Disposable faceshield

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Description

FIG. 1 is a top, front perspective view of a disposable faceshield showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a side elevational view thereof;

FIG. 4 is a front elevational view thereof;

FIG. 5 is a rear elevational view thereof;

FIG. 6 is a vertical sectional view thereof, taken along line 5--5 of FIG. 5; and

FIG. 7 is a bottom plan view thereof.

Referenced Cited
U.S. Patent Documents
D190461 May 1961 Worfold
D194221 December 1962 Zbikowski
D200834 April 1965 William
D227819 July 1973 Kotzar
D228700 October 1973 Gager, Jr.
D254520 March 25, 1980 Amirault
D254638 April 8, 1980 Bay, Jr.
2033691 March 1936 Douglass
2774970 December 1956 DuBois
3152588 October 1964 Rogowski
3772707 November 1973 Alosi et al.
3828366 August 1974 Conrad et al.
4674136 June 23, 1987 Ladewig
4701129 October 20, 1987 Hazard
Foreign Patent Documents
R151181 February 1956 DEX
779016 January 1935 FRX
Patent History
Patent number: D311978
Type: Grant
Filed: Feb 5, 1988
Date of Patent: Nov 6, 1990
Assignee: American Optical Corporation (Southbridge, MA)
Inventor: Richard T. Metcalfe (Southbridge, MA)
Primary Examiner: Bernard Ansher
Assistant Examiner: C. Tuttle
Law Firm: Fishman, Dionne & Cantor
Application Number: 7/152,984