Cylinder Plug Stop Patents (Class 70/DIG62)
  • Patent number: 5865050
    Abstract: A locking cover for a dead bolt lock assembly that permits a user to put it in one of three positions: neutral, locked and unlocked. The cover in the neutral position permits the operation of the bolt lock assembly normally. The other positions limit the rotational travel of the actuating shaft to one quarter of a turn. The actuating shaft is rotated by turning the locking cover that includes a central tubular cylinder for selective engagement with the actuating shaft. A pin mounted on the interior of the cover is receivable within one of three holes on an annular base plate that limits the rotation of the actuating shaft.
    Type: Grant
    Filed: October 15, 1996
    Date of Patent: February 2, 1999
    Inventors: Yves Michaud, Alain Belanger
  • Patent number: 5737950
    Abstract: An ambidextrous vertical inverted handed cam lock for cabinet doors and drawers has a conventional pin tumbler cylinder and plug assembly. An arcuately movable bolt is journaled for rotation about a rearwardly extending portion of the plug. A conventional lazy cam drives the bolt. An arcuately repositionable bolt rotation limiter provides either left hand or right hand throws for the bolt while simultaneously allowing for inverted vertical use.
    Type: Grant
    Filed: November 3, 1995
    Date of Patent: April 14, 1998
    Assignee: Olympus Lock, Inc.
    Inventor: Hsu Yun-Bin
  • Patent number: 5561997
    Abstract: A cylindrical barrel type lock wherein rotation of the barrel is prevented by one or more armatures which are actuated by an electromagnet. Energization of the electromagnet causes the armatures to be withdrawn from engagement with the barrel, thereby permitting its rotation to open the lock.
    Type: Grant
    Filed: April 20, 1995
    Date of Patent: October 8, 1996
    Assignee: Marlok Company
    Inventor: Sheldon Milman
  • Patent number: 5437174
    Abstract: A lock system adapted to be used with both conventional mortise and cylinder locks includes an electronic socket to removably receive a button-like metal casing having an integrated circuit therein. The socket transmits code to a microprocessor based circuit which control a rotary two-directional motor. In one embodiment, the motor turns a cam which lifts, or lowers, a frame-like slide having a plunger which fits into a cavity of the cylinder to lock the cylinder.
    Type: Grant
    Filed: November 17, 1992
    Date of Patent: August 1, 1995
    Assignees: David Sokol, Kemal Aydin
    Inventor: Kemal Aydin
  • Patent number: 5377511
    Abstract: A padlock body is formed with a pair of bores which can receive short and long legs of a U-shaped shackle. The long leg has a free end spaced from a relatively deep notch and is formed between the free end and the notch with a relatively shallow circumferential groove and is further formed with a flat extending from a floor of the relatively shallow groove to the respective notch. Respective balls are displaceable between a locked position projecting radially far into the respective bores and engaging in the respective notches of both legs and an unlocked position with only the ball of the bore of the long leg projecting radially a little into the respective bore. A locking element in the body operated by a cylinder has an outer surface bearing radially on the balls and formed with relatively shallow recesses and, offset angularly from one of the shallow recesses, with a relatively deep recess.
    Type: Grant
    Filed: September 24, 1993
    Date of Patent: January 3, 1995
    Assignee: Abus August Bremicker Sohne KG
    Inventor: Gerhard Meckbach
  • Patent number: 5295376
    Abstract: A combinating tumbler lock featuring zero clearance between the lock plug and mounting shell including: a mounting shell having a central throughbore with a front section having a first, greater diameter and including longitudinal locking grooves, a rear section having a second smaller diameter and including longitudinal stopping grooves, and a tapered transition section between the front and rear sections; a lock plug for selective rotation within the mounting shell and having three sections corresponding in diameter to the sections in the mounting shell, the lock plug front section including a tumbler receiving opening, the lock plug rear section including a cam-receiving structure and a first radial throughbore, the lock plug also including a second radial throughbore between the front section and the tapered section; a tumbler disposed in the lock plug for selective engagement with the longitudinal locking grooves of the shell; a spring loaded stop comprising two spherical balls actuated by a compression
    Type: Grant
    Filed: April 22, 1993
    Date of Patent: March 22, 1994
    Assignee: Fort Lock Corporation
    Inventor: Gary L. Myers
  • Patent number: 5199282
    Abstract: An improved padlock comprises a lock body and a shackle. The lock body is provided with a tubular bushing containing a rotating rod capable of being actuated by a lock core. The shackle comprises two insertion ends having retaining grooves. As shackle is inserted into the lock body, the retaining grooves engage securely the rotating rod of the lock body to complete the locking process. The unlocking process is accomplished by actuating the rotating rod to disengage the retaining grooves of the shackle.
    Type: Grant
    Filed: November 27, 1991
    Date of Patent: April 6, 1993
    Inventor: Ropin Wang
  • Patent number: 5152161
    Abstract: A cam lock having an adjustable cam bolt. The cam lock has a tubular lock case, a tumbler, a shaft, a spring, and a cam bolt. The tubular lock case has an inner flange which divides the lock case into a first portion and a second portion which is formed with a restricting element. The tumbler is received in the first portion. The shaft is rotated by the tumbler and extends into the second portion. The spring is disposed around the shaft within the second portion. The cam bolt is mounted on the shaft by threaded engagement so as to compress the spring and has an arc-like cutoff beyond which the restricting element extends.
    Type: Grant
    Filed: January 21, 1992
    Date of Patent: October 6, 1992
    Assignees: ABA Locks Manufacturer Co., Ltd., Jin Tay Industries Co., Ltd.
    Inventor: Miko Lee
  • Patent number: 4807454
    Abstract: Locking means for preventing displacement of a displaceable member relative to a stationary member by means of an armature operatively associated with an electromagnet, the armature having a bipartite structure: a locking pin member engageable with the displaceable member and a sleeve member coaxially surrounding the locking pin member located on an end of an armature extending from the electromagnet. A plurality of radially mobile balls interact within bores in a portion of the stationary member extending between the locking pin member and the sleeve member to engage grooves in the locking pin member to lock or secure same in a position in which the locking pin member is engaged with the displaceable member. Selective energization of the electromagnet selectively positions the sleeve member and a groove located within an interior wall of the sleeve member to selectively limit radial movement of the balls. In a deenergized state, the electromagnet permits axial displacement of the locking pin member.
    Type: Grant
    Filed: April 18, 1988
    Date of Patent: February 28, 1989
    Assignee: Zeiss Ikon AG
    Inventors: Pritimay Sengupta, Ewald Kornmayer
  • Patent number: 4761976
    Abstract: A lock cylinder with mechanical and electromagnetic locking mechanisms, comprising a lock cylinder stator having a mechanical locking mechanism, a bolt movably mounted in a groove in the stator, and a lock cylinder rotor rotatably coupled to the stator and engaged by the mechanical locking mechanism. An electrical control mechanism controls movement of the bolt. A retaining mechanism coupled to the rotor releasably engages the bolt to permit and prevent movement between the stator and the rotor depending on the position of the bolt.
    Type: Grant
    Filed: November 28, 1983
    Date of Patent: August 9, 1988
    Assignee: Bauer Kaba AG
    Inventor: Arno Kleinhany
  • Patent number: 4637234
    Abstract: A cartridge lock having an elongated body and a rotary disc assembly, locking shaft, and at least one bolting element disposed therein. The rotary disc assembly comprises a plurality of discs aligned concentrically within a cylinder, which cylinder is interconnected to one end of the locking shaft by means transmitting turning force thereto. The bolting element is disposed within an aperture within the body and is moved to a position partially protruding therefrom when a bearing surface of the locking shaft is rotated and presented to the bolting element. The rotation of the locking shaft is determined by key action turning the rotary disc assembly from a locked to an unlocked position and the reverse.
    Type: Grant
    Filed: August 13, 1984
    Date of Patent: January 20, 1987
    Assignee: Oy Wartsila AB
    Inventor: Pekka A. Mielonen
  • Patent number: 4633689
    Abstract: An actuating structure is provided for a switch lock having a barrel with a plug which is key actuated for rotation therein. An actuator interconnects the rotatable plug with a rotatable shaft of the switch and cooperates with a rotatable stop plate connected to a return spring. Specifically, an actuator lug and a stop plate surface which engage upon rotation of the plug in one direction to turn the switch momentarily from the first position to a second position against the action of the spring. The actuator also rotates in the opposite direction independently of the stop plate to turn the switch from the first to a third position.
    Type: Grant
    Filed: September 4, 1984
    Date of Patent: January 6, 1987
    Assignee: The Eastern Company
    Inventors: Stanley C. Wolniak, Timothy P. Laabs, Richard H. Schulz, Jr.
  • Patent number: 4603564
    Abstract: A magnetic bolt has a movable and electromagnetically operable locking member which, in conjunction with a locking part arranged on the rotor of a lock cylinder, blocks or releases the rotor, independently of the mechanical tumblers depending on whether the locking member is located in a free-running slot or a locking notch of the locking part. The magnetic bolt is arranged in a recess in the lock cylinder stator and provides an electromagnetic locking operation by energizing a field coil.
    Type: Grant
    Filed: January 31, 1983
    Date of Patent: August 5, 1986
    Assignee: Bauer Kaba AG
    Inventors: Arno Kleinhany, Walter Gutmann
  • Patent number: 4425770
    Abstract: A steering lock assembly for use in an automobile comprises a cylinder lock plug for controlling an ignition switch assembly with a mating key inserted in the cylinder lock plug and a steering shaft lock operatively associated with the cylinder lock plug for selectively locking and unlocking an automobile steering shaft. The cylinder lock plug comprises a key-operated barrel and the steering shaft lock comprises a locking member. As an element for transmitting rotation of the barrel, which is effected by turning the mating key inserted therein, to the locking member, a cam member is utilized, which cam member is integrally formed with the barrel.
    Type: Grant
    Filed: April 6, 1981
    Date of Patent: January 17, 1984
    Inventors: Akiyoshi Mentani, Hiromasa Nakamoto
  • Patent number: 4138870
    Abstract: A lock cylinder having a key plug stop comprising an elongated arcuately formed wire received in an annular groove in the key plug. One end portion of the wire stop is retained in a slot in the cylinder shell. Opposite end portions of the stop are disposed in the path of the key and cooperate with the key to limit rotation of the plug relative to the cylinder shell. The stop may be assembled with the plug in either of two positions to selectively limit angular movement of the plug in either a clockwise or counterclockwise direction from a key withdrawal position.
    Type: Grant
    Filed: July 11, 1977
    Date of Patent: February 13, 1979
    Assignee: Emhart Industries, Inc.
    Inventor: Armand C. Poirier
  • Patent number: 4012928
    Abstract: A lock device includes a housing and a removable cylinder normally retained in the housing by a rotatable retainer ring. The retainer ring is driven by a shifter and cylinder change key between a locked and unlocked position. The retainer ring is normally biased to the locked position so that tabs associated with the retainer ring will engage appropriate locking channels of the cylinder and retain the cylinder in fixed position in an opening of the housing.
    Type: Grant
    Filed: February 27, 1976
    Date of Patent: March 22, 1977
    Assignee: Keystone Consolidated Industries
    Inventor: Robert L. Dauenbaugh