Patents by Inventor Tom Holden

Tom Holden 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).

  • Electric immersion heater mounting flange
    Patent number: 4394562
    Abstract: An electric immersion heater for use in conjunction with tanks made by different manufacturers. The tanks are typically cylindrical and include an annular mounting flange at the upper open end provided with a specific arrangement of mounting apertures receiving fasteners connecting the heater mounting flange to the tank. Tank mounting flanges of different manufacturers use different number of fasteners and this presents a problem in that, unless an adaptor of some kind is used, an immersion heater must be provided with a special flange with mounting apertures matching the tank apertures for the fasteners.The immersion heater is provided with a mounting flange having an arrangement of mounting apertures which permits the heater to be used with tanks with mounting flanges having different mounting aperture arrangements without the necessity of adaptors or special flange arrangements.
    Type: Grant
    Filed: June 11, 1981
    Date of Patent: July 19, 1983
    Assignee: Industrial Engineering and Equipment Incorporated
    Inventors: Fred Epstein, Tom Holden
  • Motor vehicle
    Patent number: D823168
    Type: Grant
    Filed: May 24, 2017
    Date of Patent: July 17, 2018
    Assignee: VOLKSWAGEN AKTIENGESELLSCHAFT
    Inventors: Klaus Bischoff, Malte Hammerbeck, Frank Josef Brüse, Björn Hackbarth, David Schriever, Tom Holden