Portable Patents (Class 292/288)
  • Patent number: 5007263
    Abstract: The present invention relates to an improved security device. The improved security device includes a U-shaped member which is designed to engage the shaft of a doorknob. Attached to the U-shaped member is a locking plate which has openings therein to receive either the latch of a deadbolt or the key head of a key inserted into a deadbolt. The improved security device, when in place, prevents entry into a dwelling by a person unlocking a deadbolt by preventing the rotation of a deadbolt latch or a key head inserted into the deadbolt.
    Type: Grant
    Filed: June 22, 1990
    Date of Patent: April 16, 1991
    Inventor: Bryan V. Taylor
  • Patent number: 5004279
    Abstract: The present invention relates to an improved door latch holder designed to be mounted on the two knobs of a door and having a central portion designed to overlie a door latch. In the position described above, the door latch will be retracted into the door so that the door may be opened and closed without twisting one of the knobs thereof.
    Type: Grant
    Filed: July 20, 1989
    Date of Patent: April 2, 1991
    Inventor: Ruth Radcliff
  • Patent number: 5000498
    Abstract: An apparatus for preventing the unlocking of a deadbolt lock with a key in which clamping arms are used to grip a deadbolt knob or key on the opposite side of the door and are held in place by a retaining pin which is inserted into a cavity in the door. The use of various clamping materials and types provides a degree of versatility to the apparatus.
    Type: Grant
    Filed: August 3, 1990
    Date of Patent: March 19, 1991
    Inventor: Lewis E. Upchurch
  • Patent number: 4993761
    Abstract: A removable elongated positive lock for a sliding closure unit having fixed vertical framing structures and a sill mounting a fixed door and a sliding door movable to open and closed positions, with each of the fixed and sliding doors having oppositely disposed vertical end frame members and a horizontal bottom frame member. The elongated positive lock engages the fixed vertical framing structures and one of the sliding door's vertical end frame members to effect positive lock of the sliding door in its closed position to prevent forced entry. Insulation carried by the positive lock insulates and seals the door sill and both fixed and sliding doors against cold conducted from the outside as well as drafts.
    Type: Grant
    Filed: June 4, 1990
    Date of Patent: February 19, 1991
    Inventor: John E. Paskert
  • Patent number: 4991888
    Abstract: A child-proofing device for a tape cassette player having a flanged tongue element insertable through a cassette opening past the door thereof and adapted to be pulled back through an exterior block with detent means to hold the door closed, and to be removed by releasing the detent means, pushing the tongue element forward and then pulling it out of the cassette opening as the door is held open.
    Type: Grant
    Filed: February 7, 1990
    Date of Patent: February 12, 1991
    Inventor: Edwin T. Cinnamond
  • Patent number: 4976371
    Abstract: A lid securing device is provided for receptacles having a receptacle body and a receptacle lid. The lid securing device preferably includes at least one lid strap and a receptacle strap. The lid strap has a first engagement structure at least at one end thereof. The receptacle strap is adapted to circumferentially engage the receptacle body and has a second engagement structure. The first and second engagement structures are adapted to detachably engage ends of the lid strap to the receptacle strap. The receptacle strap and lid strap preferably are constructed from an elastic material, such that they can be securely stretched across the receptacle and receptacle lid, respectively.
    Type: Grant
    Filed: August 15, 1989
    Date of Patent: December 11, 1990
    Inventors: Jeffrey A. Wise, Charles E. Naperski
  • Patent number: 4971374
    Abstract: The combination of lock assisting devices forming the home security protection kit of the present invention was determined as a result of extensive effort to determine the appropriate product mix to help secure an apartment, condominium, or small home, based upon visiting many apartments, condominium developments, and neighborhoods where small homes are located. These visits resulted in taking inventory of the number of hinged doors, sliding glass doors, ground level windows, and other design features that were in need of some type of auxiliary security device. Based upon this research, it was determined that a product mix of four metal window clamps, four window pins for wood sash windows, one patio door clamp for a sliding glass door, four anti-liftout plates of two different thicknesses for sliding glass doors, and two door braces satisfied the requirements of securing a condominium, apartment, or small home. Therefore, the contents of the kit of the present invention will secure a majority of dwellings.
    Type: Grant
    Filed: March 3, 1989
    Date of Patent: November 20, 1990
    Inventors: Herman E. Lovell, Randle Richardson
  • Patent number: 4955648
    Abstract: A security apparatus for preventing opening of a hinged door from the inward swinging side, the door being received in a door frame having a door facing on the outward swinging side, the door including a door knob extending from the outward swinging side, the door knob having a shaft portion, the apparatus having a web portion having first and second spaced ends, a first flange portion depending in a first direction from the first end of the web portion and generally transversely thereto, the first flange portion having a first notch for receiving the shaft portion, a second flange portion depending in the second direction from a second end of the web portion and generally transversely thereto, the second flange portion having an inner surface which faces in a direction toward an imaginary plane passing through the first flange portion transversely to the web portion such that when the door is closed and the shaft position of the door knob on the outward swinging side is received in the notch of the first fla
    Type: Grant
    Filed: June 7, 1989
    Date of Patent: September 11, 1990
    Inventor: Harmon R. Miller
  • Patent number: 4932708
    Abstract: The present invention provides a cover for use in a vehicle such as an automobile for covering door operating elements thereby concealing them from children. The cover is in the form of a rectangular box-like housing which is placed over any upwardly projecting elements such as a locking button, the housing having a bowed front flange which hides such elements as a latching handle on the inside of the door. A rear flange can be inserted between the window and the lower door portion to retain the cover in position.
    Type: Grant
    Filed: November 28, 1989
    Date of Patent: June 12, 1990
    Inventor: Sandra J. Taub
  • Patent number: 4915430
    Abstract: A tamper resistant latch comprising a movable member having a latch engaging arm extending therefrom, and a keeper plate capable of releasably receiving the latch arm. The latch may be used to prevent unauthorized entry into enclosures such as cabinets. The invention is best suited for, but by no means limited to, use with cabinets having glass panel doors. When the latch is engaged the glass doors are secured in the closed position.
    Type: Grant
    Filed: October 28, 1988
    Date of Patent: April 10, 1990
    Assignee: Mobil Service Systems, Inc.
    Inventor: Lawrence Vitale
  • Patent number: 4900075
    Abstract: An auxiliary safety chain device for securing stud/loop retainer safety latching type devices is disclosed. The device includes a stud securement member secured to the stud of the safety latch device. A coupling member is coupled with the loop retainer. A locking mechanism secures the coupling member and the stud securement member together to lock the device.
    Type: Grant
    Filed: August 9, 1988
    Date of Patent: February 13, 1990
    Inventor: William C. Smith
  • Patent number: 4878701
    Abstract: A portable door lock for securing a door from the interior. The lock includes a retractable blade (10) for interaction with the door strike plate and a handle (12) including mechanism to prevent motion of the blade when the handle is not coliner with the blade.
    Type: Grant
    Filed: April 16, 1987
    Date of Patent: November 7, 1989
    Assignee: Advanced Products & Technologies
    Inventors: Stephen A. Rondel, James B. Dobson
  • Patent number: 4856831
    Abstract: A security device for an outwardly swining door is shown for use on a door having an interior and exterior door walls and which is mounted in a door frame having opposed, upright door facings. The device includes a pair of restraining bars, one of which is stationary and affixed to the interior wall of the door. The stationary bar is arranged generally perpendicular to and spaced-apart from the door facings on the interior wall of the door. The stationary bar has an opening formed at either end thereof which is adapted to receive the mounting member of a removable bar which overlays the stationary bar and spans the door facings when in place to prevent the door from swining outwardly. The mounting elements of the removable bar are adjustable in length to accommodate doors of various sizes and include curved end portions which are received within the stationary bar openings to thereby mount the removable bar on the stationary bar.
    Type: Grant
    Filed: August 30, 1988
    Date of Patent: August 15, 1989
    Inventor: Ralph V. Roden, Jr.
  • Patent number: 4852921
    Abstract: A door security device is formed as a plurality of bars wherein a first bar is telescopingly received within a second bar. The extended length of the telescoping bars are of a span greater than that of an associated door frame. A bifurcated door knob latching bracket is orthogonally adjustable relative to the aligned axis of the aforenoted bars for positioning of the bracket in an overlying relationship to a door knob secured to a door fitted within the aforenoted framework. A pair of spaced resilient pad means are secured to each terminal end of the telescoping bars in contact with the door frame to accordingly prevent unauthorized opening of the door when the instant invention is secured relative thereto.
    Type: Grant
    Filed: May 3, 1988
    Date of Patent: August 1, 1989
    Inventors: Eugene Gilbert, Cynthia J. Gilbert
  • Patent number: 4846513
    Abstract: A sliding truck window bar lock includes a pair of bars, each bar being hingedly mounted atop a vertically oriented post and collar asembly and adapted for mounting to the rear wall of a passenger compartment in a pick-up truck such that an operator may move the bars into a locking orientation intermediate the edge of a sliding glass window and the window frame. Each bar may consist of a pair of telescoping tubes, each tube having a plurality of holes such that they may be telescoped in and out to align the holes and adjust the effective length thereof.
    Type: Grant
    Filed: April 11, 1988
    Date of Patent: July 11, 1989
    Inventor: George P. Mathis, II
  • Patent number: 4831688
    Abstract: A mechanism which prevents a door from closing by blocking the door hinge from closing.
    Type: Grant
    Filed: May 2, 1988
    Date of Patent: May 23, 1989
    Inventor: James M. Deininger
  • Patent number: 4792168
    Abstract: An adjustable safety block assembly is disclosed which can be used to traverse an opening for a sliding door in order to block it. The assembly consists of inner and outer tubular members which can be telescoped together. One of the tubular members has a series of axially extending rows of holes spaced at even intervals, and staggered around the radius of the two. The other tubular member has groups of evenly axially spaced circumferentially distributed holes radially arranged. The tubular members may be telescoped until the desired length is achieved, and then holes of the inner and outer tubular members aligned so that locking means can be inserted through the aligned holes to fix the tubular members in relative position, to form a rigid bar. Thus, the safety block is easily adjustable to accommodate any patio door widths, and may be disassembled for storage and travel.
    Type: Grant
    Filed: April 24, 1987
    Date of Patent: December 20, 1988
    Inventor: Robert Kardosh
  • Patent number: 4790582
    Abstract: A removable and concealable lock for sliding sash windows has two parts--a solid cylindrical bolt and an extractor pin. The extractor pin is an elongated pin with grasping means at one end and a perpendicular bend at the opposite end. The bolt has a longitudinal channel in at least one end with at least one radial channel leading into the inner end of the longitudinal channel. The other bolt end is either tapered or greatly bevelled for easy insertion into predrilled window channels. The window channels are drilled through the overlapping rails or stiles of the window sashes. The bolt is inserted into the channels to lock the window in either an open or closed position. To remove the lock, the extractor pin is inserted into the longitudinal channel until its bent end locks into a radial channel. The pin then pulls the bolt from the channel.
    Type: Grant
    Filed: October 2, 1986
    Date of Patent: December 13, 1988
    Inventor: Edward Keast
  • Patent number: 4788796
    Abstract: A removable sliding window assembly for use in pickup trucks and camper shells has a frame in which tracks are formed in which sliding panels are received. Retaining pin assemblies are used to removably secure the panels in the tracks. When the retaining pins are removed, the panels may be removed from the track assembly.
    Type: Grant
    Filed: August 19, 1987
    Date of Patent: December 6, 1988
    Inventor: Mark E. Matthews
  • Patent number: 4781042
    Abstract: Automobile child prevention locks are provided to prevent children from operating the door actuating lever and the window operating lever from the interior of the vehicle. The door actuating handle lock consists of two flat plates hinged together. A lock mechanism allows the plates to be locked together in parallel overlying relation. When placed over a conventional U-shaped door actuating lever, an elongated finger on one of the plates prevents the door lever from being moved. A window operating lever lock has a hollow barrel which is mounted in the door panel. A cylindrical locking member, which has an L-shaped overhanging arm for engagement with the window operating lever, is lockably received within the hollow barrel. By use of these hooks, both the doors and windows of an automobile may be secured from opening by children within the vehicle.
    Type: Grant
    Filed: October 2, 1987
    Date of Patent: November 1, 1988
    Inventor: Rick J. Stephens
  • Patent number: 4770451
    Abstract: Multiple embodiments of a security lock for hinged entry doors or the like are disclosed, each having a strike plate adapted for mounting on the door jamb with a lock element being selectively operable for locking the door and being opened inwardly. In one embodiment, the lock element is engaged with a slotted extension of the strike plate for locking the door and with an offset plate portion for storing the lock element in an unlocked position out of engagement with the door. In another embodiment, the lock element is connected to an offset portion of the plate by an elongated flexible element such as a chain. In yet another embodiment, the lock element is an elongated hook member which is rotatably attached to the plate and extends inwardly of the door in its closed position, the hook member being rotatable into either a locking position for engaging the door after it is opened a short distance from the jamb or an unlocked position.
    Type: Grant
    Filed: November 20, 1986
    Date of Patent: September 13, 1988
    Inventor: David W. Souza
  • Patent number: 4765664
    Abstract: This anchor lock is designed to prevent a door or cover of a doorway from being forced inward. Primarily, it consists of a sleeve anchorable in pavement in front of the door, and a bar with a tongue at its top end is received in the sleeve, and the tongue is received in a plate attached to the door. The bar is also provided with a projecting pin for preventing its removal from the sleeve when the device is in use, and a slot in the sleeve enables the pin to travel upward and outward of the sleeve, enabling storage of the bar when the device is not in use.
    Type: Grant
    Filed: April 8, 1987
    Date of Patent: August 23, 1988
    Inventor: Myron Siegel
  • Patent number: 4763363
    Abstract: An improved toilet locking apparatus of the type comprising a strap element having a clip attached at each end thereof for securing a toilet lid and seat in a closed position on a toilet bowl is provided. An improved first clip device is secured to a front or side portion of the internal spillway of a toilet bowl rim. A second improved clip device having a shape substantially similar to the first clip device but having a reduced dimension may removably engage a back or side portion of a toilet lid thereby allowing one to easily and efficiently lock or unlock the toilet lid by simply moving the second clip device outwardly. A notch is provided in a bottom portion of the first clip device so that water released from the toilet spillway rim may freely pass therethrough and to receive the small ceramic ball provided under the spillway rim of certain toilet bowls. Slots are provided in top portions of each clip device so that an elastic strap may be permanently attached therethrough.
    Type: Grant
    Filed: August 23, 1983
    Date of Patent: August 16, 1988
    Inventor: Albert A. Lallemand
  • Patent number: 4715629
    Abstract: A child proof lock which has two parts. The first part is of strap-like construction, is attachable to a surface at one end, has a shaped aperture at the other, and has an elastic portion between the two ends. The second part is also attachable to a surface and includes a rotatably mounted toggle. The toggle is shaped so as to be able to pass through the aperture in the first part only when it has been correctly rotationally oriented. In use the first and second part of the child proof lock are attached to opposite sides of a door opening in a relationship whereby the first part must be expanded to allow the toggle to pass through the aperture. To lock the device the toggle on the second part is correctly rotationally oriented, the first part is expanded and the aperture passed over the toggle. When the first part retracts an abutment on the first part rotates the toggle thus locking the device.
    Type: Grant
    Filed: December 12, 1985
    Date of Patent: December 29, 1987
    Inventor: Alan J. Robinson
  • Patent number: 4712816
    Abstract: An auxiliary door latch for children's safety which comprises a flexible tape-like member having openings in opposite end portions for detachably engaging projecting heads provided on the free end portion of a door and the adjacent jamb. The flexibility of the tape-like member permits reliable and facile accommodation for the particular locations of said heads, which latter may, if desired, be readily removed in periods of disuse.
    Type: Grant
    Filed: May 12, 1986
    Date of Patent: December 15, 1987
    Inventor: Theodore V. Mueller
  • Patent number: 4671014
    Abstract: A very secure entry door barricade system is obtained with a specially configured elongated bar which extends generally horizontally across the width of a door. A hasp assembly, which is very firmly anchored to the building structure, includes a pivotally movable hasp adapted to selectively engage a hook portion of the bar. At the hinge edge, the elongated bar is very securely anchored by a conventional hinge pin which passes through a vertical aperture in the bar and back into its hinge assembly. An alternative configuration for double doors employs an elongated bar on each door, the bar pair being generally in horizontal alignment with respective hook portions situated in close proximity to receive a ring over both hook portions. The ring, when in place, thereby serves to closely limit the extent to which either or both doors can be opened.
    Type: Grant
    Filed: October 24, 1986
    Date of Patent: June 9, 1987
    Assignees: Dawn J. Underwood, James H. Phillips
    Inventor: Larry H. Lack
  • Patent number: 4666194
    Abstract: A device for fastening the trunk lid or tailgate of an automobile, for example when carrying an oversize load, which prevents the trunk lid or tailgate from being shut properly, comprises a strap adjustable for length and having at one end an openable clasp, similar to those used on dog leads, to engage a striker of the trunk lid or tailgate lock and at the other end a triangular keeper element with cylindrical portions of different diameters.The triangular keeper can be rotated within a loop of the strap to bring any one of the cylindrical portions into line with the strap. The selected cylindrical portion being that appropriate to be received in and retained by the latching member of the lock.Instead of the openable clasp illustrated, that end of the strap may be fitted with a plate having a keyhole slot to engage a cantilever striker of the kind with an enlarged head at its free end.
    Type: Grant
    Filed: April 21, 1986
    Date of Patent: May 19, 1987
    Inventor: John C. Charman
  • Patent number: 4636136
    Abstract: An apparatus for automatically opening and closing a door of a vehicle body which is transferred by a conveyor or is stopped at a predetermined position in a manufacturing process. The apparatus accurately control the opened angle of the door with the guidance of the combination between an engagement member and an opening thereof.
    Type: Grant
    Filed: June 1, 1984
    Date of Patent: January 13, 1987
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Iwao Nomura, Takayuki Masuyama, Yasuo Tanigawa, Hirofumi Hasimoto
  • Patent number: 4634162
    Abstract: A portal lock is provided having an arm securable to a portable case and rotatably supporting a wedge member having four outwardly radiating legs. The legs are eccentric to and at substantially equal spacing about the axis of rotation of the wedge member.
    Type: Grant
    Filed: March 18, 1985
    Date of Patent: January 6, 1987
    Inventor: Dale O. Kimmel
  • Patent number: 4627651
    Abstract: A door safety device consists of cooperating strike plate and face plate portions corresponding respectively to the strike plate and face plate of a conventional door lock or passage set. These portions are provided with apertures which when installed at the location of the door bolt permit the passage of the door bolt therethrough; they are also provided with cooperating portions projecting into the room that with the door closed register with one another and provide registering passages for reception of a lock pin that joins them securely together. The two portions can replace the strike and face plates of an existing lock and utilize the existing recesses and screw holes so that installation is possible with only the use of a screwdriver. At least the face plate portion can be installed over the existing face plate instead of replacing it, but this usually is not preferred with the strike plate portion due to space and operating considerations.
    Type: Grant
    Filed: March 24, 1986
    Date of Patent: December 9, 1986
    Inventor: Robert H. Grimbly
  • Patent number: 4621846
    Abstract: A device that prevents the unauthorized removal of a retainer pin that is slideably disposed within a bore which is collectively defined by a plurality of bores formed in the doors or windows to be locked, or frames therefor, when the same are fully closed. The device is a flat, elongate member having a transverse bend formed therein so that the device provides an inclined wall portion that projects at an angular relation to a base portion thereof. The inclined wall is apertured to receive the retainer pin and the edges of the aperture frictionally engage the pin so that it can not be removed from the bore within which it is disposed in the absence of a transient deformation of the inclined wall which decreases the angle between the inclined wall portion and the base portion of the device, thereby causing the edges of the aperture to release the pin.
    Type: Grant
    Filed: October 1, 1984
    Date of Patent: November 11, 1986
    Inventor: Don Lefor
  • Patent number: 4605251
    Abstract: A U-shaped lock fits around the shank of the door knob assembly and the two legs of the lock are received by an extended strike plate in a locked condition. The door lock is retained around the shank by keeper means on at least one of the legs of the lock.
    Type: Grant
    Filed: July 23, 1984
    Date of Patent: August 12, 1986
    Inventor: John R. Finlay
  • Patent number: 4593946
    Abstract: A rigid elongate bracket is provided which has at one end a disc-shaped lug generally corresponding to the lug on the door frame which is designed to interact with the door latch on the door of a vehicle, and has at the other end a hook-shaped member adapted to grasp the lug on the door frame, whereby the bracket can be fitted to hold the door in a partially open position while bodywork is being performed on the vehicle. The bracket preferably has a telescoping feature whereby the door edge can be anchored at different distances from the door frame.
    Type: Grant
    Filed: July 15, 1983
    Date of Patent: June 10, 1986
    Inventor: John W. Rich
  • Patent number: 4575140
    Abstract: A door lock mechanism is provided for positioning on the inside of the door and preventing the opening of the door. The mechanism comprises a main plate which slips over the doorknob handle, and a modified strike plate having an aperture structurally arranged for receiving a portion of the main plate. A simplified method is provided for easily and effectively securing a door, since the modified strike plate may be permanently secured to the doorjamb while the main plate may be quickly and easily positioned for locking the door. The method and apparatus of the present invention is well adapted for both commercial and residential use, since its components do not materially detract from the aesthetic qualities of the door.
    Type: Grant
    Filed: February 28, 1983
    Date of Patent: March 11, 1986
    Inventor: Kenneth Dargis
  • Patent number: 4496177
    Abstract: The latch body comprises a rectangular head-plate to which is attached a perpendicular frame. A flexible U-shaped strip extending from the base member of the frame is joined to or integral with a latch arm, the free end of which is provided with a locking lug. Operation of the latch is performed by introduction of the frame and latch arm within a locking recess of the unit and snap-action engagement of the locking lug beneath a shoulder of the recess.
    Type: Grant
    Filed: June 25, 1982
    Date of Patent: January 29, 1985
    Assignee: Thomson-Brandt
    Inventor: Guy Pissot
  • Patent number: 4489968
    Abstract: A selectively removable or retractable doorstop for converting double-acting, double or single doors to a single-acting, single door, for permitting control over traffic into and out of public premises at desired times. The doorstop includes an intercept portion which can be selectively removably or retractably inserted into the path of a double-acting door thereby restricting it to opening in one direction only. Different embodiments of the doorstop are provided respectively for temporary or permanent mounting on or in a doorjamb, or on or in the stile of a temporarily fixed-in-place door, thus giving a selection of options for any specific situation.
    Type: Grant
    Filed: September 21, 1981
    Date of Patent: December 25, 1984
    Inventor: Thomas E. Easley
  • Patent number: 4469358
    Abstract: Security devices for a toilet bowl and refrigerator are disclosed which are designed for preventing small children from independently gaining access to the contents of the toilet bowl or the contents of a refrigerator. The toilet bowl security device (10) includes first and further suction cup members (46) and (54) fabricated from flexible air impervious material. One of such suction cup members has a face area less than the face area of the further suction cup member such that the adhesive forces of the face having the greater area are greater thereby enabling the installer to determine which surface the device adheres to at all times. These suction cup members are joined by a stem (38) and as necessary or desired may be integrally formed therewith. In the device (70) for securing a refrigerator door (72), means (86) are provided for selectively joining first and further suction cup members 78 and 82 which are secured on the cabinet portion of the refrigerator and the door (72) respectively.
    Type: Grant
    Filed: April 21, 1982
    Date of Patent: September 4, 1984
    Assignee: Terry E. Henley
    Inventor: Phillip G. Abbott
  • Patent number: 4469359
    Abstract: A door lock assembly comprising an anchor plate or other anchor means on the floor of a building spaced apart from a door with which the door lock assembly is to be used and in the direction which the door opens, and an elongated locking bar one end of which engages and is secured by the anchor plate or other anchor means, the other end of which abuts against the bottom edge of the door when in closed position to prevent it from being opened until the locking bar is removed from such position. The locking bar lies on the floor between the anchor means and the bottom edge of the closed door which makes it more difficult to dislodge by anyone trying to break in. The door may include a socket to receive the abutting end of the locking bar to keep it even more securely in place.
    Type: Grant
    Filed: December 27, 1982
    Date of Patent: September 4, 1984
    Inventor: Larry Westbrooks
  • Patent number: 4439758
    Abstract: A portable security device adapted to be removably mounted on a door frame adjacent the inside of an inwardly swinging door to prevent the opening of the door and actuate an alarm when forcible entry is attempted. A steel rod is embedded within a rigid housing and extends outwardly from an end wall of the housing. The rod is removably inserted into a complementary-shaped hole in the door frame. The housing has an angled wall extending downwardly toward the rod and forms an exterior angle of between 120.degree. and 165.degree. therebetween. The angled wall lies in abutting relationship with the inside surface of the door blocking the opening of the door. A battery-operated alarm is contained within the housing and has a control button that projects outwardly through a hole in the angled wall and engages the door for actuating an alarm switch. The angled wall may be covered with a sheet of resilient material with the switch button extending a short distance beyond the outer surface of the resilient sheet.
    Type: Grant
    Filed: November 2, 1981
    Date of Patent: March 27, 1984
    Inventor: Richard E. Cantley
  • Patent number: 4423897
    Abstract: A device for selectively preventing more than a desired opening of a metal frame and sash window having at least one sash mounted for relative sliding movement in overlapping relation to another sash to open and close the window. A metal keeper is mounted in the side rail of the upper window of a double-hung sash and a bolt or pin extends removably therefrom for intercepting and halting opening of the window, thus permitting the window to be opened slightly for ventilation but not far enough to allow unlawful entrance. A spring-biased finger detent, extending into the bolt or pin receiving opening of the keeper, engages a circumferential groove on the bolt or pin for inhibiting accidental removal from the keeper. In another form of the invention, the bolt is screwed into the keeper.
    Type: Grant
    Filed: September 15, 1980
    Date of Patent: January 3, 1984
    Inventor: D. Emerton Williams
  • Patent number: 4418553
    Abstract: In a locking device for use with a vehicle having a trunk compartment and a fuel tank filling outlet positioned adjacent and below a vertical lower wall of the trunk compartment, with the vehicle also having a closeable lid member which closes by engaging said trunk compartment lower wall, said device including a removeable cap closure member for the fuel tank inlet which tightens onto the fuel tank inlet by rotational movement and which has a slot in the exterior thereof, and a locking bar element having configured upper and lower portions, with the upper portion being adapted to fit over the top of the trunk compartment lower wall and engage the underside of the trunk lid, and with the lower portion having a lower terminus which is adapted to seat into the slot in said fuel tank filler outlet cap to lock thereby the cap in place and prevent its removal.
    Type: Grant
    Filed: September 9, 1980
    Date of Patent: December 6, 1983
    Inventor: Edward R. Applegate
  • Patent number: 4400027
    Abstract: The window lock includes in combination a cylindrical barrel suitable for recessed installation and a special key for insertion and removal of the barrel from a window sash. The cylindrical barrel is fabricated of suitable length to seat within a bore drilled entirely through the lower sash and a portion of the upper sash of a double hung type window. The bore is drilled of sufficient depth to recess entirely the barrel so that there are no interiorly projecting or otherwise exposed parts. The barrel is interiorly formed with a recessed socket and the special key is provided to engage the socket for barrel removal purposes when it is desired to open the window.
    Type: Grant
    Filed: February 2, 1981
    Date of Patent: August 23, 1983
    Inventor: Abraham S. Nahon
  • Patent number: 4389862
    Abstract: The prevalent lockrods type rear-end closures for overland cargo carrying vehicles are exceedingly vulnerable to determined thievery. The high security locking assembly of the present invention is highly deterrent to thievery and comprises a hasp including a pair of J-shaped members respectively removably engaged with the two closure lockrods and having the apertured staple of the primary J-hook member cooperatively protruding through a slot of the secondary J-hook member. The two cooperating J-hook members are securely joinable with a padlock having its U-shaped bar passing through the protruding staple, and hence, protectively shrouded by the cooperating J-shaped members. When the lateral spacing of the lockrods is relatively close, the locking assembly prevents closure play as additional deterrent to thievery. The locking assembly will also accommodate relatively distant spacing of the lockrods and even if the two closure doors include a rearwardly protruding upright rib.
    Type: Grant
    Filed: September 23, 1980
    Date of Patent: June 28, 1983
    Inventor: Thomas M. Hastings
  • Patent number: 4372592
    Abstract: This invention relates to a locking device, having a U-shaped cross-section, for use with bi-fold doors. The device is designed to be slidably mounted on the top edge of one panel of a bi-fold door in the open position. When the door is closed, the device is slid over the top edge of both panels, and a bolt portion is inserted in the space between the two panels. To open the door, the locking portion is simply removed from said space and the locking device is moved to the top edge of just one of the panels.
    Type: Grant
    Filed: December 24, 1980
    Date of Patent: February 8, 1983
    Inventor: Miki E. Beese
  • Patent number: 4372136
    Abstract: Lock-protecting hasp for trailer full swing rear doors having locking bars which secures to the bars of the rear doors and includes two mating members and a shackle lock whether the lock be key or combination. A protecting block against the lock on the female mating member protects the shackle of the lock from being cut or pried off the body of the lock, or between the shackle, the body and the lock-protecting hasp. Longitudinal opposing slots and a ribbed locking bar on the male mating member provide for adjustability between the two members for accepting door bars spaced any distance dependent upon the type of trailer. The lock-protecting hasp particularly lends itself to use on semi-trailers having full swing rear doors and the lock-protecting hasp accepts a lock of predetermined size.
    Type: Grant
    Filed: August 27, 1980
    Date of Patent: February 8, 1983
    Assignee: Transportation Security Inc.
    Inventor: Thorwald J. Mickelson
  • Patent number: 4350377
    Abstract: A lock device and method for securing first and second bodies, such as window sashes, which are mounted for relative sliding movement, in a fixed relative position are disclosed. Each of the bodies has a hole extending transversely to the direction of the sliding movement. The holes are arranged to be axially aligned when the bodies are in the fixed relative position. The lock includes an elongate bolt insertable into the holes when they are aligned to prevent relative sliding movement between the bodies. The lock further includes a handle and a device for releasably axially attaching the handle to the bolt so that the bolt may be inserted into and withdrawn from the holes when aligned and so that the handle may be released from the bolt after insertion into the holes.
    Type: Grant
    Filed: March 13, 1980
    Date of Patent: September 21, 1982
    Inventor: Thomas D. McCarthy
  • Patent number: 4334705
    Abstract: The improved door lock comprises, in combination, means for engaging a doorknob to releasably grip it and means secured to the doorknob-engaging means and adapted to releasably grip the leading edge of a doorjamb adjacent a doorknob gripped by the doorknob-engaging means. The retaining means prevents the doorknob and the door to which the doorknob is attached from being swung out and away from the lock. The lock is adapted to fit into the corner between the doorjamb and the door and to slide over that doorjamb down into contact and around the doorknob. When it is desired to remove the lock it is merely slid up and away from the doorknob. The lock requires no attachment to either the jamb or the door and can be made in a unitary integral form, preferably generally L-shaped in outline. The doorknob-engaging means can comprise a wall which extends out at right angles to the retaining means which may comprise a plate containing a vertical lip on its front end to engage the leading edge of the doorjamb.
    Type: Grant
    Filed: March 6, 1979
    Date of Patent: June 15, 1982
    Inventor: Joel D. Rumph
  • Patent number: 4322104
    Abstract: The door guard of the present invention utilizes an L-shaped bar which binds against the panic bar of the door and against the door frame to prevent the panic bar from being pulled down and thus opening the door. The L-shaped bar has a front and side leg. The front leg has attached to it an upper and lower tab which fits one on either side of the panic bar. The side leg binds against the door frame.
    Type: Grant
    Filed: July 14, 1980
    Date of Patent: March 30, 1982
    Assignee: Iowa State University Research Foundation, Inc.
    Inventors: Edward H. Matthews, Jr., William A. White, Jr.
  • Patent number: 4322103
    Abstract: A device is provided for use with a vehicle having a body and a door movable between an open and a closed position for rigidly but detachably holding the door in a predetermined open position. The vehicle door is of a conventional construction having a latch mechanism in the door which engages a cylindrical striker pin secured to the vehicle body when the door is in its closed position. The device comprises an elongated rod having a striker pin secured to and extending laterally outwardly from one end of the rod. A pair of elongated tabs are secured to the other end of the rod so that the tabs extend perpendicularly outwardly from the rod with respect to the axis of the rod. In addition, the tabs are spaced apart from each other by an amount sufficient to receive the vehicle striker pin therebetween.
    Type: Grant
    Filed: May 12, 1980
    Date of Patent: March 30, 1982
    Inventor: Terry R. Acton
  • Patent number: 4270782
    Abstract: An elongated latch body has an eyelet on one end, and an open ended clevis shape on the other end. A pair of cooperating, laterally extending, and partially overlapping linkages are pivotally mounted near the open end of the clevis part of the latch body and a U-shaped rocker arm, also mounted within the clevis part of the latch body, controls rotational movement of the linkages.
    Type: Grant
    Filed: September 4, 1979
    Date of Patent: June 2, 1981
    Assignee: The Boeing Company
    Inventor: Richard J. LaConte