Escutcheons Patents (Class 70/452)
  • 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: 5216910
    Abstract: An auxiliary lock with an anti-breakage device having a seat combined with a base and an inner ring covered with an outer ring, a latch unit being deposited in the housing and having a recessed opening in an outer end for a reinforcing plate to fit therein and then a face plate sealing up the reinforcing plate to protect the latch unit from breakage by illegal attempt.
    Type: Grant
    Filed: September 2, 1992
    Date of Patent: June 8, 1993
    Inventor: Jui-Chang Lin
  • Patent number: 5176016
    Abstract: An improved automobile handle guard plate assembly which provides added strength via a lipped brace which overlays and strengthens a security plate. The security plate and the brace are secured together with an adhesive and positioned between the exterior door handle and the automobile's door. The door handle is permitted easy access to the locking mechanism within the door via an opening in the security plate. A thief trying to enter the automobile by accessing the locking mechanism through the door, finds a security plate to prevent access and a brace on the security plate to preventing deformation of the security plate.
    Type: Grant
    Filed: March 19, 1992
    Date of Patent: January 5, 1993
    Inventor: Mark L. Hill
  • Patent number: 5056344
    Abstract: An insert for a panel opening, the panel having edges disposed therewith proximate the opening, the insert comprising a resilient member having a perimeter and two ends, the member being flexible in a direction transverse to ends of the member when the insert is inserted in the opening, the member having disposed intermediate the ends thereof at least one recess having a bottom, the recess for securing the edges of the panel therewith when the insert is inserted in the opening of the panel, the bottom of the recess being positioned to allow for the lateral movement of the insert in relation to the panel opening transverse to the ends of the member.
    Type: Grant
    Filed: September 20, 1990
    Date of Patent: October 15, 1991
    Assignee: KTM Locks, division of Atoma International Inc.
    Inventor: Andrzej Bartczak
  • Patent number: 5029460
    Abstract: A guard for a door lock and cylinder is provided and consists of a face plate to cover and protect the cylinder while allowing a key to be inserted within the cylinder to operate the lock. The face plate prevents the lock from being separated from the door and is designed to receive bolts from typically four basic kinds of door locks so as to be a universal type of protector for the four locks.
    Type: Grant
    Filed: July 20, 1989
    Date of Patent: July 9, 1991
    Inventor: George Anastasiou
  • Patent number: 4998953
    Abstract: A lock assembly for an automobile door comprises a lock mechanism, arranged to be offered up and connected to the door from the inside and an escutcheon arranged to be offered up to the door from the outside and to be fixed to the lock mechanism by means of a U-shaped clip, access to which is subsequently prevented by the installation of the door handle. This facilitates the production process, as it enables the finishing step of applying the escutcheon to be delayed.
    Type: Grant
    Filed: October 10, 1989
    Date of Patent: March 12, 1991
    Assignee: Rolls-Royce Motor Cars Limited
    Inventor: Clive J. Wilkin
  • Patent number: 4960628
    Abstract: A resilient gasket seals a connection between a wallplate rim and a wall, and is formed in situ by locating an insert on the backside of the wallplate inside of the rim and then introducing a flowable gasket material therebetween. The insert serves as a temporary dam during the in situ formation of the resilient gasket and is adapted to be removed from the wallplate prior to mounting to the wall. The insert extends above the wallplate rim, thereby protecting the resilient gasket during shipping, and also enabling vertical stacking of the wallplates prior to curing of the flowable gasket material. Use of this insert reduces the manufacturing time and labor costs in forming such wallplates.
    Type: Grant
    Filed: August 10, 1989
    Date of Patent: October 2, 1990
    Assignee: Nordson Corporation
    Inventors: William C. Stumphauzer, Raymond M. Fetcenko
  • Patent number: 4873853
    Abstract: An escutcheon is provided for shielding a portion of a door panel or the like. The escutcheon includes a cover plate having outer and inner faces. The cover plate is formed to include an axially extending lock cylinder-receiving cavity having an annular rear opening in the inner face and a figure-8-shaped front opening in the outer face. A lock cylinder can be mounted in the cavity to display a figure-8-shaped front face of an interchangeable lock core housed in the lock cylinder through the figure-8-shaped front opening in the cover plate.
    Type: Grant
    Filed: March 23, 1989
    Date of Patent: October 17, 1989
    Assignee: Best Lock Corporation
    Inventor: William R. Foshee
  • 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: 4869083
    Abstract: A cylindrical lever handle lock mounted in a door panel having a transverse bore therethrough is secured against rotation due to torque applied to the lever handles. The lock mechanism includes a lock chassis having a pair of chassis support members each having a pair of slots on their peripheries. A pair of support plates having inwardly extending tongue members slide into the support plate openings. The support plates are of a diameter greater than the bore and have openings in the periphery of each which corresponds with a hole drilled in the door panel outside of the bore. Door handle roses are secured over the support plates by through-bolts which pass through the support plate peripheral openings and the drilled door holes. Threaded bushings are also utilized to tighten the support plates on either side of the bore. Additional tabs and screws may be used to non-rotatably secure the support plates to the door panel.
    Type: Grant
    Filed: April 26, 1988
    Date of Patent: September 26, 1989
    Assignee: Sargent Manufacturing Corporation
    Inventors: Paul H. DeMarseilles, Robert D. Glenn, David A. Sorensen
  • Patent number: 4841754
    Abstract: A door handle assembly adapted to be mounted upon a deadbolt lock assembly so that said door handle assembly forms a part of the deadbolt lock assembly. Preferably, the door handle assembly includes an outside door handle member mounted upon the outside face of the door and surrounding the lock cylinder and an inside door handle assembly mounted upon the inside face of the door and surrounding the turn-key of the deadbolt assembly.
    Type: Grant
    Filed: June 20, 1988
    Date of Patent: June 27, 1989
    Inventor: Aroll A. Jones
  • Patent number: 4790162
    Abstract: This mounting and protection plate for door lock handles is applicable notably as an ornamental fitting to the doors of private houses. The plate (5) comprises a back recess (9) in which a spiral return spring (10) is disposed. The inner turn of the spring has a square configuration engaged by the square-sectioned handle-bar of the door lock which interconnects the handle and the lock mechanism, and the outer turn of the spring is anchored to the plate by engaging a groove formed therein, the spiral spring constantly urging the handle to its normal, inoperative position, independently of the lock spring.
    Type: Grant
    Filed: September 4, 1987
    Date of Patent: December 13, 1988
    Inventor: Werner Thur
  • Patent number: 4782677
    Abstract: The lock repair plate has threaded holes at the same locations as the holes in a standard mounting plate, the threaded holes being in registration with the holes in the bolt casing, which are traversed by machine screws for mounting the casing on the repair plate. The repair plate is further provided with a plurality of screw holes offset from the threaded holes and which are traversed by plate screws for mounting the repair plate on a door, the plate also being formed with an opening through which the tongue of the lock cylinder can extend, the opening being flanked by first and second pairs of apertures formed in the plate and being selectively in registration with the standard threaded bores of the cylinder which flank the tongue, one of the pair of apertures being traversed selectively by a pair of cylinder screws for securing the cylinder to the plate.
    Type: Grant
    Filed: April 6, 1987
    Date of Patent: November 8, 1988
    Inventor: James O'Gara
  • Patent number: 4765165
    Abstract: A supporting surface is formed with a cylinder hole, a cover plate is provided with a bulge having a keyhole formed in registration with the cylinder hole, in which there is disposed the noncircular outlined shank of a lock cylinder, the lock cylinder having a head disposed in the bulge. A holding plate formed with a noncircular opening in registration with the cylinder hole and complementary to the noncircular shank outline is in engagement therewith for preventing rotation of the lock cylinder, while a plurality of bores are formed in respective mutual alignment in the cover plate, supporting surface, and holding plate whereby, respective fastening means traverse the aligned bores for mounting the lock plate assembly on the supporting surface with at least the cover plate on the outer side thereof.
    Type: Grant
    Filed: May 15, 1987
    Date of Patent: August 23, 1988
    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: 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: 4708007
    Abstract: A tamperproof, secure mounting system for a deadbolt lock is adapted to accommodate a wide range of door thicknesses. The device includes a front section and a rear section which are passed through the front and rear ends of a hole formed through the door. The portions of the front and rear sections which meet within the door hole are threaded together to clamp the door between the front and rear sections. Supplemental fastening means are provided to secure the front and rear sections together to prevent further relative rotation between the two. The front section carries the tumbler mechanism so that thekey slot of the tumbler mechanism is exposed at the front of the door. The rear section is hollow and provides a passageway by which the rear end of the tumbler mechanism may be connected to the lock which mounts on the inner face of the door. Means are provided for registering the rearwardly facing surface of the rear section with the lock.
    Type: Grant
    Filed: September 15, 1986
    Date of Patent: November 24, 1987
    Inventor: Harry J. Stoia
  • Patent number: 4688409
    Abstract: A high security drop-bolt lock assembly for a door includes a cylinder lock carried by a guard plate positionable on the outside of the door with the cylinder lock within the door, and a drop-bolt assembly on the inside of the door. The drop-bolt assembly is connected to protected studs extending from the guard plate to make a strong unitary construction extremely difficult to defeat and protecting the cylinder lock behind the guard plate and within the door.
    Type: Grant
    Filed: June 6, 1986
    Date of Patent: August 25, 1987
    Assignee: Medeco Security Locks, Inc.
    Inventors: Ronald N. Oliver, Stevie C. Roop
  • Patent number: 4671089
    Abstract: A combination door latch and deadbolt assembly includes an improved latch mechanism and deadbolt mechanism designed for use with doors having a variety of standard size backset and cross bore dimensions. The latch and deadbolt mechanisms are carried by escutcheons havings breakaway tabs at varying diametric positions to fit securely within door cross bores of different standard sizes. The latch mechanism further includes an improved mounting arrangement for left- or right-hand mounting and positive centering of lever-type door handles, together with a simplified cam-actuated latch retractor. The deadbolt mechanism includes an improved bolt linkage which provides a desired bolt throw when a relatively small door backset and/or cross bore size is used. The deadbolt mechanism further includes an improved thumb turn rotatable through ninety degrees between orientations representative of deadbolt position.
    Type: Grant
    Filed: January 31, 1986
    Date of Patent: June 9, 1987
    Assignee: W&F Manufacturing, Inc.
    Inventors: Paul D. Fleming, David L. O'Day
  • Patent number: 4640112
    Abstract: There is disclosed a secured door knob and escutcheon assembly, wherein the assembly is protected against tampering and unauthorized removal from either side of a door, when said door is in the closed position. The assembly includes a knob arrangement having mounting means which includes a bearing sleeve that is threadably engaged with a mounting plate affixed to the door. Rotation of said bearing sleeve is precluded by an apertured escutcheon plate through which said bearing sleeve is engaged. The bearing sleeve and escutcheon aperture have complementary flats or non-round surfaces such that when the escutcheon is in place rotation of the bearing sleeve is precluded. Further, the escutcheon plate is held in place by holding means that can only be released when the door is opened. In the disclosed embodiment the holding means is a key cylinder engaged through a second aperture in the escutcheon plate and fixed in place by a set screw mounted in the edge face of the door.
    Type: Grant
    Filed: December 4, 1985
    Date of Patent: February 3, 1987
    Assignee: R. R. Brink Locking Systems, Inc.
    Inventor: Raymond V. Kambic
  • Patent number: 4598563
    Abstract: The cylinder lock has a key guide which has a cylindrical extension fitting inside a cylindrical shell. A number of tumblers fit in the tumbler plug which is mounted inside the extension so the lock tab on each tumbler can project through a slot in the extension into one of two lock grooves inside the shell. The cam surface on the proper key will move the lock tabs out of the groove so the key guide and the plug and the tumblers can rotate in unison inside the shell. The tumbler plug engages a bolt driver which is journaled in and projects rearwardly from the shell. The projecting portion is threaded and has a squared portion on which a bolt is mounted and retained by a nut threaded on the threaded portion. The shell is threaded and also has opposed flats registering and lock relative to a bracket which enables mounting the lock on the rear of a door with an escutcheon plate on the front of the door.
    Type: Grant
    Filed: July 2, 1984
    Date of Patent: July 8, 1986
    Inventor: Nathan L. Berkowitz
  • Patent number: 4597274
    Abstract: A cover mechanism for covering a lock having a key opening in a lock support surface includes a cover plate which may be pivoted between a closed position in which the key opening of the lock is covered and an opened position in which the key opening is exposed. A detent arrangement includes a first stop which engages the cover plate to hold it in its opened position until insertion of a key into the key opening, whereupon a second stop of the detent arrangement engages the cover plate and prevents movement of the cover plate into its closed position until withdrawal of the key is initiated. A damping arrangement slows movement of the cover plate from its opened position into its closed position.
    Type: Grant
    Filed: March 14, 1985
    Date of Patent: July 1, 1986
    Assignee: The D. L. Auld Company
    Inventors: Charles M. Coscia, Michael K. Scott
  • Patent number: 4587816
    Abstract: A lock assembly of the type mounted on a door or like closure structure and including two lock cylinders each at least partially encased and surrounded by a casing structure each of which has reinforcing means formed thereon so as to prevent collapse or destruction of said casing structure upon receiving an extreme force such as a blow with a hammer or the like. An activating structure is interconnected between a bolt element and each of the lock cylinders such that rotation of either lock cylinder, as by a key, causes at least partial rotation of the activating structure and linear movement of the bolt element into either an extended or retracted position.
    Type: Grant
    Filed: September 2, 1983
    Date of Patent: May 13, 1986
    Inventor: Fidel Garcia
  • Patent number: 4586355
    Abstract: A lock cylinder cover includes an escutcheon having a lock cylinder opening and a pivotal cover biased to cover the lock cylinder. A spring detent secured to the underside of the escutcheon has a stop surface which bears on the underside of the cover until opening movement permits the detent to spring out and engage a shoulder of the cover to hold the cover open. A blocking lever pivotally mounted on the underside of the escutcheon is spring biased to engage the detent. The detent has a cam surface poised in the path of unlocking rotation of the key so that the key cams the detent inwardly to release the stop surface from the cover so that the cover is spring biased to engage the key and then key removal permits the cover to close. The inward movement of the detent permits the lever to pivot into blocking engagement with the detent to retain the axially inward position in which the stop surface is withdrawn from engaging the cover.
    Type: Grant
    Filed: March 28, 1985
    Date of Patent: May 6, 1986
    Assignee: General Motors Corporation
    Inventors: David N. Lee, David B. Ballantyne
  • Patent number: 4573334
    Abstract: A deadbolt lock is adaptable for installation in doors of various thicknesses. The lock body and interior rosette are established at a fixed position with respect to the interior surface of the door in which the lock is mounted. A cylindrical threaded coupler is threaded to an extension of the exterior keyway-carrying rosette of the lock and the coupling between the threaded cylinder and the threaded extension of the rosette are adjusted in accordance with the thickness of the door to which the lock is installed. The interior threaded coupling cylinder is then inserted within the bore of the lock, the mounting being achieved without interference with the deadbolt throw/retract mechanism interior of the lock body.
    Type: Grant
    Filed: January 24, 1983
    Date of Patent: March 4, 1986
    Inventor: Alois Crepinsek
  • 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: 4549418
    Abstract: A lock box and method of making same are provided wherein such lock box is mountable in an aperture of a cabinet wall and comprises; a coin receptacle dimensioned for passage through the aperture and having an open top and a front wall portion; a face member having a bore therethrough, a peripheral edge, and an inside surface; removable fasteners for fastening the receptacle to the face member by fastening the front wall portion thereto; at least one locking bolt carried by the face member and being movable to extended and retracted positions relative to a portion of the peripheral edge of the face member to engage a portion of the cabinet wall and fasten the lock box thereto upon extension of the bolt; a lock assembly carried by the face member and provided for operating the bolt with the lock assembly being accessible by a key through the bore; and the lock box includes dual purpose components for supporting the entire lock assembly inwardly of such inside surface and protecting same against removal thereof
    Type: Grant
    Filed: March 14, 1983
    Date of Patent: October 29, 1985
    Assignee: Monarch Tool & Manufacturing Co.
    Inventor: Mitchell A. Hall
  • Patent number: 4548061
    Abstract: In an attachment fitting for cylinder locks (3, 3') the heads (4a) of a plurality of screws (4) are seated in a widened hole portion (5a) in the lock. A plugging or latching element (6) is arranged to co-act with a sealing pin (7) in a manner such that when the plug (3a) of the cylinder lock (3) is turned to a given position by means of a key, the sealing pin (7) moves inwardly in a peripheral hole (9) arranged in the plug, against the action of a spring (10). This enables the plugging or latching element (6) to be removed. Because of the presence of the plugging or latching element (6), however, the screw heads (4a) cannot be reached in order to loosen the screws by persons not having the correct key to the cylinder lock. The screws connect the cylinder lock (3) to a further cylinder lock (3') on the other side of the door.
    Type: Grant
    Filed: June 22, 1982
    Date of Patent: October 22, 1985
    Assignee: GKN-Stenman AB
    Inventor: Erik A. Nilsson
  • Patent number: 4530223
    Abstract: A rim cylinder protection unit includes a single flat thick solid hardened steel guard plate counterbored to receive the rim of the cylinder. The cylinder is secured to the plate and prevented from rotation by cooperation with a cylinder retaining plate attached to the backside of the guard plate. The thick solid steel guard plate has heavy mounting studs welded by hardened material to the plate to extend through the door and these studs are protected by hardened steel sleeves to prevent burglars from chiseling through the studs. A replaceable cover conceals the rugged steel guard plate.
    Type: Grant
    Filed: November 1, 1982
    Date of Patent: July 23, 1985
    Assignee: Medeco Security Locks, Inc.
    Inventor: Roy N. Oliver
  • Patent number: 4522048
    Abstract: A lock and door reinforcing plate device comprising plate members adapted to be secured to the opposite faces of the door by common bolt members which extend through the plates and the door and the lock assembly, a tube member is secured to the inner face of one of the plate members and extend through the door for encasing the usual lock cylinder assembly, the lock cylinder assembly is secured to one of the plates and is disposed within the tube in a manner substantially precluding unauthorized tampering or removal of the lock cylinder assembly thus substantially precluding unauthorized unlocking of the lock assembly.
    Type: Grant
    Filed: November 7, 1983
    Date of Patent: June 11, 1985
    Inventor: Phillip N. Davis
  • Patent number: 4502720
    Abstract: A door latch mechanism for controllably securing a door, the latch mechanism of the type having a spindle and operating handles, comprises a fusible connecting member rigidly attaching the handle and spindle at room temperature, the fusible connecting member melting at elevated temperatures to permit relative rotation of the handle and spindle. The handle is mounted using a connecting member which is attached to the latch trim using a screwless connection. It is particularly applicable to latches using lever handles in that a positive positioning mechanism holds the handles at their selected positions, regardless of wear and age.
    Type: Grant
    Filed: June 4, 1982
    Date of Patent: March 5, 1985
    Assignee: Baldwin Hardware Manufacturing Corporation
    Inventors: Peter Fayerman, Elwood Shaffer
  • Patent number: 4489577
    Abstract: An improved lock mechanism whereby the raised element, or rosette, provided exteriorly for defining the keyway and providing secured access thereto is coupled to the lock body by mechanical means utilizing rigid interference fit lock mechanisms. Latch pins are emplaced within tapered latch recesses and the latch pins coupled one to another. A locking pin is driven into interference relationship with at least one of the latching pins to bar its movement within the latching recess and, thus, due to the fact that all latching pins are coupled one to another, an extremely strong coupling of the rosette to the lock body results.
    Type: Grant
    Filed: December 10, 1982
    Date of Patent: December 25, 1984
    Inventor: Alois Crepinsek
  • Patent number: 4484463
    Abstract: A guard for protecting the cylinder of a door lock from removal comprises a substantially rectangular plate having a first portion including a section adapted to fit over the lock cylinder and a second portion offset from the first portion, the second portion traversing the gap between the door and the doorjamb for protecting the bolt.
    Type: Grant
    Filed: September 27, 1982
    Date of Patent: November 27, 1984
    Assignee: Lori Corporation
    Inventor: Thomas F. Hennessy
  • Patent number: 4397168
    Abstract: An L-shaped guard plate for reinforcing a door in the area of the door lock assembly. The L-shape provides a strengthening function without introducing any misalignment in the position of the lock bolt of a door with respect to the strike plate carried in a door frame. The device is thus both effective and easily installed on most doors. The guard plate may include integral tabs which engage slots in the housing of the lock unit. The tabs serve to provide increased resistance to the application of rotational forces to the lock unit.
    Type: Grant
    Filed: May 18, 1982
    Date of Patent: August 9, 1983
    Assignee: TRE Corporation
    Inventors: Anthony J. Rotondi, Richard O. Mullich
  • Patent number: 4338804
    Abstract: A door latch construction has exterior and interior operators connected through a latch driving mechanism operable for extending a bolt from a door edge. The exterior operator includes a lock cylinder telescoped by a thickened, hardened metal guard collar with the guard collar longitudinally inwardly abutting a metal shield retaining the shield inwardly against an exterior face of the door. The shield also extends inwardly of the door interior at least partially annularly around a portion of the latch driving mechanism thereby deterring manipulation of the latch driving mechanism by penetration through the door exterior face. The lock cylinder longitudinally inwardly abuts the guard collar so that the guard collar retained between its lock cylinder abutment and its shield abutment is rotatable to deter exterior attack against the overall exterior operator.
    Type: Grant
    Filed: September 26, 1980
    Date of Patent: July 13, 1982
    Assignee: Emhart Industries, Inc.
    Inventor: Paul G. Solovieff
  • Patent number: 4316371
    Abstract: A bolt assembly used for locking and unlocking a door-leaf, which comprises a bolt movable from the outside by a key introduced into the barrel of a safety cylinder, the housing of the barrel comprising a flange which can be immobilized in rotation and translation by three plates fixed to the outer surface of the door by bolt means, a fourth plate covering said bolt means. This plate is treated against drilling, and the last three plates are soldered to each other and lodged in a housing.By loosening the bolt means and removing the first plate, the safety cylinder can be replaced.
    Type: Grant
    Filed: January 18, 1980
    Date of Patent: February 23, 1982
    Assignee: Fichet-Bauche
    Inventor: Claude Del Nero
  • Patent number: 4296619
    Abstract: A lock plate (2) is secured to a door (1) or the like, by means of two upper and two lower securing means (4,5). A recess formed in one side edge (1b) of the door is arranged to accommodate a lock housing (10) having a lock pillar (12) which covers the recess. The lock pillar (12) is secured by an upper and a lower screw (6) which simultaneously serve as anchoring elements to lock the plate securing means against rotation. Each of the securing means comprises a screw-thread (5) provided with an opening or recess (5d) and co-operating with a screw element (4) which is non-rotatably received in a hole in the plate (2). Each of the anchoring screws (6) is passed through two screw-threaded sleeves (5) provided with recesses and located on mutually the same level. The anchoring screws (6) co-act with two sleeve parts (7,8) which partially surround said screws, of which sleeve parts one (7) is screw-threaded for engagement with the screw thread.
    Type: Grant
    Filed: December 20, 1979
    Date of Patent: October 27, 1981
    Assignee: GKN-Stenman AB
    Inventor: Bo G. Widen
  • Patent number: 4294093
    Abstract: A key-removable lock core of the same size as a standard core, to fit standard core receptacles, and having a key plug of improved pull resistance. The core body of figure-8 cross section has a key plug lobe which contains a sleeve having a core retainer lug movable by a control key between a projected core retaining position and a retracted core release position. A key plug having an enlarged rear head is inserted from the rear into the cylindrical bore defined by the sleeve, with the head overlapping the rear of both the sleeve and the key plug lobe of the body. A segment is inserted in a slot traversing the key slot and is trapped therein by the sleeve to form a key stop. The key plug is held in place by a C-shaped retaining ring in a circumferential groove in such plug at the front face of the body, and is trapped in place by a face plate fixed to the body by a blind annular rivet.
    Type: Grant
    Filed: June 14, 1979
    Date of Patent: October 13, 1981
    Assignee: Best Lock Corporation
    Inventors: Walter E. Best, William R. Foshee, Max L. Flack
  • Patent number: 4237712
    Abstract: A latch and cylinder guard which can be bolted through a door without interfering with the latch and providing a double layer of metal in the latch vicinity.
    Type: Grant
    Filed: October 20, 1978
    Date of Patent: December 9, 1980
    Inventor: David J. Cramer
  • Patent number: 4236396
    Abstract: A lockset having a rim mounted latch bolt and a dead bolt arranged in side-by-side relation on a door for engagement within side-by-side openings in a common strike. The dead bolt projects from an edge of the door and is operated from the inside by a turnpiece assembly and from the outside by a key operated lock cylinder mounted in fixed position relative to the door. Inside and outside lever handles journalled for limited angular movement on the turnpiece assembly and on the lock cylinder, respectively, operate the latch bolt from the inner and outer side of the door. The turnpiece assembly is connected to the lock cylinder and the inside lever handle is connected to the outside lever handle through a single transverse bore formed in the door. The present lockset may be installed on a door to replace a cylindrical lockset of key-in-knob type having a single latch bolt without boring an additional hole in the door.
    Type: Grant
    Filed: October 16, 1978
    Date of Patent: December 2, 1980
    Assignee: Emhart Industries, Inc.
    Inventors: Walter E. Surko, Jr., LeRoy Hart
  • Patent number: 4196602
    Abstract: A latch handle of the type having a lever which rotates about a shaft normal to one end is locked by a key-controlled pin engaging the second end of the lever.
    Type: Grant
    Filed: May 15, 1978
    Date of Patent: April 8, 1980
    Assignee: Elkem-Spigerverket A/S
    Inventor: Petter O. Akselsen
  • Patent number: 4192161
    Abstract: An escutcheon and cover assembly for a lock cylinder is provided with a spring biased pivotal arrangement and stops which cooperate to provide normal opening and closing movement of the cover for access to the lock cylinder and in addition, provide for pivotal movement of the cover in an unorthodox manner to provide access to the escutcheon for attaching same about the lock cylinder.
    Type: Grant
    Filed: September 18, 1978
    Date of Patent: March 11, 1980
    Assignee: General Motors Corporation
    Inventor: Hans J. Borlinghaus
  • Patent number: 4139999
    Abstract: A protective door shield and mounting for a lock, particularly a mortise lock or double lock, including a generally U-shaped plate that engages the swingable edge of the door in the region of the lock and a plurality of interchangeable inserts seated in openings provided in opposing side panels of the plate. Apertures in the inserts accommodate door knob shanks, lock cylinders, thumb turns and the like. The shield permits the substitution of a lock having a different arrangement of apertures without replacing the door, while it strengthens the door and provides a convenient push plate. Since the inserts are interchangeable, a standardized shield may be readily adapted for use with a wide variety of locks. The lock face plate is received by a recess in the shield and can be surrounded by a trim plate, if required.
    Type: Grant
    Filed: February 3, 1978
    Date of Patent: February 20, 1979
    Assignee: M.A.G. Engineering Mfg. Co.
    Inventor: Howard M. Allenbaugh
  • Patent number: 4129020
    Abstract: A plate is affixable to the body of an automotive vehicle over a hole in the trunk of the vehicle for replacing the trunk lock of the vehicle. The plate has a central aperture formed therethrough and a protrusion therearound. The protrusion has a slotted hole formed through a base end thereof with a plurality of keyway slots formed therearound to accommodate a trunk lock replacement.
    Type: Grant
    Filed: September 9, 1977
    Date of Patent: December 12, 1978
    Inventor: Neil Gonzalez
  • Patent number: 3965710
    Abstract: A door lock in which a decorative escutcheon is telescoped onto a tubular barrel which houses a lock cylinder. A key on the escutcheon fits into a slot in the barrel and normally holds the escutcheon in a proper angular orientation with respect to the barrel. If the escutcheon is forcibly turned with a pipe wrench or the like, the key shears away and allows the escutcheon to spin freely on the barrel so as to prevent torque from being transmitted to the barrel.
    Type: Grant
    Filed: April 14, 1975
    Date of Patent: June 29, 1976
    Assignee: Amerock Corporation
    Inventor: Donald L. McCurdy
  • Patent number: 3939680
    Abstract: Installation for mounting a door panel or rosette on a door including fastener means such as at least one pin or lock screw extending between the panel and door. The pin is fastened to and extends from the door and is grippingly engaged in a bore formed in a projection of the panel. The pin is mounted in either the door or a door lock receptacle.
    Type: Grant
    Filed: May 1, 1973
    Date of Patent: February 24, 1976
    Assignee: Otto Grosssteinbeck GmbH
    Inventor: Karl-Josef Heidkamp