Patents by Inventor Henry B. Hall

Henry B. Hall 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: 5144113
    Abstract: A deicer for affixment to a propeller blade or helicopter blade with an electrical resistance etched foil heater on a flat electrically non-conductive face of a wear resistant body, the body having tapered side and end edges extending beyond the foil heater. A reinforced non-conductive mesh is disposed within the body.
    Type: Grant
    Filed: November 30, 1988
    Date of Patent: September 1, 1992
    Assignee: Safeway Products, Inc.
    Inventors: Henry B. Hall, James A. Cook
  • Patent number: 4682010
    Abstract: An in-line heater for an aerosol delivery system has an elongated tubular electrically insulated plastic body having first and second ends coaxially aligned along the major axis of the tubular body. The first and second ends contain an aerosol inlet and outlet, respectively. The plastic body has an unrestricted flow passage therein from the first to the second end and a self supporting electrically conductive spiral mesh heating element loosely fills the flow passageway within the body. The mesh heating element has a very low mass so as to be almost instantaneously responsive and extends across the space between the side walls of the flow passage to maximize the surface area thereof exposed to the aerosol mixture flowing through the passage. First and second terminals are adjacent the first and second housing ends, respectively, and are connected to the ends of the spiral mesh heating elements by a pair of crimped connector plates.
    Type: Grant
    Filed: April 12, 1985
    Date of Patent: July 21, 1987
    Assignee: Safeway Products, Inc.
    Inventors: Donald F. Drapeau, Benjamin N. Moore, Henry B. Hall
  • Patent number: 4576798
    Abstract: A contact lens disinfecting unit in which the lenses are immersed in a saline solution and heated to a predetermined minimum disinfecting temperature which is maintained for a predetermined period of time. The unit has a heating system which includes a PTC thermistor as a heating element sandwiched between metal heat distribution plates, and this heating system interacts with a manually resettable thermostat to control operation of the unit.
    Type: Grant
    Filed: June 21, 1983
    Date of Patent: March 18, 1986
    Assignee: Safeway Products, Inc.
    Inventors: Henry B. Hall, Peter B. Hewes, Benjamin N. Moore, Rosario Sanzaro