Patents by Inventor William L. Downey

William L. Downey 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).

  • Door closer for the non-fire side of a fire-door safety installation
    Patent number: 5864920
    Abstract: A door control device for use on a non-fire side of a fire-door mounted in a door frame in a fire-door safety installation has a door closer assembly filled with a hydraulic damping fluid and attached to a non-fire side of the fire-door by at least one fastener; a door control arm pivotally connected to the door frame at a first end and to the door closer assembly at a second end; and the hydraulic damping fluid is one of a group of fire resistant hydraulic fluids.
    Type: Grant
    Filed: January 15, 1998
    Date of Patent: February 2, 1999
    Assignee: Schlage Lock Company
    Inventors: Rex H. Lasson, William L. Downey, Roderick A. L. Ross
  • Door closer for the non-fire side of a fire-door safety installation
    Patent number: 5709009
    Abstract: A door control device for use on a non-fire side of a fire-door mounted in a door frame in a fire-door safety installation has a door closer assembly filled with a hydraulic damping fluid and attached to a non-fire side of the fire-door by at least one fastener; a door control arm pivotally connected to the door frame at a first end and to the door closer assembly at a second end; and the hydraulic damping fluid is one of a group of fire resistant hydraulic fluids.
    Type: Grant
    Filed: July 25, 1996
    Date of Patent: January 20, 1998
    Assignee: Schlage Lock Company
    Inventors: Rex H. Lasson, William L. Downey, Roderick A. L. Ross
  • Door security track
    Patent number: 5088152
    Abstract: A tamper proof security door track and position means such as a door closer or door position indicator wherein the track is fully enclosed in the door closed position and protected by a slide closure in the open position to prevent debris from entering the track.
    Type: Grant
    Filed: September 8, 1989
    Date of Patent: February 18, 1992
    Assignee: Schlage Lock Company
    Inventor: William L. Downey
  • Door closer position monitor
    Patent number: 4916267
    Abstract: A door closer mechanism that controls the opening and closing swing of a door, in conjunction with an integral switch that electrically signals when the security of the closed door has been violated by partially opening the door. The device is especially important and useful in high security installations including detention facilities and features a secure field adjustment feature to accommodate door positioning and rattle.
    Type: Grant
    Filed: December 23, 1988
    Date of Patent: April 10, 1990
    Assignee: Schlage Lock Company
    Inventors: Thomas R. Lasier, William L. Downey
  • Door position indicator for a door closer
    Patent number: 4835905
    Abstract: A door position indicator for a door closer which senses the position of a door closer piston as a means of sensing door position. The door closer and hence the door position indicator may be recessed in the door jamb over the top edge of the door thereby providing additional security to the door position sensing device.
    Type: Grant
    Filed: February 29, 1988
    Date of Patent: June 6, 1989
    Assignee: Schlage Lock Company
    Inventors: Thomas R. Lasier, William L. Downey
  • Releasable hold-open device for a door closer
    Patent number: 4506407
    Abstract: A releasable hold-open device for a spring-impelled, regulated door closer has a door motion follower adapted to be releasably held in a door-open position. An actuator is arranged to retain or release the follower under control of a permanent magnet that can be overcome by an electromagnet.
    Type: Grant
    Filed: July 18, 1983
    Date of Patent: March 26, 1985
    Assignee: Schlage Lock Company
    Inventor: William L. Downey