Filter to be attached around user's waist for purifying air in a supplied air breathing system for use in otherwise hazardous environments
Description
FIG. 1 is a front elevation view of a filter to be attached around user's waist for purifying air in a supplied air breathing system for use in otherwise hazardous environment showing my new design;
FIG. 2 is a rear elevation view thereof;
FIG. 3 is a right side elevation view thereof;
FIG. 4 is a left side elevation view thereof;
FIG. 5 is a top plan view thereof; and,
FIG. 6 is a bottom plan view thereof.
Referenced Cited
U.S. Patent Documents
Foreign Patent Documents
D212064 | August 1968 | Campbell et al. |
1176711 | March 1916 | Gibbs |
2400180 | May 1946 | Venable |
4403587 | September 13, 1983 | Mizuno et al. |
4446869 | May 8, 1984 | Fnodle |
4506667 | March 26, 1985 | Ansite |
5038768 | August 13, 1991 | McGoff et al. |
149445 | December 1936 | ATX |
331364 | January 1921 | DE2 |
385500 | December 1932 | GBX |
Patent History
Patent number: D330587
Type: Grant
Filed: Oct 29, 1990
Date of Patent: Oct 27, 1992
Inventor: Larry E. Seeley (Port Richey, FL)
Primary Examiner: Wallace R. Burke
Assistant Examiner: Lisa Lichtenstein
Law Firm: Nixon & Vanderhye
Application Number: 7/604,909
Type: Grant
Filed: Oct 29, 1990
Date of Patent: Oct 27, 1992
Inventor: Larry E. Seeley (Port Richey, FL)
Primary Examiner: Wallace R. Burke
Assistant Examiner: Lisa Lichtenstein
Law Firm: Nixon & Vanderhye
Application Number: 7/604,909
Classifications