Patents by Inventor Allen B. Hepworth

Allen B. Hepworth 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).

  • Energy saving extra-low voltage dimmer and security lighting system wherein fixture control is local to the illuminated area
    Publication number: 20110062888
    Abstract: Prior applications disclosed power supply transmission voltage resulting in reduced line losses, with further energy conservation via luminous intensity control (dimming) of lamp(s) including LEDs.
    Type: Application
    Filed: April 9, 2010
    Publication date: March 17, 2011
    Inventors: Montgomery C. Bondy, Allen B. Hepworth, Brent McKee, Richard J. Bentley
  • Rotating plane keyboard
    Patent number: 5351066
    Abstract: An adjustable keyboard for electronic instruments having a pair of demi-boards which are extendable from a retracted, flat position to an extended, tetrahedal position wherein the distal side of one of the demi-boards is located closer to the other demi-board than the proximate side, the first and second demi-board planes intersect with the base plane to form an acute angle, the first and second demi-board planes intersect with each other at an apex intersecting line being in non-parallel alignment with the base plane and the first and second demi-board planes and the base plane intersect at an intersecting point in space on the distal side of the base member. A split spacebar may be actuated by movement about an axis parallel with the longitudinal axis of the demi-boards in either direction from a normal position and also on lateral movement along the said longitudinal axis.
    Type: Grant
    Filed: July 8, 1991
    Date of Patent: September 27, 1994
    Assignee: Ergologic Enterprises Inc.
    Inventors: Lance M. Rucker, Keith W. Hoyle, Allen B. Hepworth