Anti-jimmy Patents (Class 70/418)
  • Patent number: 8826596
    Abstract: A door edge protection device for a motor vehicle door, with a door edge protection profile (5) which is guided movably with respect to the door at at least two points lying one behind the other in the longitudinal direction of the door, the door edge protection profile (5) being driven via an eccentric lever (7) mounted rotatably in the door and the door edge protection profile (5) having a holding rod (6) which is guided by a linear guide (10) which is fixed in the door, the holding rod (6) being bent in the region of the linear guide (8, 9; 11).
    Type: Grant
    Filed: July 8, 2013
    Date of Patent: September 9, 2014
    Assignee: Ford Global Technologies, LLC
    Inventor: Matthias Tensing
  • Patent number: 8516748
    Abstract: A door edge protection device for a motor vehicle door, with a door edge protection profile (5) which is guided movably with respect to the door at least two points lying one behind the other in the longitudinal direction of the door, the door edge protection profile (5) being driven via an eccentric lever (7) mounted rotatably in the door and the door edge protection profile (5) having a holding rod (6) which is guided by a linear guide (10) which is fixed in the door, the holding rod (6) being bent in the region of the linear guide (8, 9; 11).
    Type: Grant
    Filed: May 4, 2011
    Date of Patent: August 27, 2013
    Assignee: Ford Global Technologies, LLC
    Inventor: Matthias Tensing
  • Patent number: 8443737
    Abstract: A security assembly comprising a frame member 12 and a plurality of doors 14 is mountable inside the housing 4 of an ATM or safe etc. Each door 14 can be opened and closed independently of the other doors. Referring to FIGS. 4 and 5, each door 14 is attached to the frame member 12 by a hinge 16. A barrier member 18, which acts to lock the door 14, is mounted to the door 14 by two pivoting brackets 20. When in the locked condition, the barrier members 18 extend substantially along the whole length of the edge of the door to prevent access through the boundaries between the doors and the frame. A barrier member actuator in the form of a plurality of independently moveable locking blades 22 is slidably mounted to the frame 12.
    Type: Grant
    Filed: May 20, 2008
    Date of Patent: May 21, 2013
    Inventor: Robert Edmund Todd
  • Patent number: 7347069
    Abstract: A lock that includes a frame which is arranged to be secured on the outside against a first side of a tubular member of a hinged gate and at least one bolt which is arranged to extend through the tubular member, out of a second side thereof, into the keeper device. The keeper device is mounted on a fixed member, which is usually a pole arranged in the ground. In order to make it more difficult to force the gate open by inserting, for example, a crowbar between the gate and the fixed member, the lock and keeper set comprises a security device arranged to prevent the gate and the fixed member from being forced apart sufficiently to disengage the bolt from the keeper device. This security device includes a first security piece arranged to be secured to the frame of the lock and to project from the second side of the tubular member to extend, in the closed state of the gate, behind a second security piece on the keeper device.
    Type: Grant
    Filed: May 25, 2005
    Date of Patent: March 25, 2008
    Inventor: Joseph Talpe
  • Patent number: 7337636
    Abstract: An anti-theft device including a shaft divided into first and second brackets and a locking mechanism. First bracket defines first 300a and second 320a edges, second bracket defines first 300b and second 320b edges. First 320a and second 320b edges are hingedly connected such that first and second brackets can be opened or closed. Edge 300b includes at least one inner-flange and a locking tab. First bracket 260a includes sidewall 340a. Locking tab and sidewall 340a respectively define apertures 440 and 390. Apertures 440 and 390 are aligned upon closing the first and second brackets. When the first and second brackets are in a closed configuration, the locking mechanism is in operable communication with apertures 440 and 390 such that the locking mechanism is capable of reversibly locking first and second brackets together, and wherein the at least one inner flange prevents illicit tampering of the locking mechanism.
    Type: Grant
    Filed: March 29, 2006
    Date of Patent: March 4, 2008
    Inventor: Bryan Witchey
  • Patent number: 6859977
    Abstract: A security closure assembly for a door or a window in an opening of a building for preventing unauthorized access therethrough when in a secured position and for allowing ingress to and egress from the building when in an open position is provided. The security closure assembly includes a jamb having an outwardly facing surface and a jamb flange protruding outwardly from the outwardly facing surface of the jamb. The security closure assembly also includes a frame which fits within said jamb with a space defined between the frame and the jamb. A protrusion extends from the frame which overlays the space defined between the frame and the jamb. The protrusion has a channel which surrounds the jamb flange when the frame is in the secured position.
    Type: Grant
    Filed: August 7, 2002
    Date of Patent: March 1, 2005
    Assignee: Kane Manufacturing Corporation
    Inventors: Robert H. Morgan, Richard P. Armstrong
  • Patent number: 6692057
    Abstract: A trunk lid or back door of a vehicle includes an inner panel and an outer panel, and a gap is formed between the inner panel and the outer panels. A reinforcement member is provided outside the inner panel at a position corresponding to an attachment unit of a latch. An extending portion of the reinforcement member extends to the outer panel and is provided with an attachment portion which is fixed on the outer panel. The latch is provided inside the inner panel and a latch disengaging lever is attached to the latch at the outer side thereof in a rotatable manner. In addition, the extending portion of the reinforcement member is positioned directly above the latch disengaging member.
    Type: Grant
    Filed: October 8, 2002
    Date of Patent: February 17, 2004
    Assignee: Suzuki Motor Corporation
    Inventors: Kazuhiko Igarashi, Hiroyuki Imakama
  • Patent number: 6619725
    Abstract: A side impact structure for incorporation between an outer shell and an inner door panel of a door of a motor vehicle, includes an elongate section member having an attachment element. Secured to the attachment element is a blocking element which at least partially bridges a spacing between the outer shell and the inner door panel to thereby prevent access to the actuating mechanism of the door lock via a gap in the outer shell.
    Type: Grant
    Filed: April 23, 2002
    Date of Patent: September 16, 2003
    Assignee: Benteler Automobiltechnik GmbH & Co. KG
    Inventors: Ludger Gehringhoff, Stefan Gossmann
  • Patent number: 6612629
    Abstract: As herein described a plastic or metal hollow frame device which when mounted within the bolt cavity on a door frame and therefrom extending outwards with curved ‘U’ shaped arms through the strike plate aperture mounted concentric with and above the said frame bolt cavity, and thence into the space between the door frame and the edge of the closed door, i.e. the door gap, upon which door is mounted an associated spring bolt door lock, in such a manner that when the spring bolt is located within the strike plate aperture and the frame bolt cavity, i.e.
    Type: Grant
    Filed: October 9, 2001
    Date of Patent: September 2, 2003
    Inventor: Edward O'Hanlon
  • Patent number: 6546767
    Abstract: A vehicle door lock assembly has a latch (12) for mounting on a vehicle door. The latch (12) has at least one release lever for effecting releasing of the latch and at least one locking lever (14) for locking the latch, disabling the release lever, and unlocking the latch, enabling the release lever. A compound linkage (20, 24; 20, 124) operatively engages the locking lever (14). A lock cylinder (30, 130) has a spindle (28) which engages the linkage. The spindle (28) rotates in response to keyed rotation of a matched key being received by the lock cylinder (30; 130) which drives the linkage (20, 24; 20, 124) to effect movement of the locking lever (14). The spindle (28) is axially slidable to disengage the spindle from the linkage. A hollow shield (34) shrouds the locking lever (14), the linkage (20, 24; 20, 124) and the engagement between the linkage and the spindle (28), preventing access thereto. If the spindle is removed, the linkage will pivot away preventing manipulation thereof.
    Type: Grant
    Filed: January 29, 2001
    Date of Patent: April 15, 2003
    Assignee: Atoma International Corp.
    Inventors: Juliusz Kirejczyk, Douglas G. Overbury, Krzysztof Groszkowski
  • Patent number: 6164219
    Abstract: Security vault to protect valuable items. The vault has a redundant number of members which combine to deter the entry and subsequent attempted damage to or destruction of the vault. A body has an open end which is surrounded by a strength band connected to the body. A recess is defined between the strength band and the open end of the body. A door to the vault has open and closed positions and, in the closed position, an edge extension of the door enters into the recess. Rod loops are connected between the body and the strength band and act as locking members for complementary pawls which are mounted on the interior of the door.
    Type: Grant
    Filed: July 14, 1998
    Date of Patent: December 26, 2000
    Assignee: John Richard Green
    Inventor: John Richard Green
  • Patent number: 5988712
    Abstract: An anti-theft device is constituted by an elongated rod of a width less than the gap between a window glass pane and a facing inner edge of a window sill for an automobile door interior panel. A shield plate is fixed to and extends radially outward to one side of the rod at a distal end, and a wedge is fixed to and extends alongside the rod adjacent the proximate end, with the wedge having a thickness greater than the width of the gap and tapering over its length to a tapered leading edge facing the trailing edge of the shield plate. By inserting the shield plate into the interior of the door within the gap and twisting the rod about the axis, the wedge is forced into frictional locking position between the inside of the window glass pane and the window sill, with the shield plate covering the door mechanism actuating lever.
    Type: Grant
    Filed: March 6, 1998
    Date of Patent: November 23, 1999
    Assignee: Worldwide Jimmy Block, LLC.
    Inventor: William Robert Segelin
  • Patent number: 5921119
    Abstract: A pop-out handle lock assembly having a frangible and easily replaceable handle portion is provided. As with other pop-out handle lock assemblies, the pop-out handle lock assembly of the present invention is used to lock a movable closure member relative to a stationary object such as a vending machine door and a vending machine cabinet, respectively. In operation, the pop-out handle lock assembly of the present invention is received by a housing which is mounted to the movable closure member. The housing, in particular, has a longitudinal slot formed therethrough, and includes a front face portion which abuts the movable closure member and a generally perpendicular rear guide portion which extends into the movable closure member. The pop-out lock assembly of the present invention includes a stem portion and a frangibly attached handle portion.
    Type: Grant
    Filed: August 1, 1996
    Date of Patent: July 13, 1999
    Assignee: Fort Lock Corporation
    Inventors: Gary L. Myers, Ratomir Zivovic
  • Patent number: 5907964
    Abstract: A cylinder-type lock for a motor vehicle door, having a lock housing and a plug lever, intend for control by the plug and able to move along a wall of the housing. An orifice is provided in the wall of the housing and another orifice is provided in the plug lever; the two orifices face one another when the lever is in an appropriate position for mounting. A wedge interacts with the two orifices in order to immobilize the lever with respect to the housing.
    Type: Grant
    Filed: August 7, 1997
    Date of Patent: June 1, 1999
    Assignees: Valeo Systemes de Fermetures, AB Volvo Personvagnar
    Inventors: Joel Girard, Janik Delaure, Jonas Adolfsson
  • Patent number: 5850796
    Abstract: A gun lockbox resistant to forced entry includes a guard member formed to an inside edge of a housing half, and one or more locks in an opposing housing half which engage the guard member, for securing the housing halves together and preventing insertion of a prying tool therebetween. The gun lockbox may additionally include clip members to attach the lockbox to a stationary object within a transport vehicle or to a wall, the clip members preferably consisting of complementary brackets with the attachment hardware being located inside the lockbox, to prevent easy theft of the lockbox outright. The gun lockbox or case may further be configured to facilitate aligning and positioning to the stationary object, through raised portions on the exterior surface of one of the housings. Also, the gun lockbox may be constructed from a conventional case.
    Type: Grant
    Filed: November 22, 1996
    Date of Patent: December 22, 1998
    Inventor: Daniel M. Cislo
  • Patent number: 5704666
    Abstract: The security device is suitable for use with any conventional dead bolt lock mounted on a door. It comprises a plate shaped to extend flat on the outer lateral surface of the doorframe. A security lever is mounted on the security device and is pivotable about a vertical axis adjacent to the plate. The security lever includes an inner arm extending on one side of the plate in the cavity of the doorframe in a position such that the dead bolt, in a lock position, abuts on the inner arm and causes the lever to pivot around its axis. The lever further includes an outer arm extending on another side of the plate shaped and sized to extend on the door behind the dead bolt, when the dead bolt has been brought to a lock position and has caused the lever to pivot around its axis. With a security device according to the present invention, the locking of the dead bolt lock is performed in only one step by simply engaging the door lock, thereby engaging the security device simultaneously.
    Type: Grant
    Filed: November 6, 1996
    Date of Patent: January 6, 1998
    Inventor: Christian Guillemette
  • Patent number: 5570913
    Abstract: An independent dual deadbolt locking mechanism for securing doors, windows or the like. The dual locking mechanism has a single pivot key that acts to place two deadbolt locks in either a locked or unlocked position simultaneously. The deadbolts may be oriented at various angles to one another. Typically, the deadbolts are oriented at a 90 degree angle from one another, with one deadbolt locking into the side frame of a door, and the other locking into the upper door frame or floor. The mechanical arrangements of the locking mechanism allows one deadbolt to be broken or forced into an unlocked position without affecting or unlocking the other independent deadbolt.
    Type: Grant
    Filed: February 10, 1995
    Date of Patent: November 5, 1996
    Inventor: Marino Puric
  • Patent number: 5551268
    Abstract: A retainer assembly for attaching a lock cylinder to a door panel, the lock cylinder having a length and a plurality of radially spaced flanges disposed on and raised outwardly therefrom. The retainer assembly comprises a retainer clip having at least two laterally spaced apart flanges, the at least two laterally spaced apart flanges preventing rotational movement of the lock cylinder when the lock cylinder is engaged with the retainer clip. A base is provided having a first side, a second side, and an open-ended slot. The base is connected to the retainer clip at the second side. The open-ended slot is provided for slidingly engaging the lock cylinder such that upon engagement of the lock cylinder, the base flatly abuts against the door panel on the first side and the retainer clip abuts against the plurality of radially spaced flanges of the lock cylinder.
    Type: Grant
    Filed: April 3, 1995
    Date of Patent: September 3, 1996
    Assignee: Chrysler Corporation
    Inventors: Vince S. Carnes, Javier Saldana
  • Patent number: 5477712
    Abstract: An improved automobile anti-theft guard plate that provides exceptional strength through the use of two bonded plates. The first plate has a flanged circumference to enclose the second plate. These flanges, especially when combined with the second plate's inherit strength, provide for enhanced rigidity to withstand deformation from a pry bar. An opening through both plates permits the automobile's handle lock activation and door opening mechanism access to these mechanisms within the automobile door. A tower or vertical member on the guard plate extends vertically from the plates and at least partially surrounds and shields the handle's mechanisms to even further dissuade tampering by a thief. The guard plate is additionally designed to permit the handle to be secured thereto through the use of tabs which engage the handle at the same time the handle is engaging the opening mechanism.
    Type: Grant
    Filed: October 21, 1993
    Date of Patent: December 26, 1995
    Assignee: Hill International
    Inventor: Mark L. Hill
  • Patent number: 5415020
    Abstract: A door latch guard for guarding the latch of an outwardly opening door and for preventing spreading of the door away from an adjacent door frame comprises a cover plate having a first flat portion for connection to the door and a second flat portion adapted to overlie the adjacent door frame. A third portion of the cover plate, between the first and second flat portions, defines a groove adapted to overlie the door and the door frame and to receive a protruding latch strike plate. The groove includes a flat outer portion having a width adapted to accommodate locks installed in the door at a plurality of different backsets. In addition, the cover plate has a cut-out adapted to allow the cover plate to be mounted flat against the door, without interfering with the door lock hardware, yet still receive the protruding latch strike plate, regardless of the backset at which the door locks are installed.
    Type: Grant
    Filed: April 28, 1993
    Date of Patent: May 16, 1995
    Assignee: M.A.G. Eng. & Mfg. Inc.
    Inventor: Howard M. Allenbaugh
  • Patent number: 5406814
    Abstract: An improved latch guarded door lock and frame system is provided. A recessed surface is provided in a hollow metal frame, and is dimensioned to accommodate a latch guard so that the external surfaces of the door, frame and latch guard are flush. The recessed surface of the frame behind the latch guard is further reinforced by employing a thicker wall than is used in the rest of the frame, and by welding a square metal tube into the recessed region. A medial metal support is also welded into the lock box cavity in order to prevent the lock box from collapsing under stress. The resulting door lock and frame system is less penetrable than prior systems, and provides greater security because the latch guard is less vulnerable to prying and because the frame and lock box are reinforced, thus less likely to collapse under stress.
    Type: Grant
    Filed: March 30, 1993
    Date of Patent: April 18, 1995
    Inventors: Michael Zeager, Cynthia M. Zeager
  • Patent number: 5317890
    Abstract: A latch assembly for door locks. The latch assembly has (A) a box-shaped frame having two parallel plates each having a rectilinear slot, a curved slot with a middle section, (B) a first terminal section, (C) a second terminal section having a first shoulder and a second shoulder and (D) a hole for receiving a lock core. A dead bolt has (E) a first portion which is pressed by a finger extending from the core for retracting the dead bolt into the box-shaped frame, (F) a second portion which is pressed by the finger for moving the dead bolt out of the box-shaped frame, (G) a connection coupling the first portion with the second portion, (H) a recess extending in the connection, and (I) a passage transversely extending through the connection. A pin extends through the passage formed in the detent and its two ends are slidably received in the rectilinear slots.
    Type: Grant
    Filed: April 1, 1993
    Date of Patent: June 7, 1994
    Inventor: Danny K. T. Wu
  • Patent number: 5267461
    Abstract: A cylinder guard including a plurality of guard plates, at least one of which is formed with a plurality of non-rotatable bolt head seats and a plurality of bolts having heads non-rotatably seated in the non-rotatable bolt head seats and arranged for mounting the cylinder guard onto a door.
    Type: Grant
    Filed: July 3, 1990
    Date of Patent: December 7, 1993
    Assignee: Mul-T-Lock Ltd.
    Inventor: Noach Eizen
  • Patent number: 5212972
    Abstract: A tamper resistant pop-handle lock is disposed in the door of a vending machine or similar closure, and is used to restrict operation of a spring-biased handle which is seated in a recessed housing and is adapted for manually latching and unlatching the door. The lock has a cylindrical barrel and a rotatable key plug mounted within an opening in the barrel. An axially extending eccentric lug at the inner end of the plug is received in a recess formed on a retractable locking bolt, such that rotation of the plug relative to the barrel causes the locking bolt to move through a second opening in the barrel. A locking surface on the lug-receiving recess engages the eccentric lug when the key plug is in a locked position to prevent radial movement of the bolt and extension of the handle.
    Type: Grant
    Filed: June 15, 1992
    Date of Patent: May 25, 1993
    Assignee: The Eastern Company
    Inventors: Herbert Kincaid, John Crocco, David Malik
  • Patent number: 5209168
    Abstract: A security system for a metal cabinet door comprises a latch adapted to be locked by a lock operating the latching members of the door. These comprise upper and lower strip members each having a plurality of hooks each of which, when the door is closed and latched, is engaged in an opening formed in a locking profiled member attached to the cabinet and at least one rotating sector whose rotation axis is perpendicular to the plane of the door. When the door is closed and latched the sector(s) enter an opening in a longitudinal member attached to the cabinet on the same side as the hinge(s). The sector is operated in the unlatching direction by the latch through a cable and in the latching direction by a return spring.
    Type: Grant
    Filed: September 17, 1992
    Date of Patent: May 11, 1993
    Assignee: Compagnie Generale d'Automatisme CGA-HBS
    Inventors: Claude Chapron, Alain Chappot, Dominique Damas
  • Patent number: 5131189
    Abstract: An antiprying member is secured onto a metal frame adjacent a protective flap member secured onto a security door that is hingedly mounted onto the metal frame. The antiprying member extends along the free end of the flap member and has a thickness at least the same as that of the flap member and is spaced from the flap member no greater than the thickness of the flap member to prevent a prying member from bending the flap member away from the metal frame or to pry open the security door. A pin having an annular notch is secured to the flap member and extends through a hole in the door frame to prevent the door frame from being pried or twisted away from the door.
    Type: Grant
    Filed: May 9, 1991
    Date of Patent: July 21, 1992
    Inventor: Lawrence L. Mascotte
  • Patent number: 5113676
    Abstract: A lock mechanism comprising a casing; a bolt housing and two latch bolts carried by the housing to be individually rotatable about vertical axes in response to engagement with a strikeplate; the bolt housing and latch bolts movable as a unit horizontally forwardly and rearwardly within and relatively to the casing; one latch bolt having a shoulder engageable with one surface on the casing in response to the rotation of the one latch bolt in a clockwise direction to displace the housing and the two latch bolts as a unit horizontally rearwardly by a first increment relative to the casing, whereby the two latch bolts are then positioned to be further engaged in camming relation by the strikeplate, traveling relatively in a first direction to displace both latch bolts and the housing horizontally rearwardly by a second increment relative to the casing.
    Type: Grant
    Filed: December 31, 1990
    Date of Patent: May 19, 1992
    Inventor: Misak Panossian
  • Patent number: 5074606
    Abstract: An assembly for improving closed door security comprises a door having a unitary first member comprising a first elongated flat plate portion lying substantially entirely in a first plane and a first elongated flat blade portion lying substantially entirely in a second plane, the planes being parallel with the end face of said door, the unitary member secured on the door with the blade portion spanning the latch bolt and extending parallel along the end face substantially entirely between the latch bolt and the outside door edge,a doorjamb having a unitary second member comprising a second elongated flat plate portion and having an opening exposing a latch bolt recess, and lying substantially entirely in a third plane and a second elongated flat blade portion lying substantially entirely in a fourth plane the third and fourth planes being substantially parallel with each other and with the first and said second planes, the second plate and second blade portions having an elongated slot therebetween,and wherei
    Type: Grant
    Filed: October 17, 1990
    Date of Patent: December 24, 1991
    Inventors: James W. Priola, James W. Sauder
  • Patent number: 4869087
    Abstract: A security device for a door structure comprises a simple bracket that surrounds the retractable latch element at the edge of the door, the bracket having a return extending along the inside of the door, stopping short of the inside latch or lock actuator. A resilient pad is interposed between the return and the door. The bracket is connected to the latch element, either directly or indirectly upon imposition of a break in force so that, immediately upon imposition of a kick force adjacent the lock, the latch element engages the bracket, thus transmitting the force to the inside return, and through the shock absorber to the inside part of the edge frame member.
    Type: Grant
    Filed: May 16, 1988
    Date of Patent: September 26, 1989
    Assignee: Sabir Locks, Inc.
    Inventor: Robert L. Day
  • Patent number: 4861082
    Abstract: A door security assembly comprises first and second unitary members for being secured in a door and doorjamb frame, respectively, each member comprising a flat planar plate, a flat coplanar blade and a slot therebetween, with each blade received in the slot of the other member when the door is closed.
    Type: Grant
    Filed: May 4, 1988
    Date of Patent: August 29, 1989
    Assignee: Omni Systems, Inc.
    Inventors: James W. Priola, James W. Sauder
  • Patent number: 4852373
    Abstract: A lock protector assembly consisting of a cast protector element, a back up plate and a clamping plate all adapted to fit in the interior of a telephone paystation to substantially improve the resistance of the upper housing of a telephone paystation, with respect to illegal strong arm attack and entry possibilities.
    Type: Grant
    Filed: February 3, 1989
    Date of Patent: August 1, 1989
    Assignee: Palco Telecom Inc.
    Inventor: Gerald B. McGough
  • Patent number: 4823571
    Abstract: A sleeve has at least one formation adapted to hold the sleeve against rotation in a similarly formed opening provided in a panel to be locked against a frame, a lock cylinder rotatably seated in the sleeve and traversing same to extend beyond an end thereof, the extension of the lock cylinder formed with a shank portion having one end of an elongated camming tongue mounted thereon and rotatable by the lock cylinder between a locked position in which the other end of the tongue extends across a separation between the panel and the frame and engages the frame, and an unlocked position in which the tongue lies wholly within an outline of the panel, and brace means mounted on the sleeve and extending substantially to the separation and formed with at least one slot adapted to receive the tongue at least in the locked position thereof.
    Type: Grant
    Filed: August 23, 1988
    Date of Patent: April 25, 1989
    Inventor: James O'Gara
  • Patent number: 4763499
    Abstract: A door security system for the protection of a lock as well as a set of hinges both associated with a door wherein the security system includes a wrap-around cover plate covering surface portions of the exterior and interior of the door adjacent the lock and the lock side surface around the bolt plate of the lock. In addition, structures designed to protect each of the plurality of hinges serving to hang the door on the hinge jamb thereof include a wrap-around cover plate and hinge pin fittings on the inside of the door and a jamb plate and a vertical bar attached to an exterior section which includes a bar surface that is adjacent to a vertically extensive, exterior surface end region of the hinge cover plate when the door is closed.
    Type: Grant
    Filed: April 7, 1987
    Date of Patent: August 16, 1988
    Inventor: John J. Boyle
  • Patent number: 4760721
    Abstract: There is disclosed an improved handle lock assembly of the type generally including a handle lock barrel reciprocally carried relative to a lock stud, the lock stud having an interiorly threaded end for threadedly engaging a fixed stud aperture, the handle lock barrel and lock stud being carried within the confines of a fixed lock guide formed integrally with a handle flange including a handle recess into which the handle may be lockingly secured by a lock provided in the handle and having a bolt for securing the handle lock barrel to the lock guide against a bolt shoulder provided in the handle flange, the improvement consisting of bolt guide shield means carried on the lock guide and extending for a distance down the length of said lock guide, the bolt guide shield means encircling and completely enclosing the lock guide in a manner sufficient to prevent access to the bolt securing the handle lock relative to the handle flange when in the locked position, the bolt guide shield means formed integrally with t
    Type: Grant
    Filed: March 27, 1987
    Date of Patent: August 2, 1988
    Assignee: Chicago Lock Company
    Inventor: Robert Steinbach
  • Patent number: 4751834
    Abstract: A guard plate is used to protect a door from forced entry where the door is used in conjunction with a doorjamb. The door has a lock cylinder in it, and this cylinder is operatively interconnected with a reciprocal bolt for entering an opening in the doorjamb in a conventional manner. The guard plate has first and second interconnected sections. An opening is provided through the first section for accommodating the portion of the lock cylinder which normally is exposed on the surface of the door in which the cylinder is mounted. The first section of the plate then is secured to the door, with the lock cylinder aligned with the opening in the first section. The second section also has an opening through it, and the two sections are interconnected together with a bridge. The bridge causes the second section of the plate to overlie the doorjamb when the door is closed, and the bridge itself overlies the space between the door and the doorjamb when the door is in its closed position.
    Type: Grant
    Filed: July 30, 1987
    Date of Patent: June 21, 1988
    Inventor: Donald D. Beck
  • Patent number: 4712403
    Abstract: A method of protecting lock cylinders from being wrenched or pulled from the door, is provided and consists of a plate with a hole in the back top of the plate, which will accept the cylinder. So when the plate is slid up, the cylinder will lock into the milled groove in the bottom back of the plate, locking said cylinder into the back of the plate. There is a bolt hole through the top front of the plate, to allow the top of the plate to be tightened to the door. The cylinder will hold the bottom of the plate tight to the door.
    Type: Grant
    Filed: May 6, 1987
    Date of Patent: December 15, 1987
    Inventor: Frank Markisello
  • Patent number: 4619123
    Abstract: A stainless steel guard plate for preventing forced entry into certain automobilies by forcing a screwdriver between the door handle mechanism and the outer door panel to unlock the door is retrofitted to the automobile. The handle mechanism is removed from an opening in the door. The guard plate includes a stainless steel plate having an aperture through which an operative portion of the handle mechanism extends, with side flanges of the guard plate extending inwardly along the upper and lower edges of the guard plate aperture and through the original opening in the door panel. A first screw which is accessible through a rear end plate of the door when it is opened, passes through a hole in an inwardly extending tab of the guard plate and into a threaded hole in a tongue member of the handle mechanism. The first screw is tightened, drawing the rear portion of the handle mechanism tightly against the guard plate, pressing it tightly against the outer surface of the door panel.
    Type: Grant
    Filed: January 14, 1985
    Date of Patent: October 28, 1986
    Inventor: Mark L. Hill
  • Patent number: 4611477
    Abstract: A tamper resistant reciprocal cylinder lock comprising mutually engageable structures on the lock sleeve and bolt keeper having the capacity to increase the resistance of the lock sleeve forward portion from disengagement with the lock sleeve inner portion when the lock and keeper mechanism in a locked position are under physical attack.
    Type: Grant
    Filed: July 2, 1984
    Date of Patent: September 16, 1986
    Assignee: David Arlasky
    Inventor: Allan B. Crites
  • Patent number: 4570467
    Abstract: A gate locking system for securely locking a rolling type gate in a closed position within an opposing pair of U-shaped channel guide rails. The guide rails include aligned apertures formed through opposing front and rear walls. The gate also includes an aperture which is aligned with the guide rail apertures when the gate is in the closed position. A guard plate is positioned exteriorly of the guide rails and also includes an aligned aperture. An elongated member of a lock is inserted through the various apertures to lock the members together in the closed position. The head of the lock is retained exteriorly of the guard plate while the distal end of the lock extends beyond the rear wall of the guide rail. A securing member cooperates with an extended end of the elongated lock member to retain the lock in a clamped position between the opposing walls of the guide rail so that the closed gate is captured therebetween. The securing member is under the operative control of a rotatable portion of the lock.
    Type: Grant
    Filed: September 19, 1983
    Date of Patent: February 18, 1986
    Inventor: Vincent Greco
  • Patent number: 4503692
    Abstract: A protective doorknob encasement device which provides a protective cover over the space formed between a door jamb and an exterior doorknob to prevent insertion of a tool to forcibly open the door. The invention includes a mounting plate and a track guide to enable slidable attachment of a protective casement. The track guide is configured so as to orient and restrict movement of the casement along the track and only in a direction toward the exterior door surface. Removal of the casement is permitted by its continued forward motion along the track and is only possible when the door is open. This unidirectional forward motion results from use of spring-biased pawls coupled to the casement which catch in corresponding grooves set in the mounting plate to prevent rearward motion. An opening is provided in the casement in alignment with a key slot of the enclosed doorknob to permit normal access.
    Type: Grant
    Filed: August 23, 1982
    Date of Patent: March 12, 1985
    Inventor: Dean R. Grint
  • Patent number: 4432573
    Abstract: A locking system for safe doors of the type comprising a turnable handle or handwheel for operating one or more sets of bolts between a locked position, wherein the bolts project into the door rim, and an unlocked position, wherein the bolts are withdrawn from the door rim. The system is characterized by bolt-securing means in the form of locking pins adapted to be inserted, in the locked position of the bolt, into aligned bores formed through each bolt and through a wall of a fixed bolt housing block slidingly supporting the bolt during the displacement thereof between the locked and unlocked positions.The pins are displaced into their locking or inserted position immediately after the locking of the bolts during a continuous rotation of the handle.
    Type: Grant
    Filed: July 22, 1981
    Date of Patent: February 21, 1984
    Inventor: Ilan Goldman
  • Patent number: 4426858
    Abstract: Tamper deactivating pivotal motion transmission assembly, e.g. between a motor vehicle deck lid exterior lock and interior latch, comprising a bearing, e.g. containing a bore concentric to an axis; an actuator mounted thereon for pivotal movement about the axis at an activating position, e.g. for releasing the latch, and for deviating movement out of operative relation with the bearing to a deactivating position, e.g. preventing latch release; an urging mechanism, e.g. a spring, urging the actuator to deactivating position; and a pivotal force transmitting shaft, preferably of curved cross section and flexible and extending through the bore, e.g. axially connected at its head end to the actuator for conjoint movement therewith relative to the bearing and having its tail end remote therefrom and arranged for attachment under tension at a remote reference point, e.g.
    Type: Grant
    Filed: June 1, 1981
    Date of Patent: January 24, 1984
    Inventor: Bruno Interrante
  • Patent number: 4407146
    Abstract: A lock assembly for preventing the unauthorized disconnection of a gas line where it is connected to the gas meter. The lock assembly has telescoping male and female shrouds, a bolt type lock and an end cap inserted transversely through the side walls of the telescoped shrouds to lock the two shrouds together to securely enclose the gas line threaded connection, and two turned back ears on the male shroud closed end which cover the female shroud open end side edges to prevent the female shroud and the male shroud from being pried apart by a pair of screwdrivers or the like.
    Type: Grant
    Filed: August 4, 1981
    Date of Patent: October 4, 1983
    Assignee: Omco, Inc.
    Inventor: Anker J. Nielsen, Jr.
  • Patent number: 4370873
    Abstract: A protective housing and latch mechanism for securing the protective housing in a position protecting the customary housing for a coin mechanism and coin box. The protective housing permits normal operation of the coin mechanism and is of sufficient strength to resist deformation by sledge hammer blows. The protective housing carries a latch mechanism which locks the protective housing to the original housing for the coin mechanism so as to prevent separation of the two housings. The latch mechanism includes a pivotally mounted latch member which is urged to a latching position and held in that position by a barrel type lock which is disposed in an inaccessible position within a hardened block.
    Type: Grant
    Filed: February 28, 1980
    Date of Patent: February 1, 1983
    Inventor: Gregory A. Edmunds
  • Patent number: 4248068
    Abstract: Deadlocking mechanism of the kind including a deadbolt slidably located in a casing so as to be projected beyond an end of that casing in an operative position, and to be substantially contained within the casing in an inoperative position. An actuator such as a key operated pin tumbler lock is operable to cause movement of the deadbolt between its two positions. The invention comprises an improved drive connection between the actuator and deadbolt, which includes a toothed pinion rotatable with the actuator and a rack cooperatively engaged by the pinion and arranged for movement with the deadbolt. That drive connection also includes two gear segments which rotate with the pinion and actuator respectively, and have intermeshing engagement during part only of the pinion movement corresponding to movement of the deadbolt between its operative and inoperative positions.
    Type: Grant
    Filed: October 26, 1978
    Date of Patent: February 3, 1981
    Assignee: Ogden Industries Pty. Limited
    Inventors: Hans J. Esser, Gerald F. Dunphy
  • Patent number: 4178027
    Abstract: A door lock guard comprising two cooperating guard plates, the guard plates preferably having identical configurations, the first plate capable of being mounted on the edge of a door and the second plate capable of being mounted on the doorjamb which receives the door. Each guard plate includes a support plate having a generally rectangular shape and including a cutout which allows for the protrusion of either a latchbolt plate or a strike plate. A pair of flanges extend respectively in opposite directions from opposite edges of the support plate. Preferably, the flanges are perpendicular to the support plate. One of the flanges includes an aperture for receiving a tongue and the other flange includes a tongue which extends in generally parallel relation to the support plate.
    Type: Grant
    Filed: July 31, 1978
    Date of Patent: December 11, 1979
    Inventor: Marcel Charron
  • Patent number: 4171837
    Abstract: Burglary-resistant apparatus for denying access to door locks through a door crevice is adapted for mounting on a doorjamb adjacent one or more door locks and comprises a vertically elongate blocking plate disposed over the crevice between the doorjamb and a door, which includes flat surface portions extending over marginal portions of the door and substantially into a groove within the doorjamb thereby making it especially difficult to gain access to the crevice by circumventing the blocking plate. A vertically elongate locking plate has one vertical edge thereof secured to the blocking plate and extends perpendicularly therefrom to form a rigid structural unit having a generally T-shaped cross section.
    Type: Grant
    Filed: January 13, 1978
    Date of Patent: October 23, 1979
    Inventor: Elmer A. McRoy
  • Patent number: 4159838
    Abstract: A door latch bolt locking device for use with a latch bolt having a transverse groove or kerf in its top surface and which will positively prevent the withdrawal of the latch bolt. The device comprises a slideable member adapted to be substantially flush with the intersecting edge surface of the door and the inner surface of the door. The slideable member will have a first portion which will be substantially flush with the inner surface of the door and an integral tongue portion at a right angle to the flat portion and adapted to be substantially flush with the edge surface of the door. The locking device is also provided with means for allowing the slideable member to be moved through a limited vertical distance in a substantially flush relationship with the door surfaces so that the tongue member can move into and out of the kerf provided in the latch bolt to thereby lock the door.
    Type: Grant
    Filed: August 29, 1977
    Date of Patent: July 3, 1979
    Assignee: Mark W. Stephens
    Inventors: Herbert Wilzig, Charles J. Schuessler, Mark W. Stephens
  • Patent number: 4098102
    Abstract: A tamper-proof lock housing is provided for enclosing the ignition lock of an automobile which is ordinarily mounted on the steering column of the automobile. The housing is in two halves; the bottom half fitting about the lower half of the steering column, and is secured thereto. The upper half fits down over the lower half and the ignition lock is securely joined thereto by connection breakers so that the two then box in the ignition key switch. The auto safe lock box protects the steering wheel lock and the ignition key.An auxilliary alarm system is provided consisting of a separate battery, additional horn, voltage regulator and a time delay switch. This could work solely off the auto safe lock box itself, or it could work from an alternate lock installed on the outside of the car.
    Type: Grant
    Filed: March 17, 1977
    Date of Patent: July 4, 1978
    Inventor: Edward O. Kalina
  • Patent number: 4080810
    Abstract: A formed block of metal, plasic, or other suitable material, shaped to adhesively abutt the bevelled face of the bolt of a springlatch door lock, changing it from prism to rectangular shaped parallelpiped.
    Type: Grant
    Filed: April 10, 1975
    Date of Patent: March 28, 1978
    Inventor: Sherman S. Fishman