Both Legs Engaged Patents (Class 70/38A)
  • Patent number: 5195340
    Abstract: A lock device includes a hollow cylindrical rod body with two retaining holes. The rod body has a closed end and an open end. A key plug assembly includes a tubular outer housing fixed in the open end of the rod body, and a push rod extending through the outer housing and movable in the outer housing between an unlocking position, where a portion of the push rod extends from the outer end of the outer housing, and a locking position, where the push rod extends from the inner end of the outer housing. In the rod body, a resilient element pushes a locking plate assembly toward the key plug assembly. When the push rod is pushed inward and is locked in the locking position in the outer housing, the resilient element is compressed between the locking plate assembly and the end wall of the rod body so that two notched lock bars extend through the retaining holes and the small-sized portions of the locking holes in the locking plate assembly, thereby preventing removal of the lock bars from the rod body.
    Type: Grant
    Filed: March 6, 1992
    Date of Patent: March 23, 1993
    Assignee: Chang-Jie Industrial Co., Ltd.
    Inventor: Tzong-Chyuan Huang
  • Patent number: 5189893
    Abstract: A shackle lock, particularly with a long shackle, comprises a lock body and a lock shackle with two shackle arms, the free end portions of which are displaceable into a shackle arm housing of the lock body until they reach a locking position of the lock shackle. A lock mechanism is rotatable about an axis of rotation, particularly by a key. Disposed in the lock body is at least one locking element which meshes with the closure mechanism and which, upon actuation of the closure mechanism, is guided for movement out of a lock shackle arresting position in which the locking element is in engagement with the end portion of at least one shackle arm for locking the lock shackle and for movement into a lock shackle releasing position in which the locking element is out of arresting engagement with the end portion of the shackle arm. In this lock shackle releasing position the shackle arm can be withdrawn completely from the shackle arm housing.
    Type: Grant
    Filed: June 24, 1991
    Date of Patent: March 2, 1993
    Assignee: Aug. Winkhaus GmbH & Co. KG
    Inventor: Ludger Kortenbrede
  • Patent number: 5186029
    Abstract: An easily assembled padlock with relatively few parts which include an outer casing, an insert shell having a pedestal with a lock plug bore for insertion into the casing, a U-shaped shackle, a lock bolt means actuated by a spring means and having an "assembly" position, a "locked" position and an "unlocked" position, a key operated lock plug for engaging and moving the lock bolt means in the insertable shell bore and a mutual engageable detent means for limiting movement of the lock plug and lock bolt means within the shell bore to only the locked or unlocked positions after assembly. Assembly of the padlock is relatively easy as the components are designed to fit together and be held in place with minimal assembly operations.
    Type: Grant
    Filed: September 27, 1991
    Date of Patent: February 16, 1993
    Assignee: Fort Lock Corporation
    Inventor: Gary L. Myers
  • Patent number: 5174136
    Abstract: A padlock with removable cylinder mechanism offers the user a choice of two distinct manners of operation or "functions"--a Key Retaining function and a Non-Key Retaining function. This dual function capability in a single unit is achieved by a rotator bolt bored to allow placement of a pattern of pins. A series of pins, which when installed in the rotator bolt in a specified pattern, causes the function selection to be accomplished. A re-keyable padlock which accepts widely available, standard dimensioned, generic key operated lock cylinders allowing the keying of this padlock to be adapted to the wide range of keying systems used in locks found in residential, commercial and other uses as required for security and convenience. The use of standard dimensioned cylinders in the padlock is accomplished by a cylinder retainer, tailpiece stop and rotator bolt which adapts the generic cylinder to padlock use.
    Type: Grant
    Filed: October 4, 1991
    Date of Patent: December 29, 1992
    Inventor: Randy L. Thwing
  • Patent number: 5148690
    Abstract: A pickproof lock assembly has two lock sections which can be opened by a single key. The first lock section includes a key plug and a first set of tumbler members which engage radial pits provided on the key so as to disengage the key plug from the lock shell. The second lock section includes first and second movable plug halves disposed inside the lock shell and a second set of tumbler members. The key has axially extending curve protrusions on one end to move the first and second plug halves and align groove-free spaces on the surface of the first and second plug halves to form a continuous annular path. The second set of tumbler members contacts the first and second plug halves at the annular path to permit rotation of the key plug relative to the lock shell.
    Type: Grant
    Filed: June 18, 1991
    Date of Patent: September 22, 1992
    Inventor: Ruei-Fang Wang
  • Patent number: 5140836
    Abstract: A clamp for use as a theft deterrent device includes a U-shaped member having first and second legs, with each leg including a shelf disposed on the inside edge of the member and extending laterally toward the opposite leg; a housing defining a pair of longitudinal channels for receiving the legs of the U-shaped member and a slot extending between the longitudinal channels; a pair of overlapping plates disposed for separate movement within the slot into and away from different ones of the longitudinal channels, with each plate including a row of teeth disposed on a longitudinal edge of the one plate that moves into one channel for engaging the shelf on one leg of the U-shaped member received by said one channel to prevent removal of the one leg from the channel.
    Type: Grant
    Filed: September 19, 1991
    Date of Patent: August 25, 1992
    Assignee: Security Tag Systems, Inc.
    Inventors: Dennis L. Hogan, Donald J. Beach
  • Patent number: 5123267
    Abstract: Disclosed is a lock for securing the U-shaped member of a hasp-type latch assembly, and which lock has an outer protective case having a front wall with elongated aperture therein that can receive the U-shaped member, and the case enclosing a pair of pivotally mounted arms and the first of the arms having a locking tap that is spaced opposite a locking tab of the second arm and aligned one to each side of the apertures, and the lock having an open position in which a segment of the U-shaped member can be inserted through the aperture and past the spaced-apart locking tabs, and a closed position in which the locking tabs are moved towards each other bringing opposing edges of the blades into engagement to secure the U-shaped member.
    Type: Grant
    Filed: May 28, 1991
    Date of Patent: June 23, 1992
    Inventor: Paul Appelbaum
  • Patent number: 5101646
    Abstract: The invention provides a lock having a thick U-shaped shackle, a transverse housing for receivably locking extending ends of the shackle, a pair of longitudinal members which lockably intersect the shackle ends and which are actuated by a lock protected within the intermediate portion of the housing. In an exemplary embodiment of the invention, the shackle and housing are constructed of substantially thick tubular metal, and the shackle ends may be conformed to openings in the housing. The longitudinal members may be extended post members which intersect inserted shackle ends or may be forked members which slidably engage flat portions on inserted shackle ends. The locking mechanism may be activated through a rack-and-pinion, cam-and-pin, or similar assembly, and may further comprise shackle ends having flat sections conformed to the housing openings to prevent rotation. The compact and integral design affords improved resistance to tampering such as by shattering or cutting/twisting methods.
    Type: Grant
    Filed: March 7, 1991
    Date of Patent: April 7, 1992
    Inventors: David S. Goldman, Craig L. Krigsman
  • Patent number: 5009087
    Abstract: A lock device in the form of a padlock has a shackle and a retaining cable connected to the lock case. The shackle has a heel-piece permanently retained slidably and rotatably in the case of the padlock and is urged upwardly in the unlocked position by a spring. The retainer cable has a yoke at one end which is received in a slot in the side of the lock case and captured within the case by the lower portion of the shackle which slides up and down through the yoke as the shackle is moved up and down between the locked and unlocked positions. The free end of the retaining cable may be secured to a convenient structure in close proximity to where the lock will be used to maintain the lock at the use location whereby the lock may be secured at the use location either in its locked or unlocked condition.
    Type: Grant
    Filed: August 20, 1990
    Date of Patent: April 23, 1991
    Inventor: Royal B. Long
  • Patent number: 4998422
    Abstract: A padlock configured to accept a removable lock core is provided with a shackle and bolt mechanism for locking the shackle. The bolt mechanism is configured to be retainable in the padlock case during shipment of the padlock without its removable lock core. In addition, a tool is provided for releasing and removing the bolt mechanism easily from a secure position inside the padlock to disassemble the padlock for repair.
    Type: Grant
    Filed: August 30, 1989
    Date of Patent: March 12, 1991
    Assignee: Best Lock Corporation
    Inventors: James W. Borgmann, William R. Foshee, deceased
  • Patent number: 4938039
    Abstract: It is an improved padlock structure, in which the actuating mechanism is particularly designed to include a lock cylinder and, an actuating assembly; the actuating assembly further includes a T-shaped bolt, a front guide plate, a rear guide plate, a return spring, and a cam member with two steel balls. The major features of this lock are its single structure and having little or no trouble in use.
    Type: Grant
    Filed: May 9, 1989
    Date of Patent: July 3, 1990
    Inventor: Lo Tzung-I
  • Patent number: 4918950
    Abstract: A lock includes a padlock housing and an interchangeable core including a core body, a core sleeve, and a key plug having a key slot. A bridge member is provided on a flange of the key-way disc to cover a portion of the longitudinal opening of the key slot in the key-way disc. A cylinder cap is mounted on the lock core by a flange and slot connection for removal therewith by a control key which releases control lugs on the lock core from the lock housing cap is used with a lock cylinder, a cylinder ring having a groove in an interior wall that opens toward either the cylinder cap or the lock cylinder is also provided. The exterior surface and the circumferential groove of the cylinder ring are case hardened.
    Type: Grant
    Filed: February 21, 1989
    Date of Patent: April 24, 1990
    Assignee: Best Lock Corporation
    Inventor: William R. Foshee
  • Patent number: 4918949
    Abstract: A lock having a shackle and housing in which the shackle is a symmetrical, U-shaped member with spaced, parallel, identically configured legs having free ends, and the housing has a pair of spaced openings in one side thereof for receiving the free ends of the shackle. Either end of the shackle may be inserted into either opening, and detent means are provided in the housing in association with the openings to retain the ends of the shackle in the openings. One of the detent means is fixed and the other has a movable portion to enable the associated end of the shackle to be engaged and disengaged relative thereto. A lock mechanism in the housing is operable to secure the movable detent means against movement to lock the shackle in the housing. In one form of the invention, a reinforcing sleeve is placed around the housing in the area of the lock mechanism to prevent damage to the housing and lock mechanism.
    Type: Grant
    Filed: March 25, 1988
    Date of Patent: April 24, 1990
    Assignee: Rhode Gear USA
    Inventor: Dixon Newbold
  • Patent number: 4841753
    Abstract: A padlock having a "U" shaped shackle, a main body having an opening to receive at least one leg of the shackle, the main body having an interior which defines a recess within which a lock bolt body can be threadedly admitted, the lock bolt body having one catch to engage at least one leg of the shackle. A key rotates the lock bolt body between a locked, an unlocked, and a disassembled position.
    Type: Grant
    Filed: April 18, 1988
    Date of Patent: June 27, 1989
    Inventor: Victor L. Patton
  • Patent number: 4838051
    Abstract: A padlock and key assembly includes a padlock and a cylindrical key. The padlock includes a lock body, and a key plug which is locked in the lock body by transversely movable tumbler units and vertically movable tumbler plate units. The key includes annular grooves formed in its outer surface, and push blocks extending radially from the key. When the key is inserted into the key plug, the annular grooves engage with the tumbler pin units and the push blocks engage with the tumbler plate units so that the key plug is unlocked from the lock body, thereby enabling the key plug to rotate with the key.
    Type: Grant
    Filed: April 27, 1988
    Date of Patent: June 13, 1989
    Inventor: Yaw-Mein Yang
  • Patent number: 4829795
    Abstract: In accordance with the present invention, an anchor assembly is described for use in association with double- and single-keeper padlocks that substantially strengthens such padlocks to withstand prying leverage moments applied at the crown of the shackle. Such padlocks have an upper registry surface through which a shackle disconnectably connects to define locking and unlocking positions.
    Type: Grant
    Filed: February 9, 1988
    Date of Patent: May 16, 1989
    Assignee: Lock-R-Lock, Inc.
    Inventor: Jewell Taylor
  • Patent number: 4823567
    Abstract: A padlock having a "U" shaped shackle, a main body having an opening to receive at least one leg of the shackle, the main body having an interior which defines a recess within which a lock bolt body can be threadedly admitted, the lock bolt body having one catch to engage at least one leg of the shackle. A key rotates the lock bolt body between a locked, an unlocked, and a diassembled position.
    Type: Grant
    Filed: April 18, 1988
    Date of Patent: April 25, 1989
    Inventor: Victor L. Patton
  • Patent number: 4811578
    Abstract: A padlock comprises a battery-powered, built-in alarm which operates when the padlock's shackle is severed or forced open. The battery and alarm can be tested by opening the lock with a key, rotating the short leg of the shackle away from the lock body and then depressing the shackle, or optionally, by depressing the short leg. The alarm is turned on in response to the momentary closing of a switch when one shackle leg moves outwardly upon severance or forcible opening. The alarm may be an audible signal or an inaudible signal transmitted as a radio wave to a remote receiver at which an audible or visible signal is actuated. The audible signal generated at the lock escapes from the lock body through sound ports. Both audible and inaudible signals may be generated at the lock simultaneously.
    Type: Grant
    Filed: January 18, 1985
    Date of Patent: March 14, 1989
    Assignee: John F. Masoncup
    Inventors: John F. Masoncup, Thomas J. Mayer
  • Patent number: 4776187
    Abstract: A changeable key cylinder padlock including a padlock casing, a shackle moveable between a lower locking position and a upper release position, the casing having a central substantially cylindrical cavity therein located between the sockets shaped to receive and removably house a key lock cylinder. The lock cylinder located in the plug cavity has a first key position and is operable by a operator key and control key to rotate to second and third key positions respectively. Locking spheres are positioned when the lock cylinder occupies the first key position to hold the shackle in the lower locking position and release the shackle at the second and third key positions for movement to said upper release position.
    Type: Grant
    Filed: May 27, 1987
    Date of Patent: October 11, 1988
    Assignee: Sargent & Greenleaf, Inc.
    Inventors: Walter R. Evans, Gregory C. Lainhart
  • Patent number: 4773239
    Abstract: A lock and trick device particularly designed for mounting to a skateboard in order to lock the skateboard to a fixed structure such as a bicycle rack or post, wherein the device comprises a lock body member which is fixedly mounted between the board of the skateboard and one of the wheel truck assemblies, the lock body being provided with a pair of oppositely disposed longitudinal bars to receive leg members of an adjustable U-shaped shackle, the looped end of which is bent at right angles to the legs thereof, thereby forming a trick handle.
    Type: Grant
    Filed: January 28, 1987
    Date of Patent: September 27, 1988
    Inventors: Gordon M. Lowe, Patrice P. Lowe
  • Patent number: 4763496
    Abstract: A changeable key plug type padlock including a padlock body formed as an upper body section and a lower body section defining a pair of companion relatively displaceable body sections having correspondingly shaped outer peripheries in cross-section forming continuations of each other in aligned registered relation. The padlock casing has laterally spaced sockets disposed partially in both companion body sections opening through the upper portion of the padlock body for receiving legs of a shackle and a central substantially cylindrical plug cavity located between the sockets.
    Type: Grant
    Filed: May 27, 1987
    Date of Patent: August 16, 1988
    Assignee: Sargent & Greenleaf, Inc.
    Inventors: Walter R. Evans, Gregory C. Lainhart
  • Patent number: 4748832
    Abstract: A padlock having a "U" shaped shackle, a main body having an opening to receive at least one leg of the shackle, the main body having an interior which defines a recess within which a lock bolt body can be threadedly admitted, the lock bolt body having one catch to engage at least one leg of the shackle. A key rotates the lock bolt body between a locked, an unlocked, and a disassembled position.
    Type: Grant
    Filed: April 3, 1987
    Date of Patent: June 7, 1988
    Inventor: Victor L. Patton
  • Patent number: 4730467
    Abstract: A combination lock having both dial and key locking mechanisms and having long and short shackle legs which lock has a body containing a reciprocal cam plate for moving steel balls into and out of engagement with the shackles from lock to unlock position. An extending arm mounted on the cam plate engages the dial and key control means having a second extending arm is also engageable with the cam plate. The lock includes a spring upset arrangement.
    Type: Grant
    Filed: February 5, 1986
    Date of Patent: March 15, 1988
    Assignee: Master Lock Company
    Inventor: Horst Lebrecht
  • Patent number: 4720987
    Abstract: A multi purpose lock device is provided to be used with a hanger and other items such as a flashlight, radio, tape recorder, first aid kit, exit light, piggy bank, clock and smoke alarm or burglar alarm. The lock consists of a housing affixed to one of such items and a shackel which can be locked around any suitable pole, abutment, doorknob or the like.
    Type: Grant
    Filed: June 2, 1986
    Date of Patent: January 26, 1988
    Inventor: Ronald Moss
  • Patent number: 4658606
    Abstract: A new lock center combined with a cylindrical barrel for use in a padlock. The padlock is provided with a key having a plurality of arc-shaped teeth which can engage a corresponding number and shape of slots in the lock center. Two resiliently retained pins located in aligned vertical pin holes in the barrel and lock center prevent relative rotation of the lock center and barrel. However, by inserting and rotating the key in the lock center, the arc-shaped teeth of the key engage the pins and align the line of contact between the two pins with the line of contact between the lock center and the cylindrical barrel, thereby permitting the lock center to rotate relative to the barrel. Upon rotation of the lock center, the thinner shoulder of the upper part of the lock center is rotated between two steel balls, which then can roll out of contact with the lock shackle toward the thinner shoulder and permit the shackle to be open by spring pressure.
    Type: Grant
    Filed: August 16, 1983
    Date of Patent: April 21, 1987
    Inventor: Chin-Shan Tseng
  • Patent number: 4584855
    Abstract: A pick-proof u-bolt type lock is disclosed with an untypical location for containing its cylinder lock. A tube, comprising a housing, has openings near its ends that accept the ends of a shackle which are secured within that housing. A cylinder lock is located between the shackle openings and an access port is provided to it for insertion and withdrawal of the key. A matching port on a collar that rotates around the housing is positioned to shut off that access, or to allow it selectively.Cooperating parts attached to, and effecting the operation of the lock, work to make the lock inoperable while access to the keyhole is available; and allow normal function of the lock when rotation of the collar prevents access. The key is not turned by finger grip, but instead, affecting the closure, turns the key and plug operating the cylinder lock and releasing the shackle at one end. The remaining end is freed as it swings clear of a securing pin in the other end of the housing.
    Type: Grant
    Filed: June 29, 1983
    Date of Patent: April 29, 1986
    Inventor: Glen Burlingame
  • Patent number: 4551997
    Abstract: An improved laminated padlock which includes: a lock body made of a plurality of metal plates with a central chamber and a number of openings formed therein; a cylindrical lock barrel matched with a tumbler structure disposed in the central chamber of the lock body; an improved locking mechanism movably installed in a housing structure in the upper portion of the central chamber; and a U-shaped shackle with facing notches slidingly provided in the openings of the lock body. The improved lock mechanism comprises a pair of lock members identically formed in an I-shaped structure, and a pair of elastic members also identically shaped so that a simpler structure and ab effective operation are achieved therewith.
    Type: Grant
    Filed: January 17, 1984
    Date of Patent: November 12, 1985
    Inventor: Chung-I Huang
  • Patent number: 4545223
    Abstract: A padlock, which comprises a lock casing and a basically U-shaped shackle slidable therein between a closed and an open position. The shackle has two legs of different length, of which at least one is provided with a locking notch. The padlock also comprises a cylinder lock mechanism, operable by a key, and at least one locking member coacting with a guiding portion of a turnable member of the cylinder lock mechanism for locking the shackle to the lock casing. The locking member is movable dependent on the angular position of the guiding portion of the cylinder lock mechanism between a locking and a releasing position. The releasing position allows the shorter shackle leg to completely slide out from the lock casing. A retaining member is attached to the lock casing in order to keep the cylinder lock mechanism properly fitted in the lock casing. The removal of the retaining member from the lock casing requires turning of the retaining member in relation to the lock casing.
    Type: Grant
    Filed: February 7, 1983
    Date of Patent: October 8, 1985
    Assignee: Oy Wartsila Ab
    Inventors: Heikki Poutiainen, Henrikki Malminen
  • Patent number: 4528828
    Abstract: A padlock comprises a lock casing and a basically U-formed shackle slideable therein between a closed and an open position. The padlock has two legs of different length, each provided with a locking notch. The longer leg has a head that is somewhat thicker than the general part of the leg for keeping the shackle engaged in the casing in its open position. There is also a cylinder lock mechanism, operable by a key, and locking members coacting with a guiding portion of a turnable member of the cylinder lock mechanism for locking both legs of the shackle to the lock casing. The locking members are movable dependent on the angular position of the guiding portion of the cylinder lock mechanism between a locking and a releasing position. The releasing position allows the shorter shackle leg to completely slide out from the lock casing.
    Type: Grant
    Filed: January 7, 1983
    Date of Patent: July 16, 1985
    Assignee: Oy Wartsila Ab
    Inventor: Heikki Poutiainen
  • Patent number: 4419873
    Abstract: A padlock having a body in which a removable lock cylinder is fastened by a removable cylinder guard plate is provided with retainer means for optionally retaining a lock suspension chain, the suspension chain including links having link apertures and the retainer means including a slot in the guard cylinder plate which receives an end link with a detent of the retainer means located in the link aperture, the assembly and fastening of the cylinder guard to the padlock body trapping and retaining the optionally assembled suspension chain to the padlock.
    Type: Grant
    Filed: June 29, 1981
    Date of Patent: December 13, 1983
    Assignee: Phillip L. Alfed
    Inventor: Riley M. Sopko
  • Patent number: 4345447
    Abstract: A laminated padlock includes a J-shaped shackle with a U-shaped locking plate and a T-shaped locking plate, the leg of the T-shaped locking plate being slidably fitted between the spaced legs of the U-shaped locking plate.
    Type: Grant
    Filed: November 3, 1980
    Date of Patent: August 24, 1982
    Inventors: Poon C. Keung, Yiu Fu
  • Patent number: 4290279
    Abstract: A padlock comprising a body having a pair of parallel bores therein adapted to receive the legs of a shackle, and a shackle having a pair of parallel legs slidably received in said bores. A locking means is positioned within the padlock body to secure the shackle in the body when the legs are depressed into the bores. An interchangeable means, such as a standard cylinder lock, is provided for releasing the locking means and includes key-operated means operable by turning movement of a key to effect the release of the shackle from the locking means to allow one of the shackle legs to withdraw from the padlock body. The padlock body has an opening to receive the interchangeable means to permit positioning the interchangeable means within the padlock body. Detachable cover means adapted to close the opening is provided. Fastener means, such as a screw member, operable from within the body, is engageable in fastening relation with the cover means.
    Type: Grant
    Filed: July 14, 1980
    Date of Patent: September 22, 1981
    Assignee: Unican Security Systems, Ltd.
    Inventors: Aaron M. Fish, Jean-Paul Dausseing
  • Patent number: 4290280
    Abstract: Padlock made of a body cast as a frame block having a cylinder assembly space and shackle holes. The assembly space has securing members extending thereinto. A semi-circular shackle has a center portion and two ends which are slidable through the shackle holes and co-act with locking edges of locking bars. The locking bars together with operatively associated cam form the locking member unit which is housed in the assembly space. A cylinder assembly unit is operatively associated with the cam and comprises the usual pin and spring tumbler unit. A closing member seals the bottom of the padlock. Portions of the frame block can extend up around the shackle covering all but the center portion.
    Type: Grant
    Filed: March 23, 1979
    Date of Patent: September 22, 1981
    Inventor: Sun Y. Yun
  • Patent number: 4241594
    Abstract: A changeable plug exposed shackle padlock comprising a padlock casing and a U-shaped shackle having legs with locking notches interfitting in sockets in the upper end of the casing. A key lock plug is removably received in a plug cavity in the casing and an elongated slideway cavity overlying the plug cavity extends through one end of the padlock casing outwardly adjacent the socket for the shorter leg and receives a reciprocative slidable cover member in its upper portion extending in covering relation over the plug cavity with a hole for the shorter shackle leg registering with the socket for that shackle leg when said slide member is in covering relation to the plug cavity. A slidable bolt plate member is guided for longitudinal sliding movement between locking and release positions in the lower portion of the slideway and has locking shoulders engageable in the locking notches of the shackle legs as is driven from the key lock plug.
    Type: Grant
    Filed: September 4, 1979
    Date of Patent: December 30, 1980
    Assignee: Sargent & Greenleaf, Inc.
    Inventors: Harry C. Miller, Walter R. Evans
  • Patent number: 4188808
    Abstract: A bicycle lock mountable on the frame of a bicycle and including a body which stows a "U" or "J" shaped member and a cable or other flexible securing mechanism when not in use. Both are removable from the body with the "U" or "J" shaped member movable into a position encircling a rim of a wheel on the bicycle to prevent it from movement. The cable or the like is movable to encircle a support to which the bicycle may be locked. The cable terminates one end in the body of the lock and the other end in the "U" or "J" shaped member. An integral lock holds the "J" shaped member in fixed relationship with the body and covers or conceals the mechanism securing the body to the frame and bicycle. A retraction mechanism maintains the cable within the body except to the extend withdrawn for locking purposes. In alternate embodiments the cable encircles the lock body for storage. An integral mounting bracket is illustrated as well as a permanently mounted bracket used with a removable lock assembly.
    Type: Grant
    Filed: November 14, 1977
    Date of Patent: February 19, 1980
    Inventor: Albert H. Valdez
  • Patent number: 4185478
    Abstract: Certain types of key-operated padlocks are provided with warded inserts accessible for key insertion through an opening in the bottom of the padlock body. In the present structure when the proper key is inserted into the warded insert (housed within the padlock body) the cuts in an edge of the key shank match and register with similar cuts or notches in the insert permitting the key to be turned with the specially formed tip of the key engaging a web on the bottom of the plug extension blade within the lock body with special cuts or notches and nodules in and on the key tip engaging companion formations in and on the bottom of the plug extension whereby turning movement of the key will turn the plug extension to the extent necessary to retract certain shackle holding levers and thus release the padlock shackle.
    Type: Grant
    Filed: July 17, 1978
    Date of Patent: January 29, 1980
    Assignee: Master Lock Company
    Inventor: Earl G. Stintzi
  • Patent number: 4138868
    Abstract: In a padlock having a ball-locked shackle and a removable key-operated cylinder:A cam retaining means consisting of a serrated pin in combination with a coiled spring;A shackle retaining means comprising a tapped shackle end and a threaded flanged member in conjunction with a ball and cam detent.
    Type: Grant
    Filed: August 19, 1977
    Date of Patent: February 13, 1979
    Inventor: Frederick F. Richards, Sr.
  • Patent number: 4112715
    Abstract: A padlock construction which is adaptable to selectable lock cylinder and key combinations includes a hollow padlock body for receiving a selected lock cylinder, a cylinder guard for removably retaining the lock cylinder within the padlock body, a removable shackle bar and a compatible locking pawl for mating interengagement with the lock cylinder and for removably retaining the shackle bar within the padlock body.
    Type: Grant
    Filed: February 10, 1977
    Date of Patent: September 12, 1978
    Assignee: Klaus W. Gartner
    Inventor: Tim M. Uyeda
  • Patent number: 4098100
    Abstract: A laminated padlock includes a pair of coplanar locking plates slidable into locking positions in engagement with the two legs of a J-shaped shackle and a separate coupling member positioned between the lock barrel and the locking plates to prevent picking of the lock by means of a tool inserted through the key slot in the lock cylinder.
    Type: Grant
    Filed: April 20, 1977
    Date of Patent: July 4, 1978
    Inventor: Man Wah
  • Patent number: 4064716
    Abstract: A lock formed of a bar and a shackle whose legs extend into transverse holes formed in the bar. A rotatable bolt extends within and is completely concealed within the bar and overlaps the leg portions located within the bar. Aligned notches in the legs and bolt permit the bolt to be rotated into a position wherein peripheral portions thereof extend within the leg notches for locking the legs within the bar, and to a second position wherein the bolt notches align with the legs for transverse movement of the legs relative to the bar for unlocking. Locking means arranged within the bar permit selective manual rotation of the bolt. The shackle and bar may be formed of a saw resistant material to form a closed, saw resistant loop.
    Type: Grant
    Filed: April 5, 1976
    Date of Patent: December 27, 1977
    Assignee: The Shwayder Company
    Inventors: Warren M. Shwayder, John T. Loftus
  • Patent number: 4063435
    Abstract: A closure for a padlock body containing a removably fixed lock cylinder primarily comprising a circular member having a concave recess in its perimeter coacting with the shorter leg of the padlock's shackle at the top of the padlock, the underside of the said member having a bayonet-like latch preventing the member from being withdrawn from the top of the padlock via coacting with the interior of the padlock body wherein the aforesaid lock cylinder is enclosed unless the member is rotated a predetermined amount, and the rotation of the member being prevented by the said leg of the shackle being in its proper socket in the body of the padlock in its locked position. The keyway to the lock cylinder for locking and unlocking the padlock is in the bottom of the padlock extending into the padlock body as is well known in the art.
    Type: Grant
    Filed: October 1, 1976
    Date of Patent: December 20, 1977
    Inventor: Roy N. Oliver
  • Patent number: 4038845
    Abstract: The invention is an automobile security apparatus for securing the steering wheel of an automobile to its steering housing thereby inhibiting theft of the automobile. The automobile security apparatus includes a locking assembly, a steering wheel lock for securing the steering wheel, and a steering housing connector for securing the locking assembly by two bolts to the steering housing of the automobile. When the steering wheel lock has been inserted into the locking assembly, its ends block access to the bolts connecting the locking assembly to the steering housing connector.
    Type: Grant
    Filed: July 12, 1976
    Date of Patent: August 2, 1977
    Inventor: Nathan Szlakman
  • Patent number: 4019354
    Abstract: A lock adapted to engage links of a chain of a motorcycle or the like to prevent theft. A main body has at one end a plate detachably secured thereto, said plate having an open position at which it is detached from said body and having a closed position at which it is secured to said one end of said body. The body and the plate, when the plate is in closed position, cooperate to define the boundary surfaces of a chain receiving channel open at both ends which extends along said one end of the body and said plate. Each of first and second spaced apart parallel prongs is secured at one end to the plate and extends at right angles thereto, the opposite ends of said prongs being enlarged and constituting prong heads. The prongs pass transversely through spaces in said chain when said chain is in the channel with the heads disposed between the chain and said one end of the body. A manually operable lock mechanism is disposed in the body, said mechanism including a rotatable cylinder with an offset locking arm.
    Type: Grant
    Filed: February 9, 1976
    Date of Patent: April 26, 1977
    Assignee: The Raymond Lee Organization, Inc.
    Inventor: Marvin O'Dell
  • Patent number: 3979931
    Abstract: A padlock is disclosed in which a U-shaped shackle is mounted in a lock body of laminated metal construction. The heel and toe ends of the shackle are slidably mounted within openings formed in the body. A pair of lock plates are captured for sliding movement within a laminated subassembly in the body. Detents on the lock plates engage notches which are formed on sides of the heel and toe when the shackle is moved to its locked position. A key-operated lock barrel is provided with an operating member which turns a pair of cams to slide the lock plates inwardly and away from their normally locked positions. Springs are mounted within the subassembly for yieldably urging the lock plates apart toward their locked positions.
    Type: Grant
    Filed: May 8, 1975
    Date of Patent: September 14, 1976
    Inventor: Tsui Wai Man
  • Patent number: RE30243
    Abstract: A closure for a padlock body containing a removably fixed lock cylinder primarily comprising a circular member having a concave recess in its perimeter coacting with the shorter leg of the padlock's shackle at the top of the padlock, the underside of the said member having a bayonet-like latch preventing the member from being withdrawn from the top of the padlock via coacting with the interior of the padlock body wherein the aforesaid lock cylinder is enclosed unless the member is rotated a predetermined amount, and the rotation of the member being prevented by the said leg of the shackle being in its proper socket in the body of the padlock in its locked position. The keyway to the lock cylinder for locking and unlocking the padlock is in the bottom of the padlock extending into the padlock body as is well known in the art.
    Type: Grant
    Filed: September 7, 1978
    Date of Patent: April 1, 1980
    Assignee: Medeco Security Locks, Inc.
    Inventor: Roy N. Oliver