Filter cover for powered air purifying respirator

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Description

FIG. 1 is a front perspective view showing the new design for a filter cover for powered air purifying respirator;

FIG. 2 is a front view thereof;

FIG. 3 is a back view thereof;

FIG. 4 is a top view thereof;

FIG. 5 is a bottom view thereof;

FIG. 6 is an enlarged left side view thereof; and,

FIG. 7 is an enlarged right side view thereof.

The broken lines are included for the purpose of illustrating structure and form no part of the claimed design. The shading is provided to illustrate contour only and is not an indication of surface texture.

Claims

The ornamental design for a filter cover for powered air purifying respirator, as shown and described.

Referenced Cited
U.S. Patent Documents
4899740 February 13, 1990 Napolitano
D464725 October 22, 2002 Petherbridge et al.
D479524 September 9, 2003 Nara
D585131 January 20, 2009 Trevor-Wilson et al.
D632375 February 8, 2011 Curran
D646379 October 4, 2011 Huh
D654070 February 14, 2012 Silva et al.
20090314295 December 24, 2009 Hatmaker
20110126713 June 2, 2011 Legare
20110146682 June 23, 2011 Patil et al.
Other references
  • Miller PAPR webpage obtained from internet on Feb. 20, 2012 http://www.millerwelds.com/products/welding—protection/filtration/papr/.
Patent History
Patent number: D690413
Type: Grant
Filed: Feb 15, 2012
Date of Patent: Sep 24, 2013
Assignee: 3M Innovative Properties Company (St. Paul, MN)
Inventors: Nathan A. Abel (Minneapolis, MN), Gary E. Dwyer (Mallorytown), John M. Pilgrim (Woodbury, MN), James E. Steffen (Woodbury, MN)
Primary Examiner: Ian Simmons
Assistant Examiner: Richelle Shelton
Application Number: 29/413,408
Classifications
Current U.S. Class: Respirator, Vaporizer, Or Inhalation Tube (4) (D24/110)