Window for welder's helmet

Description

FIG. 1 is a view in perspective of my new design for a window for welder's helmet shown with its upper element down ;

FIG. 2 is a top view thereof;

FIG. 3 is a view in front elevation thereof with the upper element raised;

FIG. 4 is a side view thereof;

FIG. 5 is a bottom view thereof;

FIG. 6 is a rear view of the window shown upsidedown; and

FIG. 7 is a cross-sectional view taken on line 7--7 of FIG. 6.

Referenced Cited
U.S. Patent Documents
1861797 June 1932 Holt
2352007 June 1944 Rickert
2618781 November 1952 Beauverger
Patent History
Patent number: D250856
Type: Grant
Filed: May 6, 1977
Date of Patent: Jan 23, 1979
Inventor: Carl J. Siebert (Santa Ana, CA)
Primary Examiner: Melvin B. Feifer
Attorney: Harvey C. Nienow
Application Number: 5/794,389
Classifications
Current U.S. Class: D/2232
International Classification: D0203;