Patents by Inventor Brent Kiernan

Brent Kiernan 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).

  • Electric strike field-selectable fail-safe/fail-secure mechanism
    Patent number: 6595563
    Abstract: An electrically controlled strike including a strike frame; a keeper carried by the strike frame for movement when released allowing door opening and adapted to receive and resist door opening prior to keeper movement, an electrically powered solenoid carried by the frame, and a lock arm assembly operatively connected between the solenoid and the keeper for causing the keeper to assume a fail-safe condition allowing keeper movement when the solenoid is unpowered or alternatively a fail-secure condition preventing keeper movement when the solenoid is unpowered, the two conditions being selected by re-positioning an actuator.
    Type: Grant
    Filed: September 13, 2001
    Date of Patent: July 22, 2003
    Assignee: Von Duprin, Inc.
    Inventor: Brent Kiernan
  • Electric strike field-selectable fail-safe/fail-secure machanism
    Publication number: 20020029526
    Abstract: An electrically controlled strike including a strike frame; a keeper carried by said strike frame for movement when released allowing door opening and adapted to receive and resist door opening prior to keeper movement; an electrically powered solenoid carried by said frame; means operatively connected between the solenoid and the keeper for causing the keeper to assume a fail-safe condition allowing keeper movement when said solenoid is unpowered or alternatively a fail-secure condition preventing keeper movement when said solenoid is unpowered; the two conditions being selected by repositioning an actuator.
    Type: Application
    Filed: September 13, 2001
    Publication date: March 14, 2002
    Applicant: Von Duprin, Inc
    Inventor: Brent Kiernan