Full-face respirator lens

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Description

FIG. 1 is a perspective view of a full-face respirator lens showing the new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a left side elevational view thereof;

FIG. 4 is a right side elevational view thereof;

FIG. 5 is a rear elevational view thereof; and,

FIG. 6 is a bottom elevational view thereof;

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

The shading shown in the drawings is provided merely to illustrate contour; it is not indicative of any particular texture.

Referenced Cited
U.S. Patent Documents
D213077 December 1968 Holloway
D240086 May 1976 Riblett et al.
D249368 September 12, 1978 Watkins, Jr.
D285496 September 2, 1986 Berman
D331988 December 22, 1992 Markert
D336546 June 15, 1993 Lybrand
D351226 October 4, 1994 Parvatharaj
D378610 March 25, 1997 Reischel et al.
D388882 January 6, 1998 Grannis et al.
3545436 December 1970 Holloway
3602219 August 1971 Warncke
3680555 August 1972 Warncke
4057057 November 8, 1977 Backlund
4069516 January 24, 1978 Watkins, Jr.
4167185 September 11, 1979 Lewis
4373520 February 15, 1983 Arbique
4402316 September 6, 1983 Gadberry
4414973 November 15, 1983 Matheson et al.
4574799 March 11, 1986 Warncke
4595003 June 17, 1986 Shoemaker et al.
4739755 April 26, 1988 White et al.
4756308 July 12, 1988 Ryback
4850346 July 25, 1989 Michel et al.
4881538 November 21, 1989 Angell
4960121 October 2, 1990 Nelson et al.
4961420 October 9, 1990 Cappa et al.
5069205 December 3, 1991 Urso
5080092 January 14, 1992 Tenna
5720291 February 24, 1998 Allen et al.
Foreign Patent Documents
0 511 593 A1 November 1992 EPX
2 268 076 January 1994 GBX
WO 91/01159 February 1991 WOX
WO 92/19322 November 1992 WOX
WO 93/14819 August 1993 WOX
Other references
  • Cabot Safety Respirator Products--The Life Line product literature (1993). North RP-107 Air-Purifying Respiratory Protection Catalog (1991). MSA Comfo.RTM. II and Comfo Elite.RTM. Respirators products literature (1993). MSA Comfo Classic Respirators product literature (1995). MSA ComfoElite.TM. product literature (1990). Gerson Signature Series 9000 product literature (1995). Gerson Signature Series 8000 product literature (1995). Willson product literature (1991). The Lab Safety Supply Catalog "Respirators" pp. 130, 112, 110, 1994, Ex Room. 3M.TM. 6000 Series Full Facepiece Respirators product literature #70-0707-5770-6 (1264)ii (Dec. 1996). 3M 6000 Series Half and Full Facepiece Respirators product literature #70-07078-4558-4(1081)ii (Oct. 1998). 36 6000 Series Full Facepiece Respirator product literature #34-7045-4459-1 (1998). ISI Facemask product literature. Neoterik advertisement for the Technirama respirator. Drager Atemkomfort mit DragerSchutz Panorama BelAir M product literature. Fernez Cosmo The Innovative Mask product literature. Cairns & Brother CairnsIRIS.TM. product literature. Sekur Spa Sfera.TM. product literature. SGE 600 product literature. Drager Atemkomfort mit DragerSchutz: Panorama BelAir product literature (6 pages). MSA Advantage 1000 Low-Maintenance Respirator product literature (1993). Scott Weld-O-Vista.TM. product literature (1994). MSA Constant Flow or Pressure Demand Duo-Flo.TM. and Duo-Twin.TM. Respirator product literature (1999). MSA Optimair.TM. 6A Papr with Optifilter.TM. Catridges product literature (1988). ProTech Respirators, Inc. product literature (1993). Scott Health & Safety Full-Line Catalog product literature (May 1989). MSA Ultra Elite.TM. Facepiece product literature dated (1994). Drager Luft holen . . . Der Atemschutz-Katalog (1993/94). Scott respirator product literature (1992).
Patent History
Patent number: D426298
Type: Grant
Filed: Jul 20, 1998
Date of Patent: Jun 6, 2000
Assignee: 3M Innovative Properties Company (St. Paul, MN)
Inventors: Vaughn B. Grannis (Inver Grove Heights, MN), David P. Knivsland (North St. Paul, MN), Joseph G. Reischel (Woodbury, MN), Gerald M. Brostrom (Burnsville, MN), David C. Byram (River Falls, MN)
Primary Examiner: Stella Reid
Assistant Examiner: I Simmons
Attorney: Karl G. Hanson
Application Number: 0/90,916
Classifications
Current U.S. Class: D24/1102; D24/1104
International Classification: 2902;