Door Spanning Bolt Patents (Class 70/DIG64)
  • Patent number: 5765411
    Abstract: A security bar that can be retrofitted onto a gate used in a typical fence construction to prevent unauthorized tampering with or opening of the gate. The device includes a rigid locking bar that is firmly mounted to the gate, a T-shaped strike plate, and a key-actuated latchbolt mechanism mounted within the inside of the rigid locking bar so that the latchbolt and strike plate cannot be accessed for tampering. The strike plate is mounted to a conventional fence post with fasteners that are not accessible when the gate is closed. Using the present device, which can be retrofitted to any type of outdoor gate, a positive locking action insures that the gate is locked at all times and cannot be jimmied or pulled upward to a position that would allow it to be opened. The locking mechanism allows access from either side of the gate for actuation.
    Type: Grant
    Filed: January 22, 1996
    Date of Patent: June 16, 1998
    Inventor: William Rowan
  • Patent number: 5447046
    Abstract: A security bar 14 for securing a door 2 hinged at one side of a door 2, the security bar 14 being hinged to the door surround 4 at the same side as the door 2 is hinged thereto and extending across the door surround 4 so as to be lockable with a locking device 18. The bar 14 is of freely adjustable length, and has its lockable end fixed relative to the door 2. Thus, the door 2 and the bar 14 pivot together about their respective displaced hinges by virtue of the varying length of the bar 14. The locking device is in the form of a key operated lock, the key of which is long enough to pass through the thickness of the door and into the lock.
    Type: Grant
    Filed: August 20, 1993
    Date of Patent: September 5, 1995
    Assignee: SPS (Holdings) Limited
    Inventor: Alexander M. Duffus
  • Patent number: 4823570
    Abstract: A locking mechanism to secure a coin operated vending machine includes an elongate locking bar insertable into a housing of the vending machine to secure closed a door hingedly mounted to the housing. A pair of metal loops integral with the door, and a pair of cover plates integral with the housing, are aligned to simultaneously contain the locking bar when the door is closed. A key-operated lock cylinder, mounted in recessed fashion inside the housing, supports a latch for pivotal movement toward and away from a latching position, wherein the latch enters a slot formed in the locking bar to keep the locking bar in its locking position. A reinforcing plate, with a keyway and a larger opening to permit insertion of the locking bar, protects the locking mechanism against tampering to discourage unauthorized entry into the vending machine.
    Type: Grant
    Filed: July 1, 1987
    Date of Patent: April 25, 1989
    Assignee: Air-Vend, Inc.
    Inventor: Richard D. Jurek
  • Patent number: 4819461
    Abstract: A locking device to secure the rear door and tailgate of a truck equipped with a canopy and a rear bumper comprising an elongated member having a loop at the upper end for securing the handle apparatus of a truck canopy and a lower member with circular orifices that extends vertically through an orifice in the bumper. A locking means is accomplished by the use of a padlock in conjunction with the circular orifices in the lower member of the locking device.
    Type: Grant
    Filed: June 16, 1988
    Date of Patent: April 11, 1989
    Inventor: M. Nicholas Pearson
  • Patent number: 4801172
    Abstract: A closure assembly for aerodynamically designed automotive vehicles having body sections with door or displaceable panel apertures formed in generally curved exterior walls and multipart aperture closures such as combinations of solid door panels and windows as well as roof panels which are slidably mounted on the vehicle body section and selectively and rotatably movable within the curved exterior vehicle body wall about the circumference of arcs formed by sections through the exterior wall of the vehicle body between closed and at least partially open positions. Each of the closure parts have a dimension in the direction of rotational movement less than the full dimension of the body aperture so as to be cooperatively capable of filling the body aperture when fully and rotatably extended to a closed position and a unitary reinforcing member on the closure and extending across the aperture to reinforce the body section.
    Type: Grant
    Filed: May 7, 1987
    Date of Patent: January 31, 1989
    Inventor: John A. Townsend
  • Patent number: 4669767
    Abstract: In association with a conventional truck box, trailer or enclosure having a rear door communicating with the sides, top and bottom of the enclosure, a hollow holding sleeve is secured to the inside of the door with a securing plate fastened to one side of the enclosure and a locking plate to the other side. The plates include apertures which are aligned with the hollow holding sleeve and the locking plate communicates with the exterior of the enclosure. A locking bar extends through the aperture of the locking plate and the hollow holding sleeve and into the aperture of the securing plate. A locking device is mounted onto the locking plate to securely hold the locking bar in place. When the locking bar is in place, movement of the door is prohibited and the door can not be opened.
    Type: Grant
    Filed: March 13, 1986
    Date of Patent: June 2, 1987
    Inventor: Paul Leto
  • Patent number: 4262503
    Abstract: A security device for preventing the unauthorized opening of swinging doors. The device has two members, each of which includes two parallel tubes and a rectangular metal plate or web. Each pair of tubes is welded to the respective opposite side edges of its metal plate, and the device is adapted to slide along the floor beneath a door when the door is opened with the tubes of each pair upon opposite sides of the door. The tubes of one member are smaller than those of the other, and the pair of smaller tubes extend beyond their plate toward the other member, and are inserted into the respective larger tubes to a nested position. The overall length of the device is then such that the door can be closed. The members are then moved relative to each other from the nested position, i.e., longitudinally of the pipes so as to span the width of the door. Each pair of pipes has extensions beyond the plate which are then positioned upon opposite sides of the door frames.
    Type: Grant
    Filed: December 20, 1978
    Date of Patent: April 21, 1981
    Inventor: James F. Kuebler