Shut-off valve for specialty gases
Description
FIG. 1 is a perspective view of a shut-off valve for specialty gases showing my new design;
FIG. 2 is a bottom plan view thereof;
FIG. 3 is a right side elevational view thereof;
FIG. 4 is a left side elevational view thereof;
FIG. 5 is a top plan view thereof;
FIG. 6 is a rear elevational view thereof; and
FIG. 7 is a front elevational view thereof.
Referenced Cited
Patent History
Patent number: D304070
Type: Grant
Filed: Mar 17, 1986
Date of Patent: Oct 17, 1989
Inventor: Richard E. Hughes (Hermosa Beach, CA)
Primary Examiner: James R. Largen
Law Firm: Cislo & Thomas
Application Number: 6/844,766
Type: Grant
Filed: Mar 17, 1986
Date of Patent: Oct 17, 1989
Inventor: Richard E. Hughes (Hermosa Beach, CA)
Primary Examiner: James R. Largen
Law Firm: Cislo & Thomas
Application Number: 6/844,766
Classifications