Compound Tumblers Patents (Class 70/316)
  • Patent number: 7434430
    Abstract: The present invention provides a dial for a combination lock, which mainly includes a toothed wheel additionally configured on a side of conventional type dial provided with an internally mounted notched wheel. A plurality of external teeth are circum-located on an outer edge of the toothed wheel, and a center of another notched wheel is provided with a rotating shaft, lateral to which is provided with a notch. A plurality of teeth spacings circum-located on an outer edge of the notched wheel mutually engage with external teeth of the notched wheel of the dial. Accordingly, the dial is able to simultaneously actuate and rotate two notched wheels, thereby improving innovative effectiveness of the combination lock.
    Type: Grant
    Filed: April 5, 2007
    Date of Patent: October 14, 2008
    Inventor: Chien-Yung Huang
  • Patent number: 7107803
    Abstract: A combination locking tube comprising a base end cap connected to a base tube having a longitudinal channel and at least one notch contiguous with the channel, at least one locking ring having a longitudinal ring channel, a notch contiguous with the ring channel and an interlocking pin, each locking ring rotatably mounted on the base tube such that the locking ring's notch is positioned over a base tube notch, at least one indicia ring rotatably mounted on a locking ring having a plurality of characters and a plurality of teeth on its outer and inner surfaces, respectively, at least one static ring statically mounted to the base tube having an interlocking pin receptacle and an annular recess, an inner tube having an end cap and at least one pin received within the base tube.
    Type: Grant
    Filed: March 24, 2006
    Date of Patent: September 19, 2006
    Inventor: Neil J. Swanson
  • Patent number: 6718803
    Abstract: A combination lock comprising a housing, a locking bolt and a locking breach, at least one locking assembly rotatably supported within the housing and comprising a disc member formed with a peripheral recess, a cam wheel and a reset cam. A locking member is formed with at least one locking lug angularly displaceable between an un-locked position in which all the looking lugs engage within the peripheral recess of the disc members and where the locking breach is disengaged from the locking bolt, and a locked position in which at least one of the locking lugs is disengaged from the peripheral recess, where the locking breach arrests the locking bolt. A planarly displaceable manipulating member comprises at least one follower corresponding with each cam wheel. A reset mechanism is provided for rotating all disc members into a reset position.
    Type: Grant
    Filed: May 6, 2002
    Date of Patent: April 13, 2004
    Assignee: Knollan Ltd.
    Inventor: Yehonatan Knoll
  • Patent number: 6490891
    Abstract: Draw bolt having a housing (14, 50, 70) including a passageway (32) within which a bolt (24, 46, 72) is slidably mounted. A plurality of annuli (18, 54, 78), each of which has an internal slot (40, 58), are aligned in the passageway (32) and are restrained from axial movement. Each annuli (18, 54, 78) has a plurality of symbols on an external surface to indicate the position of the slot (40, 58). The alignment of the slot (40, 58) and symbols is adjustable by relative movement of a body (36, 56, 90) including the slot (40, 58) and an element (34, 60, 88) bearing the symbols. The bolt (24, 46, 72) includes at least one radially extending spigot (26, 86). Movement of the bolt (24, 46, 72) along the passageway (32) is possible only when the or each spigot (26, 86) is aligned with the slots (40, 58) of the annuli (18, 54, 78).
    Type: Grant
    Filed: May 1, 2000
    Date of Patent: December 10, 2002
    Inventors: Robert W. Stringer, Eric Lai
  • Patent number: 6422051
    Abstract: A combination cable lock includes a cable, a support rod attached to the one end of the cable, multiple first and second locking lugs respectively formed on opposite sides of the support rod, each of the second locking lugs having a dimension different from that of the first locking lug, multiple tumblers each including a number wheel rotatably mounted on the support rod, a follower detachably secured in the number wheel, and containing a first locking recess aligning with and having a dimension corresponding to the first locking lugs, and a second locking recess aligning with and having a dimension corresponding to the second locking lugs, and a number reset device abutting one of the tumblers to detach the follower from the number wheel such that the number wheel can be rotated relative to the follower.
    Type: Grant
    Filed: March 20, 2000
    Date of Patent: July 23, 2002
    Inventor: Lambert Kuo
  • Patent number: 6386005
    Abstract: A combination lock has a plug with a tube extending from the plug. Multiple combination ring assemblies are disposed around the tube, and each of the combination ring assemblies include a combination ring, a positioning ring, and an abutting ring. A bar is inserted with an end inside the tube and an opposed end mounted with a nut extending outside the tube. A cap having a chamber inside is received in a cover, and the nut is received in the chamber. When changing a combination number of the combination lock, a tool is used to turn the cap to separate the combination ring and the positioning ring thus allows the combination number to be changed, and when the changing is completed, the cap is turned to a original position and the combination ring and the positioning ring engages together automatically.
    Type: Grant
    Filed: April 24, 2001
    Date of Patent: May 14, 2002
    Inventor: Lambert Kuo
  • Patent number: 6298694
    Abstract: A combination lock mechanism comprising a housing (20), a locking element (40) fitted with a locking latch (48) and extending into the housing (20), at least two coaxially disposed rotatable locking assemblies (58, 60, 62), each comprising a cogged wheel (68), a locking disc (70) formed with a peripheral recess (84) and a reset element (72) fixable to the cogged wheel (68), a forked locking member (90) pivotally secured within the housing (20) and fitted with first engaging fingers (94), each engaging finger (94) adapted for engagement with the peripheral recess (84) of a corresponding locking disc (70), second engaging fingers (96, 98), each adapted for engagement with a corresponding reset element (72), and a locking lug (140) for locking engagement with the locking latch (48) of the locking element (40).
    Type: Grant
    Filed: May 12, 2000
    Date of Patent: October 9, 2001
    Assignee: Knollan Ltd.
    Inventor: Yehonatan Knoll
  • Patent number: 6065313
    Abstract: A safety press-type zipper lock in which a lock casing is formed with two slots for placing therein tabs of a zipper slider. Each of a left and a right push buttons has a latch hook for locking with the tab. A bounding resilient plate is disposed in the slot for bouding the tab out of the slot. The numeral wheels serve to drive the notched wheel to rotate. The notched wheel serves to drive a sliding plate to shift within the lock casing. A numeral-changing button in a numeral-changing hole of the lock casing can be pressed by a sharp article, whereby a projection at one end of the numeral-changing button is engage with a protuberance of the sliding plate to lock the sliding plate for turning the numeral wheels to change the numerals.
    Type: Grant
    Filed: November 12, 1998
    Date of Patent: May 23, 2000
    Inventor: Chien-Yung Huang
  • Patent number: 5934120
    Abstract: A lock with a resettable combination includes a locating head having a tube extending therefrom and a locking head having a rod extending therefrom and receivably engaged with the tube. A spring, a set of selectors and a sequence reset device are respectively and sequentially mounted around the tube of the locating head. Each of said plurality of selectors having a rotatable ring, a locating block, a drive block and a torsion spring combined for selection. The sequence reset device includes an annular member and a toggle device for driving the set of selectors. The annular member defines a pair of opposed holes in a periphery thereof. The toggle device is pivotally engaged with the annular member and configured as a semi-circular collar. The semi-circular collar has a pair of cam gears respectively formed on two distal ends defined therein.
    Type: Grant
    Filed: December 30, 1997
    Date of Patent: August 10, 1999
    Inventor: Lambert Kuo
  • Patent number: 5927113
    Abstract: A combination lock with code protection device is provided. The lock includes a casing mounted with conventional numeral dials, a pair of posts capable of mounting the tabs of a single double zipper fastener or a dual double zipper fastener, a rotatable switch covering the posts when the lock is in locked position and uncovering the posts when the lock is in unlocked position and a detent rotatably disposed into a circular hole for checking a slide for facilitating the changing of a new combination code for the lock. This disclosure is characterized in the protection of the combination code old or new from disturbed by unintentional rotation of the dials.
    Type: Grant
    Filed: February 13, 1998
    Date of Patent: July 27, 1999
    Inventor: Chun-Te Yu
  • Patent number: 5927110
    Abstract: A zipper lock with a slidable button and non-disturbance code of combination locking device is provide. The lock includes a casing having an opening in forward end for slidably securing a rearward slidable button, a pair of first and second latch members rotatably secured to a fore portion each having a tongue toward each other for locking up a pair of tabs from a double zipper, a slide operated in cooperation with a combination locking device and a check member which checks the latch member from rotation. This disclosure is characterized in the simplized locking mechanism, the rearward slidable button and the check member which gives possibility to control the combination locking device for preventing the code from disturbed by inadvertent rotation of the dials and facilitating the users to change their desired code for the combination locking device.
    Type: Grant
    Filed: November 4, 1997
    Date of Patent: July 27, 1999
    Inventor: Chun-Te Yu
  • Patent number: 5839301
    Abstract: A combination lock including a housing, a dial assembly, a press plate, and a latch means. When the dials are turned to a preset code, a hook may be pulled upwardly to cause a hook projection to extend out of a seat notch so that a first shaft post brings the entire dial assembly to displace to one side due to a clearance between a hook notch and a hook neck portion, so that shaft notches engage wedge-shaped projections on the housing. When the hook is pressed downwardly, the hook projection enters the seat notch so that the first shaft post enters the hook notch to cause a spring to reset, bringing the entire dial assembly to displace to the other side so that the shaft notches disengage from the wedge-shaped projections to achieve locking.
    Type: Grant
    Filed: October 6, 1997
    Date of Patent: November 24, 1998
    Inventor: Chung-Tung Hsu
  • Patent number: 5737947
    Abstract: A mother-and-daughter combination lock includes: a housing, a shackle lockable or unlockable in a first portion of the housing as controlled by a locking shaft and a plurality of dials and sleeves rotatably mounted in the housing; and a sliding door slidably held in the housing for covering and uncovering a security compartment recessed in a second portion of the housing as also controlled by the locking shaft, the dials and the sleeves, whereby either the shackle or the sliding door can be independently and individually locked or unlocked.
    Type: Grant
    Filed: May 2, 1997
    Date of Patent: April 14, 1998
    Inventor: Chong-Kuan Ling
  • Patent number: 5457907
    Abstract: A gun lock assembly includes an engagement portion with a locked position in which a portion of the firing mechanism is operatively engaged to prevent firing of the firearm, and an unlocked position in which operation of the firearm is permitted. The lock preferably includes a lock housing with structure for attaching the lock housing to the firearm. An adapter can be utilized to facilitate attachment of the lock to a variety of different guns. A preferred combination lock is disclosed with structure for altering the combination. An embodiment that is suitable for long arms is also disclosed.
    Type: Grant
    Filed: August 13, 1992
    Date of Patent: October 17, 1995
    Assignee: Saf-T-Lok Corp.
    Inventor: Frank Brooks
  • Patent number: 5345798
    Abstract: A code lock device comprising an actuator responding to a release operation and a locking operation, and an actuation which performs reciprocating motion and normal and reverse rotation. A plurality of dials for setting a release code series and a plurality of drive plates each of which responds to each dial and integrally rotates with each actuation shaft are provided on the actuation shaft, and a dial enforced reset mechanism is equipped between each drive plate and each corresponding dial. This dial enforced reset mechanism makes each drive plate and each corresponding dial engage each other by an engaging means in response to reciprocating motion and normal and reverse rotation of the actuation shaft in the case of the release operation or the locking operation, and makes each dial forcibly rotate to break the release code series in response to rotation of the actuation shaft.
    Type: Grant
    Filed: April 2, 1993
    Date of Patent: September 13, 1994
    Assignee: Clover Co., Ltd.
    Inventor: Hatsuo Nakai
  • Patent number: 5267460
    Abstract: A combination lock for a key safe has an over-center spring for biasing a unitary bolt in an extended or retracted position. A switch for actuating the bolt has a break-away button to foil vandals. The bolt includes checkers for engaging notches in a plurality of programmable combination rings when the combination is properly dialed. The checkers have V-shaped ridges for engaging false notches formed in the combination rings, making the lock pick-resistant. The checkers also include flat shoulders to prevent the bolt from being forcibly wedged into the combination rings to open the lock. The combination must be properly dialed to permit the bolt to be retracted for closing the key safe.
    Type: Grant
    Filed: November 21, 1991
    Date of Patent: December 7, 1993
    Assignee: Supra Products, Inc.
    Inventor: Charles E. Burleigh
  • Patent number: 5235831
    Abstract: A combination lock mechanism for briefcases allows the combination wheels to be rotated to a predetermined combination to unlock the lock and thereupon return the combination wheels back to a zero setting so that the lock combination cannot be observed by another party once the case is opened.
    Type: Grant
    Filed: January 23, 1992
    Date of Patent: August 17, 1993
    Assignees: Robert E. Lauria, Carolyn Jean Carlson
    Inventors: Robert E. Lauria, Randall M. Ingersoll
  • Patent number: 4905488
    Abstract: A dial lock comprises: a slide bar (10) which is controlled of its movement by engagement with a lock pin (2), dials (3) for controlling movement of the lock pin (2) with respective optional retrieving number, return-to-zero gears (6) to return the dials (3) to these zero-indicating positions at the time of locking and unlocking, and anti-locking means for enabling the locking only after a case when at least one of the dials is set to indicate a number other than zero, whereby optional unlocking number can be set without fail in locking operation.
    Type: Grant
    Filed: July 6, 1988
    Date of Patent: March 6, 1990
    Assignee: Clover Co. Ltd.
    Inventor: Nakai Hatsuo
  • Patent number: 4885923
    Abstract: A lock applied to an opening-closing part of a locker for rent or the like includes a combination lock in a movable member of a door or the like with a locking mechanism having a cam plate engaging with and disengaging from a catcher of the main body side and a dial lock for defining operation of the locking mechanism disposed in linkage with this locking mechanism. A mechanism is provided such that the lock-releasing numerals in the dial lock can be arbitrarily set by the user.
    Type: Grant
    Filed: February 29, 1988
    Date of Patent: December 12, 1989
    Assignee: Clover Co., Ltd.
    Inventor: Hatsuo Nakai
  • Patent number: 4831851
    Abstract: A lock mechanism having a mechanical combination lock and an electronic lock, wherein the mechanical combination lock serves for effecting a fail safe entry in case of failure of the electronic lock. More specifically, the lock mechanism includes a mechanical combination lock having a bolt-retracting linkage which is tripped by inward movement of a dial into a first operative relationship with a driver on the drive spindle. An electronic latch prevents bolt retraction by this bolt-retracting linkage when in the first operative positive until the electronic latch has been operated. However, when the tumblers of the lock have been aligned and a gate bar enters the tumblers, the bolt-retraction linkage is caused to assume a second operative relationship with the driver so as to permit bolt retraction despite the latching effect of the electronic lock.
    Type: Grant
    Filed: December 29, 1986
    Date of Patent: May 23, 1989
    Assignee: Supra Products, Inc.
    Inventor: Wayne F. Larson
  • Patent number: 4831860
    Abstract: A stop on a deadbolt of a top-change combination lock abuts against a hasp when the latter is in its latched position in order to prevent joint movement of an actuator and the deadbolt from being axially moved from a central position to a combination-changing position when the hasp is in its latched position.
    Type: Grant
    Filed: May 24, 1988
    Date of Patent: May 23, 1989
    Assignee: Crest Lock Co. Inc.
    Inventors: Samuel R. Sheiman, Julius Sheiman
  • Patent number: 4829794
    Abstract: The present invention relates in general to combination padlocks of the type which permit the user to reset the combination, and it relates in particular to a new and improved mechanism for preventing spurious or unintentional changing of the combination.
    Type: Grant
    Filed: May 9, 1988
    Date of Patent: May 16, 1989
    Assignee: National Manufacturing Co.
    Inventor: Marlin D. Crown
  • Patent number: 4796446
    Abstract: A combination lock of the type adapted for changing of the combination by a change key, a lock case housing, a stack of a plurality of tumbler wheels loosely journaled on a tumbler post for rotation about its axis and each including an annular outer rim portion and an inner annular hub portion having teeth releasably intercoupling the hub portion and rim portion at any of a plurality of relative angular positions. The rim portions of the tumbler wheels have specially shaped peripheral gates to receive confronting portions of a fence on the fence lever when the tumbler wheels are properly aligned. The tumbler post is supported within the tumbler wheel hub portions for nonrotatable axial movement to shift the hub portions axially relative to the outer rim portions between coupled and decoupled relation.
    Type: Grant
    Filed: January 7, 1987
    Date of Patent: January 10, 1989
    Inventors: Harry C. Miller, Stephen Helesfai
  • Patent number: 4776190
    Abstract: A combination lock of the type adapted for changing of the combination by a change key, a lock case housing, a stack of a plurality of tumbler wheels loosely journaled on a tumbler post for rotation about its axis and each including an annular outer rim portion and an inner annular hub portion having teeth releasably intercoupling the hub portion and rim portion at any of a plurality of relative angular positions. The rim portions of the tumbler wheels have specially shaped peripheral gates to receive confronting portions of a fence on the fence lever when the tumbler wheels are properly aligned. The tumbler post is supported within the tumbler wheel hub portions for nonrotatable axial movement to shift the hub portions axially relative to the outer rim portions between coupled and decoupled relation.
    Type: Grant
    Filed: January 22, 1987
    Date of Patent: October 11, 1988
    Assignee: Sargent & Greenleaf, Inc.
    Inventors: Harry C. Miller, Stephen Helesfai, John R. Bishop, Gregory Lainhart
  • Patent number: 4770013
    Abstract: The present invention is of a lock applied to an opening/closing part of a locker for rent or the like, and in a movable member of a door or the like, a combination lock is constituted with a locking mechanism having a cam plate engaging with and disengaging from a catching part of a main unit side and a dial lock having a plurality of dials defining movement of an operation shaft which is disposed in connection with this locking mechanism and engages with and disengages from the movable shaft member of the locking mechanism to define the movement thereof, and particularly in the present invention, a mechanism wherein the utilizer can arbitrarily set numerals for unlocking in the dial lock and a dial restoring mechanism, which restores all numerals of the respective dials to the position of zero after setting of numerals for unlocking are installed.
    Type: Grant
    Filed: October 26, 1987
    Date of Patent: September 13, 1988
    Assignee: Clover Co., Ltd.
    Inventor: Hatsuo Nakai
  • Patent number: 4766748
    Abstract: The present invention relates to a knockdown type combination locking device which comprises: a housing body in the form of a rectangular structure with a hollow space for containing a dialing wheels set, a tongue at top of an end side, and two longitudinal sides each with a inclined protrusion at an end; a front plate made of plastic material by injection process, having a plurality of dialing wheel openings, a latch opening and a shifter opening on the front side and two parallel connecting plate at the bottom each with a latch openings and such connecting plate is higher at the latch opening side; a sliding member in the form of a board having a plurality of dialing wheel openings and two hooks at one end, two rectangular openings at the other end; a coupling element in the form of a U-sheet having two openings and two forked portions at a lateral side; and an operating mechanism made of plastic material by injection process having a pair of parallel pawls extending perpendicularly and each pawl has a hook
    Type: Grant
    Filed: May 21, 1987
    Date of Patent: August 30, 1988
    Inventor: Yaw K. Yang
  • Patent number: 4754623
    Abstract: An adjustable combination numerical lock comprising a hook, a first tray, a second tray, a contact chip, two or more number dials, springs and driving rolls. The number dials, the springs, and the driving rolls are respectively set in the second tray, and the hook wedged with the contact chip is put on the two trays. When this lock is locked, the sliding strips do not engage with the recesses of the driving rolls, thereby allowing the driving rolls to rotate with the number dials. Therefore, the sliding strips will be prevented from sliding up if the combination is off. When the numbers are put into the right combination, the lock is opened and the sliding strips are partly engaged with the recesses so that the hook can be pulled up. The combination of the lock can be changed (while in opening combination) by turning the hook right 90 degrees and then pulling it up so that the sliding strips are completely engaged with the recesses. This keeps the driving rolls from rotating with the number dials.
    Type: Grant
    Filed: January 7, 1987
    Date of Patent: July 5, 1988
    Inventor: Blake Hwang
  • Patent number: 4722207
    Abstract: A security system having a secure enclosure for holding an object. Access to the enclosure is controlled by a combination lock having a tumbler arrangement adapted for having its combination changed either by hand or with use of a key. The tumbler arrangement includes an apparatus for mounting a plurality of tumbler wheels in a stacked relationship for rotation about an axis. Each of the tumbler wheels has an inner element releasably engaged with a circumferentially disposed outer element. Each of the outer elements has a peripheral gate and a mechanism for masking the gate. A mechanism is provided for maintaining the inner and outer elements in an engaged condition for simultaneous rotation under normal tumber operation, and a peripherally gated rotatable driver wheel rotates the tumbler wheels. A fence lever includes a nose for contact with the driver wheel and a fence for contact with the tumbler wheels.
    Type: Grant
    Filed: April 4, 1986
    Date of Patent: February 2, 1988
    Assignee: Art Metal U.S.A., Inc.
    Inventor: Leonard R. Wertz, Jr.
  • Patent number: 4722208
    Abstract: A combination lock for suitcases, luggage and the like of a simplified construction has a knob with three positions: a locking position, an unlocking position and a third position for changing the combination code of the lock. In order to prevent undesired entry into the code-changing position, a blocking mechanism is provided which is conveniently mounted on the knob. Normally the blocking mechanism can prevent the knob from entering its code-changing position, and during the re-adjustment of the code, the blocking mechanism can retain the knob in its code changing position. The lock is further provided with a latch member which allows a corresponding flap or hook to be pressed into locking position regardless of whether or not the number wheels are correctly dialed.
    Type: Grant
    Filed: December 8, 1986
    Date of Patent: February 2, 1988
    Inventor: Chean-Chen Ye
  • Patent number: 4719776
    Abstract: Front-programmable combination lock in which a shift member moves with a manual actuator button between locked and unlocked positions of the button and also has shifting movement relative to the button to permit the unlocking combination of the lock to be changed. Access to the shift member is provided by openings at opposite sides of the manual actuator button.
    Type: Grant
    Filed: August 11, 1986
    Date of Patent: January 19, 1988
    Assignee: Presto Lock, Inc.
    Inventor: Richard Molnar
  • Patent number: 4719777
    Abstract: A combination lock for a briefcase, comprises a case body, a push button, a plurality of combination dials, a plurality of driven wheels, a sliding sheet, a positioning sheet, a sliding block, a structural body, a back cover, and a plurality of springs, wherein the combination is changeable, and the combination dials are arranged non-axially so that the lock is simple in structure, easy to operate, and small in size. This lock is especially suitable for a briefcase.
    Type: Grant
    Filed: March 30, 1987
    Date of Patent: January 19, 1988
    Inventor: Blake Hwang
  • Patent number: 4711108
    Abstract: A combination lock having a selectable combination is provided wherein the combination cannot be changed when a case to which the lock is attached is closed. The lock has a slidable shaft with a plurality of sockets rotatable about said slidable shaft and the sockets are axially movable with the shaft and maintain their relative axial position on said shaft. There are a plurality of rollers connected to the sockets and each roller has one of the sockets associated therewith. The sockets and shaft are axially movable with respect to the rollers and rotating at least one roller relative to its associated socket varies the combination. The lock has an axially movable frame and a closer associated with the frame which can move the frame in one direction to open and close the case and in the other direction to place the lock in position to change the combination.
    Type: Grant
    Filed: June 19, 1986
    Date of Patent: December 8, 1987
    Inventor: Jose P. Garro
  • Patent number: 4686842
    Abstract: The invention is related to an improved device of sliding plate numerical lock, in which it is featured that the mutually fitted sliding plate, axial rod, cover, and body are all improved, thus, the lock opening and the number changing can be done by operating a single buttom, further more, because of the adoptation of lugs and clipping slots, the assembling work of the whole lock structure can be made faster; consequently the production cost is thereby reduced.
    Type: Grant
    Filed: May 22, 1986
    Date of Patent: August 18, 1987
    Inventor: Han-Jing Chen
  • Patent number: 4679419
    Abstract: A combination lock has a faceplate movable from a first position to a second position only when combination dials are set to an opening combination of the lock, the dials being movable with the faceplate portion from the first position to the second position and being rotatable relative to the faceplate. A spring biases the faceplate portion toward the first position. A manually shiftable member, also movable with the faceplate from the first position to the second position, is shiftable relative to the faceplate to hold the faceplate in the second position and, at the same time, to permit the dials to select a new opening combination of the lock. The faceplate constitutes a manual actuator that controls a latch.
    Type: Grant
    Filed: April 25, 1986
    Date of Patent: July 14, 1987
    Assignee: Presto Lock, Inc.
    Inventor: Stephen S. Scelba
  • Patent number: 4671088
    Abstract: A lock includes three main elements, i.e. an actuating plate, a plurality of numbered wheels and a lock body wherein the actuating plate has a second engaging medium which is engagable with a first engaging medium, which is provided on a case desired to be provided with the present lock so that when the first and second media interengage the case is kept locked, and the numbered wheels and/or the lock body can engage with the actuating plate to enable the engagement between the first and second engaging media.
    Type: Grant
    Filed: February 6, 1985
    Date of Patent: June 9, 1987
    Assignee: Yan Chan Hong
    Inventor: Yuh Y. Jeang
  • Patent number: 4669286
    Abstract: The present invention discloses a combination changing mechanism for a combination lock comprising a plurality of dial wheels rotatably mounted to the housing of the combination lock, each including a first shaft and a plurality of first teeth extending axially and arranging equidistantly on the outer surface of the first shaft; a plurality of combination changing wheels, each inlcuding a bore for receiving one of the first shaft, an elongated slot communicating with the bore and extending through one side of the combination changing wheel so that the combination changing wheel can be deformed and expanded slightly by a pushing force from one of the dial wheel acting to the peripheral wall of the bore, and a plurality of second teeth on the peripheral wall of the bore to engage with one of the first teeth of the dial wheels; and a movable element having a plurality of stop projections, and capable of being moved to make the stop projections insert respectively into the elongated slots for perventing the combi
    Type: Grant
    Filed: December 9, 1985
    Date of Patent: June 2, 1987
    Inventor: Ching-Yuan Cheng
  • Patent number: 4669285
    Abstract: The present invention relates to a lock assembly with a changeable combination lock which can be used for luggage cases or the like. The lock assembly comprises a lock member having a plurality of grooves corresponding to a series of dial members and a clasp member having a tongue for engaging or releasing from the grooves of the lock member. The dial member has an inner member containing an aperture so that the direction of the groove can be easily changed on the face plate of the dial member for insuring the safety of the luggage case.
    Type: Grant
    Filed: November 18, 1985
    Date of Patent: June 2, 1987
    Inventor: Guy N. Kim
  • Patent number: 4651545
    Abstract: A combination lock has a plurality of shaft-mounted setting discs located behind viewing windows in a front plate of a lock housing. The setting discs have setting symbols and detent engage in individual angular positions. Locking sleeves are adjacent and cooperate with the setting discs. A spring-biased rocker has feeler projections with feeler surfaces which cooperate with engagement spaces in the locking sleeves. The rocker is adapted to engage a mating locking part of the lock. When the lock combination is properly set, the engagement spaces lie in respective positions opposite the feeler projections. The rocker comprises a U-shape including U-arms which surround the setting discs and the locking sleeves. The setting discs are mounted on respective shafts, and the rocker has an axis extending transverse to a plane through the respective shafts of the setting discs.
    Type: Grant
    Filed: September 10, 1984
    Date of Patent: March 24, 1987
    Assignee: S. Franzen Sohne (GmbH & Co.)
    Inventor: Rudi H. Duringer
  • Patent number: 4616492
    Abstract: The combination lock is one wherein movable members of the combination mechanism are set in decoding position by a key in the form of a rotatable shaft with a head at one end serving as a handle. Rotation of the key to proper decoding position is determined by shifting an index mark on the key relative to selected units of a set of letters or numerals on the lock housing. The combination mechanism makes use of a multiple number of pairs of discs concealed in the housing which must be successively set in proper decoding position, one disc relative to the other, to release a lock operating plug. In proper decoding position a slide bar, which normally blocks rotation of the lock operating plug, is shifted by key action into openings provided in the discs and out of blocking engagement with the plug, in which position the plug is free for rotation by the key.
    Type: Grant
    Filed: September 7, 1984
    Date of Patent: October 14, 1986
    Inventor: J. David Barfield
  • Patent number: 4574603
    Abstract: The invention relates to the technical field of combination locks, and in particular to a combination lock of the type having a plurality of combination dials which, once angularly positioned, enable a manually turnable driver element to cause translation of a bolt element by a means of a stud engageable with said combination dials.Provision is made for said stud to be rotatable coaxially with said dials and oscillably movable radially thereto. Further, said dials are defined by a ring which is split by a cut and clamped, by elastic deformation, onto a smooth surface of a hub.
    Type: Grant
    Filed: July 17, 1984
    Date of Patent: March 11, 1986
    Assignee: SERCAS s.r.l.
    Inventor: Giancarlo Parma
  • Patent number: 4557122
    Abstract: A combined combination and key-type lock has both a combination lock and a key-type lock, either or both of which may be used. The combined combination and key-type lock is designed so that it can still be opened without dismantling the compound lock and the correct numbers of the combination lock can be detected even if the correct numbers of the combination lock is forgotten.
    Type: Grant
    Filed: August 25, 1983
    Date of Patent: December 10, 1985
    Inventor: Blake Hwang
  • Patent number: 4554809
    Abstract: An improved combination locking device for suitcases or the like comprises: an open housing body having a pair of protrusions separately formed in the opposing longitudinal sides, and a latching opening in the vertical side; a check plate with a plurality of longitudinally spaced openings formed therein provided in the housing body; a code latch device having a plurality of actuating sleeves and dialing wheels rotatably coupled together installed in the housing body in connection with the check plate; and a manual operating mechanism combined by a coupling frame, a sliding member and a push block installed over the code latch device through a front plate in conjunction with the locations of the actuating sleeves and the dialing wheels; thereby, in addition to performing locking and unlocking functions, the code setting in the latch device can be conveniently changed at any time without opening the suitcase or taking any mechanical operation.
    Type: Grant
    Filed: October 11, 1983
    Date of Patent: November 26, 1985
    Inventor: Yaw Kuen Yang
  • Patent number: 4541259
    Abstract: An easily assembled combination lock has improved tumbler wheel construction, combination changing apparatus, and a bi-positional lock cover which selects between spring-bolt and dead-bolt operation. The improved tumbler wheels have two-piece construction, an inner drive member having a projection, groove and stop assembly cooperating with adjacent tumbler wheels, and a gate ring having a gate and improved gripping apparatus for frictionally engaging the gate ring with the inner drive member. The inner drive member has multiple ratchet teeth about its periphery and the improved gripping apparatus includes a pair of diametrically opposed gripping straps integral with the gate ring, in tension, and tangentially contacting the periphery of the inner drive member imparting a predetermined frictional resistance to rotation. Two normal modes of tumbler wheel operation are contemplated.
    Type: Grant
    Filed: August 3, 1981
    Date of Patent: September 17, 1985
    Assignee: La Gard, Inc.
    Inventor: Tim M. Uyeda
  • Patent number: 4534195
    Abstract: The present invention relates to a lock having a key provided with variable key information elements which are adapted to be scanned during rotation of the key around an axis of the lock. The key preferably includes ten (10) cam plates fixedly joined together in pairs for rotation and mounted in pairs on coaxial hollow shafts. Each shaft is driven by a handwheel in an angularly variable manner. Each cam plate has five (5) different radial steps, so that each pair of cam plates correspondingly has twenty-five (25) different possible combinations of angular positions, each of which can be identified by a letter of the alphabet on the respective handwheel. The key combination is legible through a display window. The lock and its key which are of a relatively simple design, allow the key combination to be easily set and readily recalled.
    Type: Grant
    Filed: February 8, 1983
    Date of Patent: August 13, 1985
    Assignee: GRETAG Aktiengesellschaft
    Inventor: Kurt Ehrat
  • Patent number: 4520641
    Abstract: A multi-dial combination lock is provided with a security feature whereby the dials are rotated when the lock is opened in order to upset the on-combination setting of the dials. Each dial has a heart-shaped cam and a cam operator is provided including followers for the respective cams. When the lock is set on-combination, and an actuator is moved manually in order to open the lock, the actuator also works the cam operator so as to apply pressure to the cam formations on the respective dials effective to rotate each of the dials into a set orientation. In the set orientation to which the dials are rotated, each dial may be orientated so as to display the same combination indicium, e.g. "0". The lock also includes a shift member for changing the set combination of the dials, the shift member being situated in a pocket formed in the manual actuator.
    Type: Grant
    Filed: December 14, 1981
    Date of Patent: June 4, 1985
    Assignee: Presto Lock, Inc.
    Inventor: Lazlo Bako
  • Patent number: 4519229
    Abstract: A combination lock includes a bolt plate that can be retracted independently of a fence plate and dial wheel assemblies when a strap hinge is pressed thereagainst so that the bolt plate can latch into the strap hinge whether the dial wheel assemblies are in a proper combination symbols or not. The bolt plate which latches into the strap hinge can be moved against a biasing force by means of a fence plate which has spaced apart downward hook members abutted against three dial wheel assemblies when it is locked against a releasing movement. Each of the dial wheel assemblies are provided with a radial bore and an axial groove, the radial bores being respectively registered with the axial grooves when the dial wheels are in the proper combination of symbols in a proper sequence for permitting the releasing movement of the fence plate that brings the bolt plate to an unlatching position.
    Type: Grant
    Filed: February 22, 1983
    Date of Patent: May 28, 1985
    Inventor: Yaw-Kuen Yang
  • Patent number: 4503691
    Abstract: A combination lock of the type which may be used with attache cases and the like. The combination is changeable by actuating the same element which unlatches the lock. A latch element is provided which is movable between latched and unlatched positions. A shaft is coupled to the latch element and a plurality of sleeves are rotatably mounted on the shaft. A plurality of dials are, in turn, rotatably mounted on the sleeves and means are provided for selectively engaging the dials with their associated sleeves. A manual actuator is provided for manually moving the shaft and latch element to the unlatched position and for concurrently disengaging the engaging means when the dials are set on combination. When the dials are off combination, the manually actuating means is inhibited from such movement.
    Type: Grant
    Filed: December 16, 1980
    Date of Patent: March 12, 1985
    Inventor: Hung-Wen Li
  • Patent number: 4499745
    Abstract: The invention relates to a lock for locking at least one movable element (1).
    Type: Grant
    Filed: January 29, 1981
    Date of Patent: February 19, 1985
    Assignee: L.A.S. Ricouard S.A.
    Inventors: Jacques Ricouard, Jean-Pierre Quillet
  • Patent number: 4487043
    Abstract: A combination lock having setting discs which are arranged alongside of each other on a shaft, are turnable independently of each other and extend through slots in a front plate of a lock case, having locking sleeves associated with the setting discs, seated on the shaft, in spring-biased coupling engagement with the setting discs and formed on their periphery with depressions which, when the combination number is correctly set are located in a position opposite projections, and having an actuating handle arranged on the front plate, which handle can be displaced longitudinally from its basic position in order to release a hasp which extends into inside of the lock through an opening in the front plate and cooperates with a latch member, the actuating handle also serving to displace the locking sleeves out of their position of coupling engagement with the setting discs.
    Type: Grant
    Filed: November 6, 1980
    Date of Patent: December 11, 1984
    Assignee: S. Franzen S/o/ hne (GmbH & Co.)
    Inventor: Peter Milles
  • Patent number: RE47678
    Abstract: A system and method for managing a permit-based parking environment governed by a parking program. The permit-based parking environment includes a number of parking permits each including a unique RFID tag and tag number. One or more RFID readers are used to scan the vehicles parked in the parking environment to determine if a RFID tag is associated with the parked vehicle. The results of the scan along with information related to the parked vehicle are provided to a permit management system to determine if the vehicle is parked within the scope of privileges pre-defined for that vehicle, pursuant to the parking program governing the parking environment. The permit management system stores, manages, and monitors data related to the permits controlled under the parking program.
    Type: Grant
    Filed: November 3, 2017
    Date of Patent: October 29, 2019
    Assignee: IPT, LLC
    Inventors: Cory D. Marchasin, Patrick J. Moynihan, Josiah D. Johnson, Lawrence Berman