Patents by Inventor Blair E. Johns

Blair E. Johns has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 5865484
    Abstract: A door locking device is provided for positionally constraining an outwardly opening door against a stop of a cooperating door frame. The door locking device includes a door engaging member attached to the free-end of the door (i.e., the unhinged-end of the door), a threaded shaft having a first end pivotably mounted to the door engaging member and a second end opposite the first end for manual pivotal movement between an unlocked position (i.e., a position wherein the threaded shaft forms an acute angle with respect to the door) and an locked position (i.e., a position wherein the threaded shaft forms an obtuse angle with respect to the door), a wedge member slidably mounted on the threaded shaft, and a retaining nut disposed on the threaded shaft for axial movement thereon.
    Type: Grant
    Filed: September 23, 1996
    Date of Patent: February 2, 1999
    Inventor: Blair E. Johns
  • Patent number: 4405165
    Abstract: A device for demountable temporary locking of a door is configured for use in locking inwardly and outwardly opening doors from either or both the inside and the outside. The device includes a door engaging member having a collar plate removably mounted thereon for lockably mounting the door engaging member on the door, and having a slidably movable door jamb engaging member which is lockable in its door jamb engaging position.
    Type: Grant
    Filed: March 23, 1981
    Date of Patent: September 20, 1983
    Inventor: Blair E. Johns
  • Patent number: D442465
    Type: Grant
    Filed: April 25, 2000
    Date of Patent: May 22, 2001
    Inventor: Blair E. Johns
  • Patent number: D443497
    Type: Grant
    Filed: April 25, 2000
    Date of Patent: June 12, 2001
    Inventor: Blair E. Johns
  • Patent number: D452134
    Type: Grant
    Filed: April 25, 2000
    Date of Patent: December 18, 2001
    Inventor: Blair E. Johns
  • Patent number: D317111
    Type: Grant
    Filed: May 29, 1990
    Date of Patent: May 28, 1991
    Inventor: Blair E. Johns
  • Patent number: D319964
    Type: Grant
    Filed: September 27, 1990
    Date of Patent: September 17, 1991
    Assignee: Modern Manufacturing
    Inventor: Blair E. Johns