Patents by Inventor Antony Howell

Antony Howell 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).

  • Magnetically operated hinge switch
    Patent number: 6894595
    Abstract: A switch has a unitary plastic body that can be formed by injection moulding or extrusion. The body has a base that holds a magnetic field sensor. The base is fastened to a support structure by a plurality of fasteners. The base is connected to an arm by an elastic U-shaped portion of the plastic body that acts as both a hinge and a biasing member. The arm positions an activation magnet over the base and the sensor. The arm does not block access to fasteners that mount the switch to the support structure.
    Type: Grant
    Filed: July 14, 2003
    Date of Patent: May 17, 2005
    Assignee: Key Safety Systems, Inc.
    Inventor: Antony Howell
  • Magnetically operated hinge switch
    Publication number: 20040217835
    Abstract: A switch has a unitary plastic body that can be formed by injection moulding or extrusion. The body has a base that holds a magnetic field sensor. The base is fastened to a support structure by a plurality of fasteners. The base is connected to an arm by an elastic U-shaped portion of the plastic body that acts as both a hinge and a biasing member. The arm positions an activation magnet over the base and the sensor. The arm does not block access to fasteners that mount the switch to the support structure.
    Type: Application
    Filed: July 14, 2003
    Publication date: November 4, 2004
    Inventor: Antony Howell