Patents Examined by Brain W. Brown
  • Heater element for blow dryers, paint strippers and the like
    Patent number: 4667086
    Abstract: A particularly efficient yet inexpensive and simple heat element for such appliances as blow dryers, paint strippers, heat guns, and so forth, consists essentially of a tightly crimped corrugated wire ribbon supported on a form in such a manner that its corrugations are generally perpendicular to the surface of the form. The resulting structure, which has an end-on appearance like that of a finned tube, efficiently radiates heat to a mass of flowing gas. A particularly preferred embodiment results when the form is intersecting mica plates.
    Type: Grant
    Filed: October 21, 1985
    Date of Patent: May 19, 1987
    Assignee: North American Philips Corp.
    Inventor: Richard A. Keefe