Red helmet respiratory protection device

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Description

FIG. 1 is a perspective view of a red helmet respiratory protection device showing our new design, the parallel lines shown in all views representing the color red;

FIG. 2 is a front view thereof;

FIG. 3 is a top elevational view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a rear elevational view; and,

FIG. 6 is a side elevational view thereof, the opposite side being a mirror image.

The vertical line shading shown in FIGS. 1-3, 5, and 6 represents the color red.

The portion of the design that is shown in phantom lines in all views is for illustrative purposes only and forms no part of the claimed design.

Claims

The ornamental design for a red helmet respiratory protection device, as shown and described.

Referenced Cited
U.S. Patent Documents
D277425 February 5, 1985 Higginson
D291127 July 28, 1987 Bohjort
D370308 May 28, 1996 Nilsson
D416649 November 16, 1999 Burns et al.
6016805 January 25, 2000 Burns et al.
D420770 February 15, 2000 Burns
D420771 February 15, 2000 Burns
D421820 March 21, 2000 Johnson
6035451 March 14, 2000 Burns et al.
6081931 July 4, 2000 Burns et al.
6102033 August 15, 2000 Baribeau et al.
D436234 January 9, 2001 Sáez et al.
6279573 August 28, 2001 Johnson et al.
Other references
  • Lab Safety Supply Brochure, p. 16. “Polyethylene Hard Hats ” (Bottom right hand corner of page).*
  • Product Information: “Pureflo Powered Respirators,” Helmet Integrated Systems Ltd., 13 pages.
  • Product information: “Cobra Powered Helmet Respirators,” MSA.
  • Product Information: “AH29 Air Supplied Airstream,” Airstream Anti Dust Helmet, Racal.
  • Product Information: “The Dustmaster System,” Arco.
  • Product Information: “Breathe Easy Plus,” 1 BE1+Helmet System, Racal.
  • Product Information: Helmet product literature, Kasco, 7 pages.
Patent History
Patent number: D469580
Type: Grant
Filed: Mar 10, 1998
Date of Patent: Jan 28, 2003
Assignee: 3M Innovative Properties Company (St. Paul, MN)
Inventors: David R. Schlaefer (Wing on Life Garden), M. Antonia Sáez (Madrid)
Primary Examiner: Ruth McInroy
Attorney, Agent or Law Firms: James A. Rogers, Karl G. Hanson
Application Number: 29/084,807
Classifications
Current U.S. Class: Cranial (D29/102)
International Classification: 2902;