Solar powered ventilating fan for welding helmets

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Description

FIG. 1 is a front elevational view of a solar powered ventilating fan for welding helmets showing my new design;

FIG. 2 is a rear elevational view thereof;

FIG. 3 is a left side elevational view thereof;

FIG. 4 is a right side elevational view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom plan view thereof;

FIG. 7 is a top perspective view thereof, and

FIG. 8 is a bottom perspective view thereof.

Referenced Cited
U.S. Patent Documents
D252767 August 28, 1979 Odell et al.
3735423 May 1973 Droz
3881198 May 1975 Waters
4172294 October 30, 1979 Harris
4744106 May 17, 1988 Wang
Patent History
Patent number: D308416
Type: Grant
Filed: Aug 21, 1987
Date of Patent: Jun 5, 1990
Inventor: Stuart R. Brumbach (New Cumberland, PA)
Primary Examiner: Susan J. Lucas
Assistant Examiner: M. H. Tung
Attorney: Jerry T. Kearns
Application Number: 7/87,901