Patents by Inventor Martin John Playford

Martin John Playford 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).

  • Lock system for movable closure element
    Patent number: 7234329
    Abstract: A lock system for releasably maintaining a movable closure element in one of two different positions. The lock system has a latching assembly with a first state and a second, maintaining state. An actuating system has a first actuating assembly that is changeable from a first state into a second state by movement of a part of the first actuating assembly in an operating path. A blocking assembly in a first state allows the first actuating assembly to be changed from the first state into the second state. The blocking assembly in a second state blocks the operating path to prevent the part of the first actuating assembly from moving so as to allow the first actuating assembly from being changed from the first state into the second state.
    Type: Grant
    Filed: March 29, 2004
    Date of Patent: June 26, 2007
    Assignee: Tri/Mark Corporation
    Inventors: Ricci L. Mazolf, Martin John Playford