Respirator

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Description

FIG. 1 is a front elevational view of a respirator or similar article showing our design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a left end view thereof;

FIG. 4 is a right end view thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is a rear elevational view thereof; and,

FIG. 7 is a front perspective view thereof.

Referenced Cited
U.S. Patent Documents
D270957 October 11, 1983 Maryyanek et al.
3902485 September 1975 Wallace
3911413 October 1975 Wallace
4155358 May 22, 1979 McAllister et al.
4873970 October 17, 1989 Freidank et al.
4886058 December 12, 1989 Brostrom et al.
4981134 January 1, 1991 Courtney
Foreign Patent Documents
0258508 May 1986 EPX
52929 May 1972 FIX
833000 February 1985 FIX
1575813 January 1977 GBX
Patent History
Patent number: D339658
Type: Grant
Filed: Oct 30, 1991
Date of Patent: Sep 21, 1993
Assignee: Air-Ace Oy (Jyvaskyla)
Inventors: Reino Lahteenmaki (Turku), Jouni Teittinen (Raisio)
Primary Examiner: Kay H. Chin
Law Firm: Kane, Dalsimer, Sullivan, Kurucz, Levy, Eisele & Richard
Application Number: 7/784,805
Classifications
Current U.S. Class: D29/7; D29/8