Patents by Inventor Russell H. Ross

Russell H. Ross 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: 7536885
    Abstract: A door exit device, security system, and method for implementing a delayed egress operating mode and an authorized access operating mode to control access through a door. In one embodiment, the exit device includes an egress enable mechanism including a latch retraction assembly operatively coupled between a push pad and a door latch. The latch retraction assembly retracts the door latch responsive to manual actuation of the push pad. The exit device further includes a delayed egress device having a latch retraction lock that is operatively coupled to the latch retraction assembly to prevent the latch retraction assembly from retracting the door latch coincident with an attempted manual actuation of the push pad. The exit device further includes an access enable device operatively coupled to actuate the latch retraction assembly in response to an authorized access signal.
    Type: Grant
    Filed: February 17, 2006
    Date of Patent: May 26, 2009
    Assignee: Detex Corporation
    Inventors: Russell H. Ross, Paul J. Haeck, Timothy C. Maleck