectively installed with a wafer; only one spring is positioned in the wider rectangular notch, thereby serving as a shared spring for every two wafers. The material cost of a spring is saved; besides, it's able to prevent from prying effectively because a burglar cannot pry two wafers supported by a shared spring.
    Type: Grant
    Filed: May 21, 2007
    Date of Patent: May 12, 2009
    Inventor: Cheng-Ju Yang
  • Patent number: 7350382
    Abstract: A turnbuckle lock for use on a thin-walled door includes a locking tongue and actuating mechanism that are formed as one piece with one another. An inner seal disposed between the housing and actuating mechanism is formed by being sprayed onto the housing. The actuating member and the housing member enclosing the actuating mechanism are permanently connected to each other, and the inner seal is placed inside at least one free space formed on the actuating mechanism. The inner seal and outer seal also may be formed as a one-piece element. By the permanent connection of the housing and the component made up of the actuating mechanism and the locking tongue, it is ensured that the locking tongue cannot be detached from the actuating mechanism, so that the locking function of the turnbuckle lock is always provided.
    Type: Grant
    Filed: February 13, 2004
    Date of Patent: April 1, 2008
    Assignee: EMKA Beschlagteile GmbH & Co. KG
    Inventor: Rainer Hoffmann
  • Patent number: 7251970
    Abstract: A cylinder housing arrangement, where the cylinder housing encloses a lock cylinder or the like, which comprises a number of locking elements to be arranged by a key, preferably tumbler discs to be turned by a key, which discs in their locked position prevent the turning of the lock cylinder relative to the cylinder housing. The cylinder housing comprises a body part and a separate cover part, which is arranged to be installed in the crosswise direction relative to the cylinder housing at the end of the body part on the inserting side of a key, so that it is locked to the body part in the axial direction of the cylinder housing.
    Type: Grant
    Filed: February 24, 2004
    Date of Patent: August 7, 2007
    Assignee: Abloy Oy
    Inventor: Pekka Mielonen
  • Patent number: 7219519
    Abstract: A cylinder housing includes a longitudinal hole for receiving a cylinder of an auxiliary lock. An annular flange is formed on an end of an outer circumference of the cylinder housing, leaving an annular end portion on the end of the cylinder housing. The cylinder housing is mounted to an outer surface of a door having a bore-hole, with the end portion being in intimate contact with a circumferential surface delimiting the bore-hole of the door, and with the annular flange intimately abutting against the outer surface of the door.
    Type: Grant
    Filed: December 27, 2005
    Date of Patent: May 22, 2007
    Assignee: I-Tek Metal Mfg. Co. Ltd
    Inventor: Mu-Lin Shen
  • Patent number: 7121127
    Abstract: A lock set with a quick changeability has a plug, a cylinder, a seat, a ring and a sliding cover. The plug is mounted in the cylinder and has multiple first holes in rows wherein multiple lower pins are inserted. The cylinder has a chamber radially defined therein wherein the plug is inserted, and a lug formed in a top end thereof. Multiple second holes in rows are respectively defined in the lug and multiple upper pins and springs are inserted into the second holes. Multiple openings in rows are respectively defined in a lower inner wall of the cylinder wherein upper pins and springs are inserted into the second holes. The sliding cover abuts the lower inner wall of the chamber and has multiple orifices in rows defined therein. Hence, it is easy for a user to change a corresponding key.
    Type: Grant
    Filed: December 16, 2005
    Date of Patent: October 17, 2006
    Assignee: Eversafety Precision Industry (Tianjin) Co., Ltd.
    Inventor: Fang-Chang Fan
  • Patent number: 6948345
    Abstract: A lock enhancement arrangement for protecting a cylinder lock, from being damaged by an axial tension is disclosed. The lock enhancement arrangement comprises a lock body having a lock channel defining an axial lock cavity and an axial reinforcing cavity, a lock unit which is adapted for actuating a latch assembly, comprising a lock cylinder disposed in the lock cavity for a corresponding key to actuate the latch assembly and a pin seat radially extended from the lock cylinder at a position within the reinforcing cavity, and a retention member, having an axial retaining slot, securely supported within the reinforcing cavity, wherein the pin seat of the lock unit is substantially engaged with the retaining slot of the retention member to block an axial movement of the lock cylinder within the lock cavity so as to substantially retain the lock unit within the lock channel of the lock body.
    Type: Grant
    Filed: May 26, 2004
    Date of Patent: September 27, 2005
    Assignee: Path Line (NG'S) Holdings Limited
    Inventor: JiaQiang Ruan
  • Patent number: 6810703
    Abstract: A casing structure for a cotter-pin type lock core is consisted of a semi-cylindrical casing which defines a longitudinal axis. The semi-cylindrical casing includes a first sidewall, a first side edge, at least one first engaging portion, a second sidewall, a second side edge and at least one second engaging portion. The first engaging portion and the second engaging portion are extended from the first side edge and the second side edge respectively, and adapted to engage with the lock core. The first side edge and the second side edge are opposite and define a maximum diameter. And the first engaging portion and the second engaging portion define a width that is slightly smaller than the maximum diameter defined by the first side edge and the second side edge.
    Type: Grant
    Filed: June 20, 2003
    Date of Patent: November 2, 2004
    Assignee: Taiwan Fu Hsing Industrial Co., Ltd.
    Inventors: Chih-Cheng Huang, Chih-Ming Su
  • Patent number: 6708539
    Abstract: A removable core cylinder having a casing with a cavity, a lock core insertable into the cavity, a cylindrical, rotatable key plug located in a bore in the core, and a retainer member, which is transversely movable in the lock core between a first, locking position and a second, releasing position. The casing has an inwardly protruding locking projection which engages with an axially limited recess in the retainer member when the latter is located in the first, locking position.
    Type: Grant
    Filed: October 3, 2001
    Date of Patent: March 23, 2004
    Assignee: Winloc AG
    Inventor: Bo Widen
  • Patent number: 6595033
    Abstract: A leaf spring includes a plate having a hole into which a key cylinder is inserted, a notch into which a convex portion of the key cylinder is inserted, and spring tabs which can be bent elastically in the insertion direction of the key cylinder formed thereon. The top end of the spring tabs is inclined with respect to the bottom of the rectangular groove before bending, so that the top end is partially brought into contact with the back wall edge after bending. The key cylinder can be attached simply by inserting the key cylinder into the hole of an attachment unit. Freedom of the assembly order is therefore increased. Furthermore, the vibration of the key cylinder in the insertion direction of the key cylinder is reduced.
    Type: Grant
    Filed: September 2, 1999
    Date of Patent: July 22, 2003
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Ikuo Hara, Ken Kojika
  • Patent number: 6532781
    Abstract: The invention relates to a built-in safety device comprising a housing (3) and a rotor (4) mounted therein. Tumblers (8) are mounted in the housing (3) and in the rotor (4). The maximal length (A) of the built-in safety device (1) is approximately 40 mm, and the effective part (2c) of the key (2) is essentially as long as the rotor (4). In addition, the rotor (4) is constructed as one piece and can be operated from both sides thereof. The inventive built in safety device can be installed in a mortise lock more easily than a cross-key bit safety device and permits the production of a locking system.
    Type: Grant
    Filed: October 17, 2000
    Date of Patent: March 18, 2003
    Inventor: Ernst Keller
  • Publication number: 20020144527
    Abstract: A lock actuation assembly for use in a lock chassis. The lock actuation assembly comprises a core and a driver. The core includes a tubular portion positionable in the lock chassis and including a passage therethrough. A flange extends through the tubular portion and is biasable to a position in which a driver engaging portion is within the passage and a projection engaging portion is within the tubular portion's extent. The driver includes a shaft configured to be received within the passage to operably engage the lock chassis' drive system and to engage the flange driver engaging portion such that the projection engaging portion is forced into engagement with a projection extending into the lock chassis core-receiving chamber.
    Type: Application
    Filed: April 10, 2001
    Publication date: October 10, 2002
    Inventors: Troy A. Dalsing, Frederick M. Hensley
  • Patent number: 6202457
    Abstract: A lock core assembly is provided for a cylindrical lock. The cylindrical lock includes a knob having a lock core opening defined in an end face thereof and a spindle projected outward from the other end face thereof. A slot extends along the spindle and includes an extension extended into the other end face, thereby defining two stop wall portions on two opposite sides of the extension of the slot. The lock core assembly includes a barrel and a lock core rotatably mounted in the barrel. The barrel includes a protruded top portion with two lateral wings bearing against the stop wall portions of the extension of the slot.
    Type: Grant
    Filed: March 1, 2000
    Date of Patent: March 20, 2001
    Assignee: Taiwan Fu Hsing Industrial Co., Ltd.
    Inventors: Chiang-Lin Hsueh, Jo-Chiao Wang
  • Patent number: 6170307
    Abstract: Disclosed is an improved cylinder construction for use with a lock system. The cylinder services to frustrate the use of lock picking tools, such as a tensioning device. Specifically, a pair of opposing flat regions are formed at the lower end of the cylinder. Furthermore, the key way formed within the cylinder has an opened lower end. These features make a system which is completely resistant to picking by way of traditional pick tools. Furthermore, the cylinder cannot be broken by way of a screwdriver or drill.
    Type: Grant
    Filed: January 28, 2000
    Date of Patent: January 9, 2001
    Inventor: George N. Feder
  • Patent number: 6035673
    Abstract: A sliding door lock assembly having a lock housing and a removable core is disclosed. The removable core includes a key slot configured to receive an operating key and a control key. The control key is positionable within the key slot and actuable to facilitate removal of the removable core from the lock housing. The operating key positionable within the key slot and actuable to retain the removable core at a position fully inserted within the lock housing.
    Type: Grant
    Filed: October 14, 1998
    Date of Patent: March 14, 2000
    Assignee: Kenstan Lock Company
    Inventor: Robert B. Harrison
  • Patent number: 5966973
    Abstract: A previously used lock assembly constructed for operation using a given key may be operated by a different key after rebroaching. Instead of requiring an expensive, complete replacement of a lock assembly and its operable keys, the present invention allows a lock assembly to be refitted for a different key by a relatively inexpensive replacement of its plug and at least one of the tumbler components, preferably the bottom pin only, of one or more preexisting sets of tumbler components, as needed to modify the lock to receive the different key.
    Type: Grant
    Filed: September 18, 1997
    Date of Patent: October 19, 1999
    Inventor: James A. Watts
  • Patent number: 5884512
    Abstract: A multi-use lock housing and cylinder includes a cylinder of a size and shape such as that typically used in key-in-knob locks. A two-part housing includes an outer housing portion and an inner housing portion, each having a bore and a slot into which the lock cylinder can be fitted. The housing and its associated lock cylinder can be used as a direct replacement for existing rim lock cylinders or mortise lock cylinders. The upper, front portion of the outer housing portion can be enlarged for added strength. The enlarged portion can be provided with a receptacle into which a piece of hardened metal is fitted. An extension having a pair of right-angled slots projects from the rear face of the cylinder and the inner housing. The slots receive driving members in the form of cams or tailpieces such as those commonly used with rim cylinders and mortise cylinders. Additional inner housings of different lengths can be provided for those applications that require mortise cylinders of different lengths.
    Type: Grant
    Filed: December 4, 1997
    Date of Patent: March 23, 1999
    Inventor: Kenneth Wayne
  • Patent number: 5697238
    Abstract: A key cylinder to be attached to an outer panel for a vehicle is provided. The key cylinder includes a cylinder body and a casing for accommodating the cylinder body therein. The casing has a drain hole formed at a lower portion thereof for discharging the water out of the casing and first and second swelling formed to project from a side wall thereof. Above the drain hole, the first swelling is formed so as to incline to an axial direction of the key cylinder. The lower end of the first swelling extends up to a lower part of the casing, apart from one end of the drain hole In the axial direction of the key cylinder. In operation, the water climbing down the side wall of the casing is guided by the first swelling and brought into the lower end of the first swelling. Consequently, without flowing up to the drain hole, the water can be prevented from sticking on the periphery of the drain hole.
    Type: Grant
    Filed: January 18, 1996
    Date of Patent: December 16, 1997
    Assignee: Nissan Motor Co., Ltd.
    Inventor: Futoshi Oike
  • Patent number: 5626041
    Abstract: A lock cylinder replacement device for replacing locks is inserted into a lock cylinder hole or sleeve after a lock cylinder is removed from the lock cylinder hole or sleeve. The lock cylinder replacement device includes a threaded bolt and a pan head portion. The lock cylinder replacement device may also include a rear fastening plate and a mounting nut for mating with the threaded bolt to secure the lock cylinder replacement device in the lock cylinder hole or sleeve.
    Type: Grant
    Filed: May 17, 1995
    Date of Patent: May 6, 1997
    Inventor: James M. Zaccaria
  • Patent number: 5507163
    Abstract: An interchangeable lock core includes a main body, an operative ring, and a core body. The main body includes upper and lower sections, the upper section having two sides and a plurality of first holes each for receiving a driver and a spring therein, and the lower section having a first bore extending in a longitudinal axis thereof and a transverse reception hole in a mediate section thereof. The reception hole extends upwardly into the upper section and defines first and second operative edges respectively at two sides of the upper section. A blind hole is defined in the upper section and communicates with the reception hole for receiving a second spring and a ball therein. The operative ring is received in the reception hole of the lower section of the main body and includes a second bore in alignment with the first bore and an extension which projects outwardly from an outer periphery thereof and extends along an arc thereof.
    Type: Grant
    Filed: April 4, 1994
    Date of Patent: April 16, 1996
    Inventor: Wen-Jang Juang
  • Patent number: 5493883
    Abstract: A lock shell comprising a tubular outer shell for receiving lock components, illustratively a spindle, the shell having an annular key way at the front face; the shell has an enlarged head portion at the front and a reduced diameter cylindrical portion extending from the head portion to the rear of the shell; at least one longitudinally extending lug member is disposed on the outer periphery of the cylindrical portion; the at least one lug starts at the enlarged head and extends rearwardly a minor portion of the length of the shell; the lug has portions successively from the enlarged head consisting of straight top and side walls, inwardly tapering top and side walls, and diminishingly angled walls.
    Type: Grant
    Filed: September 19, 1994
    Date of Patent: February 27, 1996
    Assignee: Fort Lock Corporation
    Inventor: Gary L. Myers
  • Patent number: 5479801
    Abstract: The invention is directed to a web which has a plurality of parts extending in the longitudinal direction of the web and placed against each other. These parts may be stamped sheet metal parts or cast parts, which can be produced in a very cost-effective manner. Two outer parts can form a shell, into which a stamped interior part of steel has been inserted. These two parts can be produced cost-effectively as cast parts, for example of zinc, aluminum or a plastic material, and the interior part (12) can be produced as a stamped sheet metal part. The invention permits a particularly cost-effective production of the web and in bending tests was shown to be particularly stable.
    Type: Grant
    Filed: December 7, 1993
    Date of Patent: January 2, 1996
    Inventor: Ernst Keller
  • Patent number: 5400629
    Abstract: An axial pin tumbler lock for housing in an outer shell. The lock includes a shell and a rotatable driver sleeve telescoped into the shell. The driver sleeve has a bird-cage design including a front large inner diameter portion and a rear small-diameter inner portion and circumferentially arranged throughbores in communication with the inner diameters. A stationary tumbler sleeve is also telescoped in the shell, and in a facing relationship with the driver sleeve. The tumbler sleeve slot includes throughbores in communication with an inner diameter. A spindle extends through the sleeves and is rotatably mounted in the driver sleeve. The spindle includes a body portion and a neck portion with a curved transition zone between the two. Driver and tumbler pins mounted in the throughbores normally prevent rotation of the spindle and driver sleeve with respect to the tumbler sleeve.
    Type: Grant
    Filed: June 28, 1993
    Date of Patent: March 28, 1995
    Assignee: Fort Lock Corporation
    Inventor: Gary L. Myers
  • Patent number: 5325690
    Abstract: A lock which is rekeyable or programmable to operate with a different key from the exterior thereof without disassembling it or removing it from a lock assembly in which it is assembled is disclosed. The lock may be rekeyed through the keyway so that the lock appears from the exterior thereof to be a conventional lock, or from the end opposite the keyway from the interior of a door, or from a side of the lock which requires disassembly of the lock from its lock assembly. The lock includes structure defining a movable shear line that can be adjusted from the exterior of the lock without disassembling the lock itself. Such structure may comprise a rotatable cam and a pin tumbler and an axially adjustable set screw. Security of the lock is improved by selectively restricting or blocking access to the rekeying of the lock in the interior thereof with a gate or shutter, or various combinations of gates or shutters.
    Type: Grant
    Filed: February 24, 1992
    Date of Patent: July 5, 1994
    Assignee: Richard S. Adler
    Inventors: Richard S. Adler, Paul F. Morris, Karl D. Kirk, John Milich, Gerard M. Perichon