Welding mask

- Optrel AG
Description

FIG. 1 is a front perspective view of a welding mask showing our new design;

FIG. 2 is a side elevational view thereof, the opposite side view being a mirror image of that shown;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is a top plan view thereof; and

FIG. 7 is a rear perspective view thereof.

Referenced Cited
U.S. Patent Documents
2644159 July 1953 Jacobs
4101980 July 25, 1978 Stepan et al.
4581775 April 15, 1986 Nava
4863244 September 5, 1989 Fuerthbauer et al.
Patent History
Patent number: D310276
Type: Grant
Filed: Jul 21, 1988
Date of Patent: Aug 28, 1990
Assignee: Optrel AG (Wattwil)
Inventors: Rupert Fuerthbauer (Lichtensteig), Hans Huesler (Bronschhofen)
Primary Examiner: Wallace R. Burke
Assistant Examiner: Kay H. Chin
Law Firm: Tarolli, Sundheim & Covell
Application Number: 7/222,222
Classifications
Current U.S. Class: D29/9; D29/8