Top portion of a welding helmet

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Description

FIG. 1 is a front perspective view of a top portion of a welding helmet showing our new design;

FIG. 2 is a front view thereof;

FIG. 3 is a left side view, the right side being a mirror image thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is a top view thereof; and,

FIG. 6 is a bottom view thereof.

The details shown in broken lines form no part of the claimed design.

Claims

The ornamental design for a top portion of a welding helmet, as shown and described.

Referenced Cited
U.S. Patent Documents
3806951 April 1974 Halteman
3825952 July 1974 Pershing et al.
4136688 January 30, 1979 Gorman
4280491 July 28, 1981 Berg et al.
4462399 July 31, 1984 Braun
4965887 October 30, 1990 Paoluccio et al.
D320869 October 15, 1991 Asbury et al.
5054479 October 8, 1991 Yelland et al.
5104430 April 14, 1992 Her-Mou
5125402 June 30, 1992 Greenough
5533500 July 9, 1996 Her-Mou
5575278 November 19, 1996 Bonhomme et al.
D393933 April 28, 1998 Huh
D394732 May 26, 1998 Huh
D398421 September 15, 1998 Crafoord et al.
6014971 January 18, 2000 Danisch et al.
6016805 January 25, 2000 Burns et al.
D431328 September 26, 2000 Tanner
6250299 June 26, 2001 Danisch et al.
D446887 August 21, 2001 Young
D482502 November 18, 2003 Huh
D482503 November 18, 2003 Huh
Foreign Patent Documents
1061822 April 2003 EP
WO 99/26502 June 1999 WO
Other references
  • Product literature for Racal Health & Safety Powererd Respirators.
  • Picture of 9000 Speedglas by 3M.
  • Picture of Welding Headtop Breathe Easy™ 17 by 3M.
  • Picture of Welding Shield by Euromaski.
  • Picture of Satellite Shield by Optrel.
  • Picture of Welding Shield, Air Visor K Series, by Willson.
  • JPO Design Divsiion Prior Art Ref. No. HH 03033371, Hornell Welding Helmet with side mirrors.
Patent History
Patent number: D518923
Type: Grant
Filed: Nov 12, 2004
Date of Patent: Apr 11, 2006
Assignee: 3M Innovative Properties Company (St. Paul, MN)
Inventors: Desmond T. Curran (Durham), Peter D. Lee (Hartlepool), Daniel Martin (Whalton)
Primary Examiner: Ruth McInroy
Attorney: Karl G Hanson
Application Number: 29/217,107
Classifications
Current U.S. Class: Element Or Attachment (D29/122)