Battery pack for powered air purifying respirator (PAPR)

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Description

FIG. 1 is a front perspective view showing the new design for a battery pack for powered air purifying respirator (PAPR) 3;

FIG. 2 is a front view thereof;

FIG. 3 is a back view thereof; 3

FIG. 4 is a top view thereof;

FIG. 5 is a bottom view thereof;

FIG. 6 is a left view thereof; and,

FIG. 7 is a right view thereof.

The broken lines in the drawing depict environmental subject matter only and form no part of the claimed design.

Claims

The ornamental design for a battery pack for powered air purifying respirator (PAPR), as shown and described.

Referenced Cited
U.S. Patent Documents
4899740 February 13, 1990 Napolitano
5671996 September 30, 1997 Bos et al.
5736837 April 7, 1998 Noda
D413300 August 31, 1999 Igarashi
D481007 October 21, 2003 Takahashi
D493131 July 20, 2004 Lawlor et al.
7012727 March 14, 2006 Hutzel et al.
D543955 June 5, 2007 Hayes et al.
D600640 September 22, 2009 Stein et al.
D611408 March 9, 2010 Ferber et al.
D632375 February 8, 2011 Curran et al.
D642979 August 9, 2011 Chun et al.
D646379 October 4, 2011 Huh
D662470 June 26, 2012 Smith et al.
D671949 December 4, 2012 Jeon et al.
D672715 December 18, 2012 Brunner et al.
D678192 March 19, 2013 Serota
20090314295 December 24, 2009 Hatmaker
20110126713 June 2, 2011 Legare
Patent History
Patent number: D710304
Type: Grant
Filed: Feb 15, 2012
Date of Patent: Aug 5, 2014
Assignee: 3M Innovative Properties Company (St. Paul, MN)
Inventors: David M. Blomberg (Lino Lakes, MN), Nathan A. Abel (Minneapolis, MN)
Primary Examiner: Susan Bennett Hattan
Assistant Examiner: Brett Miller
Application Number: 29/413,413
Classifications
Current U.S. Class: Battery (D13/119)