Fan for anti-dust helmet
Description
FIG. 1 is a perspective view taken from the top, front, and one side of a fan for an anti-dust helmet showing our new design;
FIG. 2 is a perspective view taken from the bottom, rear, and side opposite that in FIG. 1;
FIG. 3 is an elevational view taken from the side shown in FIG. 1;
FIG. 4 is a bottom plan view thereof; and
FIG. 5 is a top plan view thereof.
Referenced Cited
U.S. Patent Documents
D214376 | June 1969 | Sullivan |
D231615 | May 1974 | Nygard et al. |
3649964 | March 1972 | Schoolz et al. |
3963021 | June 15, 1976 | Bancroft |
Patent History
Patent number: D252767
Type: Grant
Filed: Jan 7, 1977
Date of Patent: Aug 28, 1979
Inventors: Raymond Odell (Potters Bar, Herts), Brian A. Lowe (Cheshunt, Herts)
Primary Examiner: James R. Largen
Attorney: Lawrence E. Laubscher
Application Number: 5/757,609
Type: Grant
Filed: Jan 7, 1977
Date of Patent: Aug 28, 1979
Inventors: Raymond Odell (Potters Bar, Herts), Brian A. Lowe (Cheshunt, Herts)
Primary Examiner: James R. Largen
Attorney: Lawrence E. Laubscher
Application Number: 5/757,609
Classifications
Current U.S. Class:
D23/155;
D29/99
International Classification: D2304;
International Classification: D2304;