Patents by Inventor Dale R. Booher

Dale R. Booher 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).

  • Thermally responsive damper assembly having interfitting parts and method
    Patent number: 4587706
    Abstract: A thermally responsive damper assembly for mounting into a duct which is to be regulated by the damper assembly comprises a damper plate having oppositely disposed notch portions and arm portions one piece with said damper plate projecting outwardly in said notch portions and thermally responsive convoluted coil elements having convolutions surrounding said arm portions, bracket means affixed to the outermost convolution of each of said coil elements for attachment to said duct, and each of said coil elements having innermost convolutions keyed for attachment in only one orientation to an arm projecting outwardly in a notch portion of said damper plate.
    Type: Grant
    Filed: February 27, 1985
    Date of Patent: May 13, 1986
    Assignee: Energy Vent, Inc.
    Inventors: John Prikkel, III, Dale R. Booher
  • Thermal damper for rectangular flue
    Patent number: 4361272
    Abstract: A thermally responsive damper for operation in a rectangular ventilation duct.
    Type: Grant
    Filed: April 6, 1981
    Date of Patent: November 30, 1982
    Assignee: Energy Vent, Inc.
    Inventors: John Prikkel, III, Dale R. Booher, Jeffrey R. Killin
  • Damper unit
    Patent number: D271615
    Type: Grant
    Filed: April 6, 1981
    Date of Patent: November 29, 1983
    Assignee: Energy Vent, Inc.
    Inventors: John Prikkel, III, Dale R. Booher, Jeffrey R. Killin
  • Light unit for a fireman's helmet
    Patent number: D612524
    Type: Grant
    Filed: April 20, 2009
    Date of Patent: March 23, 2010
    Inventor: Dale R. Booher