Respirator having line of sight illumination

Description

FIG. 1 is a perspective view of the respirator having line of sight illumination embodying the design of the present invention;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a side elevational view thereof, the side opposite being a mirror image of the side shown in FIG. 4;

FIG. 5 is a top plan view thereof; and,

FIG. 6 is a bottom view thereof.

Referenced Cited
U.S. Patent Documents
3182658 May 1965 Klinger
3528415 September 1970 Malmin
3820538 June 1974 Nakanishi
4195918 April 1, 1980 Freche et al.
4676236 June 30, 1987 Piorkowski
4709696 December 1, 1987 Angell
4945574 August 7, 1990 Dagher
Patent History
Patent number: D341889
Type: Grant
Filed: Sep 23, 1991
Date of Patent: Nov 30, 1993
Inventor: Kelly A. Viken (Fargo, ND)
Primary Examiner: Stella Reid
Attorney: Terry M. Gernstein
Application Number: 7/764,376
Classifications
Current U.S. Class: Pulmonary (38) (D24/164)