TREA

Pair of filter cartridges for a powered air-purifying respirator

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Information

  • Patent Grant
  • D477401
  • Patent Number
    D477,401
  • Date Filed
    Thursday, August 3, 2000
    24 years ago
  • Date Issued
    Tuesday, July 15, 2003
    21 years ago
  • US Classifications
    Field of Search
    • US
    • D24 1101
    • D24 1102
    • D24 162
    • D24 164
    • D24 1103
    • D24 1105
    • 128 20617
    • 128 20628
    • 128 20621
    • 128 20612
    • 128 20524
    • 128 20525
    • 128 20527
    • 128 20529
    • 128 20512
    • 128 20329
    • 128 20128
    • 128 20125
    • 128 20122
    • 128 20117
  • International Classifications
    • 2902
    • Term of Grant
      14Years
Information
Abstract
Description




FIG. 1 is a perspective view of a pair of filter cartridges for a powered air-purifying respirator, showing the new design in solid lines.




FIG. 2 is a top view thereof.




FIG. 3 is a left side view thereof.




FIG. 4 is a front view thereof.




FIG. 5 is a right side view thereof.




FIG. 6 is a bottom view thereof.




FIG. 7 is a rear view thereof; and,




FIG. 8 is a front view thereof, only illustrating the solid line portion of the design.




The broken line showing forms no part of the claimed design. The shading is provided only to illustrate contour; it is not indicative of texture, etc.



Claims
  • The ornamental design for a pair of filter cartridges for a powered air-purifying respirator.
US Referenced Citations (12)
Number Name Date Kind
2295119 Malcom et al. Sep 1942 A
2642061 Boyer Jun 1953 A
4088461 Brauer May 1978 A
4971052 Edwards Nov 1990 A
5036844 Pouchot et al. Aug 1991 A
5086768 Niemeyer Feb 1992 A
D326540 Scholey May 1992 S
RE35062 Brostrom et al. Oct 1995 E
D396283 Scholey Jul 1998 S
5906203 Klockseth et al. May 1999 A
6055983 Metzger May 2000 A
D440301 Fecteau et al. Apr 2001 S
Foreign Referenced Citations (9)
Number Date Country
3818295 Jul 1989 DE
0 108 560 May 1984 EP
0 164 946 Dec 1985 EP
0 078 110 May 1986 EP
0 352 938 Oct 1993 EP
572847 Jun 1924 FR
64-49257 Mar 1989 JP
WO 8300632 Mar 1983 WO
WO 9629116 Sep 1996 WO
Non-Patent Literature Citations (1)
Entry
Domestic Preparedness—Powered Air Protection for First Responders C420 Mil-Spec PAPR; SCOTT a Scott Technologies Company (dated Sep. 1999) (a four page brochure).