Patents by Inventor Michael L. Cain

Michael L. Cain 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).

  • Exit delaying mechanism for panic exit door
    Patent number: 5412961
    Abstract: A mechanism for dogging a door latch assembly of a panic exit device having a retractible door latch biased to move outward from the door latch assembly, with inward movement of the door latch being activated by a push bar, includes a mechanism for holding a key cylinder positioned adjacent to the door latch assembly. A catch mechanism linked to the door latch is configured to move as the door latch is retracted, and a arm is pivotably mounted adjacent to the key cylinder holding mechanism. The arm is configured to retain the catch mechanism, with the door latch being prevented from outwardly moving with respect to the door latch assembly.
    Type: Grant
    Filed: June 1, 1993
    Date of Patent: May 9, 1995
    Assignee: Von Duprin, Inc.
    Inventors: Michael L. Cain, Marlin D. Austin
  • End cap for a door exit device push pad
    Patent number: D430786
    Type: Grant
    Filed: February 28, 2000
    Date of Patent: September 12, 2000
    Assignee: Von Duprin, Inc.
    Inventors: Chad A. Hickman, Michael L. Cain, Eric K. Arthur, Roger A. Vitt
  • Push pad
    Patent number: D433307
    Type: Grant
    Filed: February 28, 2000
    Date of Patent: November 7, 2000
    Assignee: Von Duprin, Inc.
    Inventors: Chad A. Hickman, Michael L. Cain, Eric K. Arthur, Roger A. Vitt