Screw Guard Patents (Class 70/DIG57)
  • Patent number: 6139075
    Abstract: A tool-operated sliding security system for a lockable enclosure comprising a bracket mounted to an outer door of an enclosure, the bracket being movable between an open position and a closed position, the bracket having at least one cutout therein; the outer door having a tool-operated security member mounted thereto, the security member extending through the cutout and moveable between an engaged position and a disengaged position; the outer door also comprising a tool-operated releasable retention member mounted thereto, the retention member releasably maintaining the outer door in a closed position; the bracket being immovable when the security member is in the engaged position and the bracket being movable when the security member is in the disengaged position; wherein the releasable retention member is accessible when the bracket is in the open position thereby rendering the outer door openable.
    Type: Grant
    Filed: May 10, 1999
    Date of Patent: October 31, 2000
    Assignee: Lucent Technologies Inc.
    Inventor: Bassel Hage Daoud
  • Patent number: 6139235
    Abstract: A lock-down assembly for securing a vehicle to a platform to prevent unauthorized removal such as an all-terrain vehicle to the deck of a trailer. The lock-down assembly includes a retractable bracket secured to the platform and a locking device securing the vehicle to the bracket. The locking device is an extendable bar having U-shaped members at both ends to engage the vehicle and bracket. The retractable bracket includes a base plate fastened to the platform and a selectively extendable U-bolt mounted to the base plate. The U-bolt is fastened to the base plate with a cylindrical bracket which prevents access to the fastening nuts of the U-bolt when the U-bolt is extended for connection to the vehicle. Accordingly, with the vehicle lockingly secured to the bracket, the bracket cannot be removed from the platform.
    Type: Grant
    Filed: March 26, 1999
    Date of Patent: October 31, 2000
    Assignee: Fulton Performance Products, Inc.
    Inventors: Tim Vander Koy, Todd Krzanowski
  • Patent number: 6109075
    Abstract: A securing arrangement for a steering wheel lock fastened on a steering column tube of a steering system of a motor vehicle is disclosed. The securing arrangement has a steering-column-fixed receiving device on which a lock housing is fastened, the receiving device and the lock housing having aligned bores which are penetrated by a securing bolt. The securing bolt is at least almost completely surrounded by the receiving device and/or the lock housing.
    Type: Grant
    Filed: April 6, 1999
    Date of Patent: August 29, 2000
    Assignee: DaimlerChrysler AG
    Inventor: Gottfried Schremmer
  • Patent number: 5979950
    Abstract: In a lock fitting for sliding closures a bolt-carrier includes a screwthreaded hole with its axis perpendicular to a covering plate to receive a screw for immobilizing a bolt on the bolt-carrier. The covering plate has an orifice for access to the screw and to the screwthreaded hole on the axis of the screwthreaded hole when the bolt-carrier is in its locked position. The fitting includes a plug to blank off the orifice. The plug can be retracted inside the casing to allow access to the screw and then returned to its normal position in which it blanks off the orifice.
    Type: Grant
    Filed: April 3, 1998
    Date of Patent: November 9, 1999
    Assignee: Ferco International Ferrures et Serrures de Batiment
    Inventors: Gerard Prevot, Gerard Desplantes, Eric Alvarez
  • Patent number: 5975595
    Abstract: A protector device for hardware latch members used in conventional containers and trailers to secure in place the pivoting locking bar members. The device includes a housing having a substantially rectangular cross-section defined by side walls, a top wall and a bottom wall. Hingedly mounted tabs extending outwardly from the inner edge of the side walls are foldable within the housing and secured on the hardware latch members of the door being protected. The distal ends of the latch members include openings though which a conventional protective seal member is passed. Upper and lower concave members join the walls' outer edges and they are separated defining aperture inbetween. In front of the aperture a convex wall is mounted to the outer edges of the side walls and cutouts on the upper and lower walls permit a protective seal member through. The latch members are completely covered and protected.
    Type: Grant
    Filed: December 18, 1998
    Date of Patent: November 2, 1999
    Inventor: Lorenzo Lorenzo
  • Patent number: 5970756
    Abstract: A dead bolt lock cover for a dead bolt lock assembly comprises a cover and a lock assembly. The cover is sized to enclose the lock casing of the dead bolt lock assembly to prevent unauthorized tampering therewith. The lock assembly fixes the cover to the dead bolt lock base or a separate base member. With the lock assembly, only an authorized person can gain access to the lock casing of the dead bolt lock.
    Type: Grant
    Filed: April 3, 1997
    Date of Patent: October 26, 1999
    Assignee: Federal Security Systems, Inc.
    Inventors: Edward Miller, Russell Waller, J. Clayton Miller
  • Patent number: 5873271
    Abstract: A locking device for a trailer and hitch of the ball and socket type, comprising an upper jaw and a lower jaw interconnected together by a shaft for reciprocal movement relative to each other. A locking mechanism keeps the two jaws apart at fixed distances over a ribbed portion of the shaft. In use, the two jaws are locked about the socket portion of the hitch to prevent unauthorized removal of the trailer. When the trailer is attached to a tow vehicle, the tow ball nut is received in an opening in the lower jaw. When the trailer is unattached, a dummy ball extends into the socket of the hitch. In both position, the socket portion of the hitch is received in an aperture in the upper jaw.
    Type: Grant
    Filed: April 24, 1997
    Date of Patent: February 23, 1999
    Inventor: Richard Smith
  • Patent number: 5870910
    Abstract: A lock-down security box including a security box and a lock-down plate. The lock-down security box is adapted to be detachably anchored to a mounting surface such as a table, wall or the like. The lock-down plate is fixed to a mounting surface by inserting fasteners through apertures extending through the plate. The lock-down plate includes a first anchoring member and a bolt-receiving slot extending therethrough. The security box includes a top panel which is pivotally mounted to one of the side panels of the box. The top panel includes a first lock set associated therewith for providing controlled access to the enclosure of the security box. The bottom panel of the security box includes a second anchoring member mounted thereon. The bottom panel further includes a bolt-passage slot extending therethrough which is adapted to receive a deadbolt of a second lock set mounted to one of the side panels of the box.
    Type: Grant
    Filed: December 2, 1996
    Date of Patent: February 16, 1999
    Assignee: Block and Company, Inc.
    Inventor: Paul E. Specht
  • Patent number: 5797285
    Abstract: A locking device for a valve having a rotatable shaft including a stop plate, and a stop secured to a housing, including a hollow body having a first chamber for receiving the shaft, a threaded aperture extending into the first chamber for receiving a screw, a second chamber surrounding the screw, a lockable closure preventing access to the screw, and a tab coupled to the hollow body adapted to be received between the stop plate and the stop.
    Type: Grant
    Filed: April 7, 1997
    Date of Patent: August 25, 1998
    Inventor: Ronald Allan Sackowitz
  • Patent number: 5794465
    Abstract: The present invention concerns an assembly for removably securing a real estate key box to a fixed structure, such as a door or wall. The assembly is designed so that when the key box is mounted on the assembly and locked, neither the key box nor the assembly can be removed from the structure.
    Type: Grant
    Filed: November 22, 1995
    Date of Patent: August 18, 1998
    Assignee: Supra Products, Inc.
    Inventor: Matthew S. Hill
  • Patent number: 5794463
    Abstract: A cable lock attachment for portable articles that is protected from tampering, whether by twisting or otherwise, when the associated cable lock is operational. The attachment comprises a shell with concentric axial ports, one large and one small, and opposed lateral ports. The small port is in proximity to a threaded socket in the article. A collar having a wide head and narrow stem fits through the large port and the stem fits into the small port with the head remaining inside the shell and the stem abutting the article. The stem is secured to the article by a screw that has an internal hex head. The stem is slightly longer than the thickness of the shell so that the shell is free to swivel about the stem when secured. The cable extends through the lateral ports, preventing access to the screw when the cable lock is secured.
    Type: Grant
    Filed: March 4, 1997
    Date of Patent: August 18, 1998
    Assignee: Kryptonite Corporation
    Inventor: Cornelius McDaid
  • Patent number: 5740685
    Abstract: Disclosed is a security mechanism for electronics enclosures such as network interface units which permits access by customers and craftspersons. A bracket is mounted to the cover of the enclosure. The bracket includes two apertures, one for receiving a security screw, and the other for receiving an ordinary screw which fastens the cover to the enclosure. The bracket also includes a cavity which accommodates the shackle of a padlock so that the ordinary screw can be covered and access prevented. Craftspersons can override the padlock by loosening the security screw and moving the bracket until the padlock is removed from the cavity.
    Type: Grant
    Filed: August 13, 1996
    Date of Patent: April 21, 1998
    Assignee: Lucent Technologies, Inc.
    Inventor: Bassel Hage Daoud
  • Patent number: 5709367
    Abstract: An equipment security mount for protecting computers or other equipment from unauthorized removal includes a base or pad adapted to be fixed to a mounting surface such as a desk top and a cover having a flange depending from a floor on which the equipment is mounted from below The cover is thereafter locked over the base to prevent removal of the equipment from the base and the base from the mounting surface. The base and cover are secured by lock pins engaging aligned lugs or straps in the base and cover and retained by locks fixed in lock openings in lock housings of the cover through which the lock pins are installed or removed. Preferably the improved cover is made from high strength resilient plastic with brass inserts in the housings which secure the locks and capture adjacent ends of the lock pins to deter removal by bending of the flange.
    Type: Grant
    Filed: March 18, 1996
    Date of Patent: January 20, 1998
    Assignee: ON-X International, Ltd.
    Inventors: Kevin J. Heintz, Peter T. Kennedy, Michael C. Kennedy, Robert T. Kennedy
  • Patent number: 5709110
    Abstract: A security system (28) for a lap-top computer (30) with a monitor housing (32) hinged thereto. The system (28) comprises a low profile mounting plate (34). A component (36) is for affixing the low profile mounting plate (34) to the monitor housing (32). An elongated flexible retainment cable (38) is provided. A first assembly (40) is for locking in a swiveled manner, a first end of the cable (38) to a table/counter top (41). A second assembly (42) is for locking in a universal articulated manner a second end of the cable (38) to the low profile mounting plate (34). The monitor housing (32) of the lap-top computer (30) can be moved from a closed position to a vertical opened position, without interference from the cable (38) for full freedom of movement and positioning thereof.
    Type: Grant
    Filed: October 7, 1996
    Date of Patent: January 20, 1998
    Inventors: Jack Greenfield, David Monoson
  • Patent number: 5699684
    Abstract: A bicycle security mount which includes a base and a pair of spaced supporting arms extending outwardly from the base. Each supporting arm has a threaded aperture for receiving a bolt. A shield is mounted on each bolt. Each shield has a bore and a counterbore. The shank of the bolt extends freely through the bore and lies entirely within the counterbore of the shield. The tines of the front fork of a bicycle are positioned on the security mounts so that the tines straddle the supporting arms. Each tine is positioned between a supporting am and a shield. The bolt lies within the downwardly facing open ended slot of the tine so that the tine is clamped between the shield and the supporting arm. The clearance between the bolt and the inner surface of the counterbore is too small to receive a conventional socket wrench but large enough to receive a socket wrench which is specifically designed for the bicycle security mount. More specifically, the bicycle security mount includes a cap for each shield.
    Type: Grant
    Filed: August 20, 1996
    Date of Patent: December 23, 1997
    Inventor: John R. Sulin
  • Patent number: 5697233
    Abstract: A tamper-proof device is provided for lockingly attaching a piece of equipment such as a TV set or a microwave oven to a support base. It has a pair of rigid plates that are respectively connected to the piece of equipment and the support base. One of the plates is surrounded by a flange which defines a closed area in which wedges are located to hook both plates together. The two plates are rigidly connected to each other by a screwable bolt that can be reached with a screw driver through a coaxial opening provided in the flange. A sleeve extends in between the head of the bolt and the opening. This sleeve can be closed by key-operated lock in order to prevent access to the bolt. The lock is free to rotate within the sleeve even when its latch is locked in outward position. Such prevents a theft from breaking the latch by forcing the lock into rotation in a cantilever fashion.
    Type: Grant
    Filed: February 12, 1997
    Date of Patent: December 16, 1997
    Assignee: Baultar Inc.
    Inventors: Andre Albert, Bruno Archambault, Claude Therer
  • Patent number: 5577408
    Abstract: An arm is affixed to the inner face of the lock cylinder and prevents the lock cylinder from being removed from the lock case. A screw attaches the arm to the lock cylinder. The lock cylinder has a cam which is also attached to the inner face of the lock cylinder and rotates to operate the lock case mechanisms. The cam, when it is rotated into a lock position, covers the head of the screw and prevents the screw from being removed. Since the cam prevents removal of the screw, the arm cannot be removed from the lock cylinder and the lock cylinder cannot be removed from the lock case.
    Type: Grant
    Filed: November 10, 1994
    Date of Patent: November 26, 1996
    Inventor: .ANG.ge Roos
  • Patent number: 5572889
    Abstract: A gearshift stick lock for an automobile having a transmission case includes a lock body, a shackle having two legs engageable with the lock body, a sleeve for wholly fitting over a gearshift stick of the automobile and extending downwardly into the transmission case, the sleeve including two threaded holes and two rings fixed to the sleeve, each of the two rings having a hole aligned with a corresponding one of the threaded holes, two screws each extending through a corresponding one of the threaded holes to bear against the gearshift stick of the automobile thereby fixedly mounting the sleeve thereon, and the legs of the shackle being engaged through the rings respectively and engaged with the lock body so as to lock the gearshift stick in place.
    Type: Grant
    Filed: November 16, 1994
    Date of Patent: November 12, 1996
    Inventor: Wu Ping-Hua
  • Patent number: 5570600
    Abstract: A gearshift stick lock for an automobile including a lock body, a shackle including two legs engageable with the lock body, a sleeve for wholly fitting over a gearshift stick of the automobile and including two threaded holes and two lugs fixed to the sleeve, each of the two lugs having a hole aligned with a corresponding one of the threaded holes, and two screws each extending through a corresponding one of the threaded holes to bear against the gearshift stick of the automobile thereby fixedly mounting the sleeve on the gearshift stick, the legs of the shackle being engaged through the lugs respectively and engaged with the lock body so as to lock the gearshift stick in place.
    Type: Grant
    Filed: November 21, 1994
    Date of Patent: November 5, 1996
    Inventor: Wu P. Hua
  • Patent number: 5469724
    Abstract: The fire hydrant locking device has a cap (20) enclosing the operating nut (12) of the fire hydrant (6). The cap is secured in place on the top surface of the fire hydrant bonnet (10) by at least one arm (22) extending downwardly over and about the bonnet and extending beyond the fire hydrant barrel mounting flange (9). The lower end of the arm (22) is attached to the flanges (9 and 10') of the barrel (8) and bonnet (10) by bracket (26) and its pad lock (25) so that the cap, arm, and bonnet of the fire hydrant cannot be removed without first removing the fire hydrant locking device. Another locking bracket (80) is received on the outlet cap (17), of the fire hydrant hose outlets (16). Chain (86) is passed through each locking bracket encircling the fire hydrant, whereupon the ends of the chain are pad locked together.
    Type: Grant
    Filed: January 12, 1994
    Date of Patent: November 28, 1995
    Inventor: Jerry K. Pollard
  • Patent number: 5456443
    Abstract: The present invention relates to an anchoring device particularly useful for the anchoring of vehicles, bicycles, motorbikes, televisions, VCR, etc. The device 1 comprises an anchor means 13, able to be securely fastened to a substrate surface, having an upwardly protruding portion 16 provided with an orifice 17 therethrough. Over the anchor means 13, is supplied a covering means 14 to substantially cover the anchor means 13 except for the protruding portion 16. In use, with the covering means 14 covering the anchor means 13, a padlock, chain, wire or the like is supplied through the orifice 17, such that the covering means 14 is unable to be removed from the anchor means 16. Consequently, access to the anchor means, for removal of the device 1 from the subtsrate, is prevented.
    Type: Grant
    Filed: January 25, 1994
    Date of Patent: October 10, 1995
    Inventor: Gary M. Taaffe
  • Patent number: 5447045
    Abstract: An apparatus for locking a closed notebook computer on a computer support includes a lock support which has a counterbore and a shackle hole which are formed therethrough and which intersect each other. The computer has a computer housing and a display unit pivoted to the computer housing. An L-shaped locking plate has a horizontal portion located intermediately over the display unit, and a vertical portion with an aperture located between the lock support and the display unit. A bolt member extends through the counterbore of the lock support and the aperture of the L-shaped locking plate to engage threadably within the threaded hole of the computer. A padlock is fastened to the computer support and has a shackle extending through the shackle hole of the lock support so as to cover the recess portion of the bolt member, thereby preventing the bolt member from being accessed by a screwdriver.
    Type: Grant
    Filed: August 18, 1994
    Date of Patent: September 5, 1995
    Assignee: Manufacturing Technology Resources Inc.
    Inventor: Samuel Cheng
  • Patent number: 5447044
    Abstract: An apparatus for locking a notebook computer on a computer support includes a padlock, an elongated fixing member fastening the padlock to the computer support, and a lock support fastening the padlock to the computer. The computer housing of the computer is of the type having a straight slot and a threaded hole which are formed in the outer surface thereof, and is provided with a built-in bolt member which is engaged within the threaded hole. The lock support has a counterbore through which the bolt member extends. A rib projects from the lock support to engage within the slot of the computer housing so as to prevent rotation of the lock support relative to the computer housing. A shackle hole is formed through the lock support in such a manner that the counterbore and the shackle hole intersect. The shackle of the padlock extends through the shackle hole and covers the head of the bolt member so as to prevent a screwdriver from access to the bolt member.
    Type: Grant
    Filed: May 25, 1994
    Date of Patent: September 5, 1995
    Assignee: Manufacturing Technology Resources Inc.
    Inventor: Samuel Cheng
  • Patent number: 5394711
    Abstract: A padlock includes a lock body (1) and a substantially U-shaped shackle (2), a lock mechanism (4) fitted into a cavity (3) in the lock body and to which at least one lock bolt (5) is functionally connected for locking the shackle to the lock body (1), a cover element (6), which is turnably connected to the lock body (1), preferably by means of threads, and which is located in the insertion direction of the key in front of the lock mechanism (4), and a stop member (7), arranged in the lock body transversally with regard to the cover element (6), removable in the open position of the shackle (2) and preventing, in its blocking position, turning of the cover element (6) with regard to the lock body (1), and a locking ring (10) placed in a groove (9) in the lock body (1) surrounding the cover element and arranged to be installed in its position in case the cover element (6) is to be locked permanently to the lock body (1).
    Type: Grant
    Filed: November 16, 1993
    Date of Patent: March 7, 1995
    Assignee: Abloy Security Ltd Oy
    Inventor: Jukka Pitkanen
  • Patent number: 5363677
    Abstract: An anti-theft device for vehicles comprising a steering column shackle in the form of a generally cylindrical collar defined by a pair of semicircular or arcuate shaped bands hingeably connected together with an adjusting lockable latch assembly. At least one of the bands comprising the sleeve has at least one opening therein to accommodate a shift lever extending from the steering column. The sleeve is positioned around the steering column and shift lever and locked with a key to prevent thieves from breaking the tubular steering column housing open, exposing the ignition starting and gearshift rod mechanisms therein.
    Type: Grant
    Filed: April 29, 1993
    Date of Patent: November 15, 1994
    Inventor: Choice L. Cox
  • Patent number: 5351507
    Abstract: A device for securing equipments such as personal computers, monitors, printers and the like by using a cable which is secured to a relatively immovable fixture. The device comprises a wire cable with a plastic sheath and having a bulbous protrusion on one end, a plurality of fastener blocks, a metal ring and a cam lock assembly. The cable locking device is secured to various equipments by fastener blocks with the cable passing through the blocks, the bulbous protrusion on the cable end preventing the cable from being pulled through the blocks. The free end of the cable is looped around a suitable pillar or immovable object, passing through a ring and thence through a cam lock assembly. By turning a key in the cam lock, the lock assembly is clamped to the cable, preventing the cable loop from being removed. Access to the screws holding the blocks to the equipment is prevented by the cable passing through the blocks above the screws.
    Type: Grant
    Filed: May 18, 1993
    Date of Patent: October 4, 1994
    Inventor: Jay S. Derman
  • Patent number: 5351513
    Abstract: A double cylinder tubular deadbolt having the inside cylinder provided with a removeable cap or cover which covers the exposed screws in the flanged face of the inside cylinder. The removable cover fits over and covers the face portion of the inside cylinder. The cover is retained in place by an escutcheon which fits over the flanged face with the cover thereon.
    Type: Grant
    Filed: March 1, 1993
    Date of Patent: October 4, 1994
    Assignee: Baldwin Hardware Corporation
    Inventor: Philip C. Ellis
  • Patent number: 5291767
    Abstract: A lock cylinder apparatus includes first and second lock cylinder assemblies rigidly fixed to a lock case and coupled to an internal locking mechanism contained in the lock case. The first lock cylinder assembly includes a lock body and an adaptor ring around the lock body. The adaptor ring is sized to fit into a cylinder assembly mounting hole in the lock case. A threaded member extends through the lock case and interconnects the second lock cylinder assembly to the adaptor ring of the first lock cylinder assembly. Illustratively, a hidden setscrew in the first lock cylinder assembly can be moved to engage the adaptor ring and anchor the lock body in a non-rotatable position in the adaptor ring.
    Type: Grant
    Filed: July 23, 1992
    Date of Patent: March 8, 1994
    Assignee: Best Lock Corporation
    Inventors: Charles T. Weindorf, Jr., Gary A. Pelsue
  • Patent number: 5220815
    Abstract: Lockable covers are used to cover either of two types of shield blocks to prevent access to circuits within either of two types of external ports on computing devices. Each such shield block covers the port contacts associated with these circuits, includes locking surfaces for holding the lockable cover in place, and is itself held in place by the attachment features provided on the external port for holding an external cable in place. One such shield block is held in place by a pair of screws extending into threaded holes in the external port, while the other such shield block is held in place by a pair of flexible wire bails rotatably mounted in the external port.
    Type: Grant
    Filed: January 19, 1993
    Date of Patent: June 22, 1993
    Assignee: International Business Machines Corporation
    Inventors: Ronald V. Davidge, John R. Dewitt, Paul J. Galinis, Francis A. Kuchar, Jr., Jay H. Neer, Thomas H. Newsom
  • Patent number: 5214945
    Abstract: A locking assembly used to deny access to a nut or to a bolt head to prevent theft of an article that is bolted to a body such as a vehicle. The locking assembly includes a retainer through which the bolt passes and that partially surrounds the nut or bolt head that secures the retainer to the body. The retainer includes a groove that extends circumferentially around it. The locking assembly also includes a housing that fits over the retainer and that is selectively engaged to the retainer by a ball bearing that is pushed into the groove on the retainer when a key turns the shaft of a lock which turns a cam that pushes the ball bearing into the groove. The locking assembly has an exceptionally low profile, made possible by positioning the lock perpendicular to the axis of the bolt. Further strength is imparted to the locking assembly by the fact that the retainer is almost as deep in the axial direction as the housing, and the strength of the retainer reinforces the housing.
    Type: Grant
    Filed: June 16, 1992
    Date of Patent: June 1, 1993
    Inventor: Kenneth B. Martin
  • Patent number: 5163308
    Abstract: A device for locking doors and other objects to prevent unauthorized use or entry comprising a conventional padlock embraced by a metal cradle housing, the rear panel apertured to provide a fastening means to hold the cradle housing to a door or other object. The top and bottom of the cradle housing being apertured to receive the shackle legs of the padlock. The ends of the shackle legs, acting as dead bolts, are aligned so as to enter the apertures of the lock plate which is anchored to a stationary object such as a door frame or floor.
    Type: Grant
    Filed: July 21, 1992
    Date of Patent: November 17, 1992
    Inventor: Gerald D. Lillo
  • Patent number: 5157954
    Abstract: A bicycle anti-theft device which may be permanently attached to a bicycle frame, and provides structure to support a locking mechanism which traverses the spokes of a wheel. The mounting assembly (10) supports and secures two elongated flat arms (16R) and (16L) to the center vertical tube of a bicycle frame. The two arms are slidably mounted in notched casing, (14R) and (14L) which are each fastened to a corresponding half of a mounting clamp (12R) and (12L). The mounting clamp halves are secured to the bicycle frame utilizing threaded fasteners (22). The right elongated arm (16R) possesses a through hole (44) which allows or denies access to these mounting fasteners in the unlocked and locked positions, respectively. The two elongated arms also possess holes (42) which support a padlock (18) between adjacent spokes of a wheel to prevent its rotation and holes (48) to support the padlock away from the wheel during vehicle operation.
    Type: Grant
    Filed: September 6, 1991
    Date of Patent: October 27, 1992
    Inventor: Robert T. Pietras
  • Patent number: 5079935
    Abstract: A lock operable by a key between a locked condition and an open condition, the lock having a fastener for releasably securing the lock to an object, the fastener being movable between a retracted position wherein the lock is in the open condition and an extended position, a spring for biasing the fastener to the retracted position and an enclosure having an opening adapted to allow the insertion and removal of the key from the lock when the lock is in the locked condition and to prevent the removal of the key from the lock when the lock is in an unlocked condition.
    Type: Grant
    Filed: August 9, 1990
    Date of Patent: January 14, 1992
    Inventor: John A. Zaucha
  • Patent number: 5027627
    Abstract: A locking device for preventing access to a bolt or stud-nut which secures an equipment to a base. The device comprises three parts: a rectangular tube body, a slide member and a lock body. In use, the bolt is put through a hole in the tube body and the equipment, and tightened down. The slide member is then inserted in one end of the tube and slid over the head of the bolt or stud-nut and the lock body is inserted in the tube and locked by a key. This prevents the slide from being removed and prevents access to the bolt head or stud nut. The device is flat and compact, and may be used for a variety of applications where equipments are secured by bolts or stud-nuts, particularly in tight quarters.
    Type: Grant
    Filed: January 7, 1991
    Date of Patent: July 2, 1991
    Inventor: Jay S. Derman
  • Patent number: 5010748
    Abstract: A locking device for preventing access to a bolt or stud-nut which secures an equipment to a base. The device comprises three parts: a block, a cover member and a lock body. In use, the bolt is put through a hole in the block and the equipment and is tightened down. The cover member is then fitted over the head of the bolt or stud-nut and the lock body is inserted in the block and locked by a key. This causes the lock to bear down on the cover member, preventing its removal. The device is compact and able to be used for a variety of applications where equipments are secured by bolts or stud-nuts.
    Type: Grant
    Filed: July 23, 1990
    Date of Patent: April 30, 1991
    Inventor: Jay S. Derman
  • Patent number: 4956983
    Abstract: A locking apparatus with a key comprising a cylindrical body, a cylindrical operation member mounted inside the body, a first spring for returning the operation member to an original position, a key rotor mounted inside the operation member, a second spring for urging the key rotor to rotate to an original position, a limiting member provided in the key rotor, a third spring for urging the limiting member to project outwardly from the key rotor, an engagement portion disposed in the body, the engagement portion being engaged with the limiting member projected outwardly by the third spring when the operation member is pushed inwardly by a predetermined stroke along the axis against the first spring by a manual operation, and a disengagement portion provide in the body, the disengagement portion unlocking the limiting member from the engagement portion thereby returning the operation member and the key rotor to original positions under the elastic forces of the first and second springs in response to rotation o
    Type: Grant
    Filed: September 8, 1989
    Date of Patent: September 18, 1990
    Assignee: Kabushiki Kaisha Tokai Rika Denki Seisakusho
    Inventors: Naokatsu Okamura, Noboru Yamaguchi, Shuji Masuda, Noboru Kanou
  • Patent number: 4861079
    Abstract: A multi-purpose lock bolt has a body which includes a bolt hole, a lock shackle hole and one or more mounting holes. Each of these are formed in the body and pass through the body. The lock shackle hole intersects with and traverses across the bolt hole as do the mounting holes. An elongated bolt is sized and shaped so as to fit into and slide in the bolt hole. The elongated bolt includes an alignment hole which is located in the elongated bolt in a direction transverse to the elongated axis of the elongated bolt. The bolt slides in the bolt hole in the body between an unlocked position and a locked position wherein in the locked position the alignment hole in the elongated bolt is aligned with the lock shackle hole in the body allowing a shackle of a lock to be passed through both the lock shackle hole of the body and the alignment hole in the elongated bolt to fix the elongated bolt with respect to the body in a locked position.
    Type: Grant
    Filed: December 3, 1987
    Date of Patent: August 29, 1989
    Inventor: William DeForrest, Sr.
  • Patent number: 4854142
    Abstract: An antiremoval device for a locking mechanism for a steering column lock for motor vehicles is disclosed. A fastening member extending through releasably connected housing parts, which prevent tampering with the locking parts, engages additionally into a displaceable catch of the locking parts when the catch is in a locking position with the steering column to thereby prevent the fastening member from being moved to a position releasing the housing parts.
    Type: Grant
    Filed: July 15, 1987
    Date of Patent: August 8, 1989
    Assignee: Daimler-Benz Aktiengesellschaft
    Inventors: Karl Peitsmeier, Reinhard Steinkamper
  • Patent number: 4813250
    Abstract: A lock device is provided in which the locking bolt can be actuated by turning the outside lock cylinder or the thumbturn to releasably interlock the housing fixed to the inside surface of the door with a strike attached to the door frame. An inside lock cylinder is rotatably provided in the thumbturn and is designed to releasably lock the thumbturn. The lock device can not be dismounted from the inside of a room by an unauthorized person since all screws for mounting the housing are concealed within the housing, when the door is locked by the outside lock cylinder and the thumbturn is also locked with the inside lock cylinder.
    Type: Grant
    Filed: March 10, 1988
    Date of Patent: March 21, 1989
    Assignee: Catwin Industrial Corp.
    Inventor: Ching H. Yeh
  • Patent number: 4794769
    Abstract: Apparatus for lockably securing the threaded ball of a ball-type trailer hitch to the hitch tongue. A first laminated washer-like assembly, including a locking hasp and recess, is boltably secured with the ball to the hitch tongue. A cap member, including a mating hasp portion, mounts into the washer recess to receive a padlock and protect the otherwise unprotected end of the ball fastener.
    Type: Grant
    Filed: November 20, 1987
    Date of Patent: January 3, 1989
    Inventor: Thomas H. Persons
  • Patent number: 4793164
    Abstract: A locking assembly for utility meter boxes is disclosed, the assembly designed for connection to the meter box at the latch portion or the point of access to the box. The assembly has a bracket member for connection to the meter box and a cover member for engaging the bracket member and forming an enclosure around the point of access. A lock retaining member is disposed within this enclosure for engaging and retaining a lock therein, thereby preventing unauthorized removal of the cover member.
    Type: Grant
    Filed: March 23, 1987
    Date of Patent: December 27, 1988
    Inventor: Clifford E. Sloop, Sr.
  • Patent number: 4792167
    Abstract: A releasable bolt device 1 for securing an emergency exit door 2 comprises a support structure 3 of box-like form, a bolt member 4 slidably mounted on the structure 3 for movement relative thereto, a compression spring 5 for urging the bolt member 4 away from the door-securing position, a frangible keep member 6, and a plate 7 for retaining the keep member 6 in place whereby its presence maintains the bolt member 4 in a door-securing position. The frangible keep member 6 is weakened locally so that it may be deliberately broken at that locality by manual force applied to it, whereby the bolt member 4 is moved out of its door-securing position by the spring 5.
    Type: Grant
    Filed: November 4, 1986
    Date of Patent: December 20, 1988
    Inventors: James C. King, Michael A. Cooper
  • Patent number: 4761975
    Abstract: Apparatus for locking together modules of a computer system includes first and second members that are secured, by screws, proximate adjacent edges of adjacent modules. Tabs on the members and holes through the tabs align so that a padlock may be utilized to lock the modules together. A slotted plate is positioned on the tabs and secured in place by the padlock to cover the securing screws so that they cannot be removed.
    Type: Grant
    Filed: June 5, 1987
    Date of Patent: August 9, 1988
    Assignee: Unisys Corporation
    Inventors: Thomas A. Kachnowski, Frederick E. Bratro, Elhanan Kaplan, George A. Sudol
  • Patent number: 4674304
    Abstract: A locking cover assembly for the ends of an electric meter retaining ring, to receive a lock bolt from the front side thereof to retain the cover in place and thereby prevent access to the clamping bolt that retains the ring in place. The cover comprises a housing having an internal locking plate apertured to receive the end of a lock bolt in a position such that it extends between the legs of the retaining ring and over the clamping bolt.
    Type: Grant
    Filed: May 14, 1980
    Date of Patent: June 23, 1987
    Assignee: E. J. Brooks Company
    Inventor: Richard S. Guiler
  • Patent number: 4674306
    Abstract: A vehicle and assembly locking and wrenching apparatus is provided by replacement nuts each having an incised front face and arcuate sides parallel to the face, surrounded by cylindrical, annular rings that prevent the gripping and turning of the nuts. Provision is also made for a coupling having a fitting that possesses projected walls complementary to the channels incised on the faces of the nuts, such that upon insertion of a fitting into a nut, engagement is provided for the attachment or removal of the nut by turning. A vehicle-and-assembly locked mode is created when removable assemblies are attached with the replacement fasteners, the coupling is attached to a U-shaped lock around the end opposite to the cylindrical locking mechanism for the U-shaped lock, and the U-shaped lock is locked around the vehicle and a stationary object.
    Type: Grant
    Filed: September 16, 1985
    Date of Patent: June 23, 1987
    Inventor: Offer Halpern
  • Patent number: 4669281
    Abstract: An apparatus is presented which protects the cabling system on a computer. The apparatus allows only bona fide users to electro/mechanically connect or disconnect cables to a computer system. The apparatus essentialy comprises a first structure and a locking cover. The first structure is attached to a first cable terminal and prevents other terminals from being electro/mechanically connected to the first cable terminal. The locking cover then prevents the first structure from being removed from the first cable terminal. In the preferred embodiment the first structure is attached to the first cable terminal by one or more screws and the locking cover prevents access to the screw(s).
    Type: Grant
    Filed: October 9, 1984
    Date of Patent: June 2, 1987
    Assignee: Hewlett-Packard Company
    Inventor: James E. Young
  • 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: 4658607
    Abstract: An outboard motor lock for boats wherein the outboard motor is secured to the boat transom by a split elongated housing which is retained in an assembled relationship by a lock disposed generally therein and which housing extends along and reinforces the transom and fully encloses the motor mounting bolts that extend from the motor through the transom thereby preventing any access to such bolts and thus preventing the unauthorized removal of the boat motor.
    Type: Grant
    Filed: November 20, 1985
    Date of Patent: April 21, 1987
    Inventors: Ira F. Muse, Jr, Jerrold L. Flowers
  • Patent number: 4598933
    Abstract: An anti-theft lock for securing a binding to a ski, in particular a binding suited for the holding of ski shoes of any desired length without longitudinal adjustment. The binding includes structure which can be locked either in its stepping-in position or in its closed position by a lock, a switch or the like to thereby prevent removal of the binding from the ski.
    Type: Grant
    Filed: October 17, 1984
    Date of Patent: July 8, 1986
    Assignee: TMC Corporation
    Inventor: Klaus Hoelzl
  • Patent number: 4584856
    Abstract: A security cover lockably engageable with surface mounted apparatus for preventing unauthorized access to the apparatus. The security cover includes a shell with peripheral sides which closely conform to the size of the apparatus over which it fits, and a pair of tangs on the shell edge wedgable between the apparatus and the surface. A key lock is mounted within the outer surface of the protective cover and includes a slotted finger rotatable with the lock cylinder. The fastener with which the apparatus is fixed to the surface is replaced by a double-headed fastener and is engageable with the slotted finger to thereby lock the protective cover to the apparatus. In the alternative, another apparatus screw is replaced with a double-headed fastener and, instead of tangs, a side edge of the cover is slotted for engagement with the second double-headed screw.
    Type: Grant
    Filed: January 11, 1984
    Date of Patent: April 29, 1986
    Inventors: George D. Petersdorff, Keith J. Neilson, Jimmie L. Curls