Combination Changers Patents (Class 70/DIG44)
  • 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: 6021655
    Abstract: An all-in one tool usable by the locksmith in servicing of interchangeable core locks, for lock pin removal and decoding, and lock core repinning and recapping. The tool comprises a body having a central core receiving channel extending therethrough; a plurality of cylindrical bores extending through the body and perpendicularly intersecting the core receiving channel; and a receptacle receiving channel in the body located below and in communication with the core receiving channel; and a removable pin receiving receptacle slidably received in the receptacle receiving channel. The pin receiving receptacle has a plurality of pin receiving pockets extending perpendicularly from the core receiving channel of the body generally in alignment with the cylindrical bores. The pin receiving receptacle may take either of two forms: a hinged form that opens like a book to reveal the captured lock pins, or a solid block form that contains slots in which the captured pins are visible.
    Type: Grant
    Filed: January 26, 1999
    Date of Patent: February 8, 2000
    Assignee: Lab Security Systems Corporation
    Inventors: Robert A. Labbe, Gerald G. Roraback, Jr.
  • Patent number: 6021653
    Abstract: The opening of a sliding shackle permits removal of a stack of individual dial type tumbler rings each may possess a number of individual peripherally disposed indicia plates which are removable from each tumbler ring so removed from the body of the padlock. Each tumbler is keyed to permit opening of the lugged shackle in only one rotational orientation of each tumbler. The indicia plates may be interchanged either with others already on that tumbler, another tumbler, or with other indicia plates altogether. Alphabetic as opposed to numeric indicia are suggested, either fixed directly to the tumbler rings or upon separate indicia plates, of which a large supply may be provided together with the padlock so that a large number of letter combinations are available for the padlock opening combination code which may be set by the owner to a desired code word.
    Type: Grant
    Filed: February 12, 1999
    Date of Patent: February 8, 2000
    Inventor: William Pimpo
  • 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: 5520032
    Abstract: A combination padlock includes a plurality of dials longitudinally rotatably mounted in a casing of the padlock, and a plurality of read-out windows juxtapositionally formed in a narrow side portion of the casing to allow each read-out window to be adapted for displaying an unique numeral of each dial and linearly aligned to be a single row to correspond a plurality of numerals of a combination for unlocking the padlock, whereby upon rotation of the dials in the casing of the padlock, the correct combination will be easily recognized and observed through the single-row read-out windows linearly formed in the side portion of the padlock for conveniently unlocking the padlock. A reset mechanism is provided for temporarily locking the shackle when unlocked for freely performing the resetting operation in a fail-safe way by the user.
    Type: Grant
    Filed: December 16, 1994
    Date of Patent: May 28, 1996
    Inventor: Chong-Kuan Ling
  • Patent number: 5027623
    Abstract: A combination lock includes a lock body, having a hollow spindle laterally protruding outwardly, a locking bolt having a plurality of projections formed on the bolt insertably into the hollow spindle adapted for locking the lock, a plurality of dials normally coupled with sleeves rotatably mounted in the lock body having a plurality of annular corrugated teeth formed on an inner ring of each sleeve retarding the withdrawal of the projections of the bolt to prevent a trial opening by touch feeling by an intruder when rotating the dials in order to find out an opening slot formed in the sleeves for withdrawing the locking bolt, a plurality of positioner plates slidably held on the spindle for rotatably clickingly engageable with the sleeves for helping sensing a subsequent dialing operation from numeral to numeral; and a combination-changing plate pre-inserted in the locking bolt for pushing the sleeves inwardly to disengage their coupling with the dials for free rotation of dials for re-setting a new combinati
    Type: Grant
    Filed: October 15, 1990
    Date of Patent: July 2, 1991
    Inventor: Chong-Kuan Ling
  • Patent number: 4596125
    Abstract: The combination can be set by discs which are toothed on one of their faces. This toothing causes movement of internal bushes or rings which are at least partly contained in seats in a manually controllable slider, which can be moved against a spring when, having set the exact combination, a radial passage in said bushes or rings becomes disposed in a position such as to allow radial movement of the bushes and thus movement of the slider and opening of the lock. The combination can be changed by setting the existing combination and moving the slider and thus the rings, so that these latter disengage from the toothed discs which can thus be rotated into another position without dragging the bushes with them.
    Type: Grant
    Filed: January 7, 1985
    Date of Patent: June 24, 1986
    Assignee: C.G.V. S.a.s. di Claudio Castiglioni & C.
    Inventors: Claudio Castiglioni, Italo Azzalin