Protective cover for respirator filter

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Description

FIG. 1 is a perspective view of the protective cover for respirator filter embodying the design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a side elevational view thereof; and,

FIG. 4 is a bottom plan view thereof.

Referenced Cited
U.S. Patent Documents
5033507 July 23, 1991 Pouchot
5036844 August 6, 1991 Pouchot et al.
5353789 October 11, 1994 Schlobohm
5535736 July 16, 1996 Jzaw
Patent History
Patent number: D414861
Type: Grant
Filed: Sep 2, 1998
Date of Patent: Oct 5, 1999
Inventor: Karl Metzger (Lenexa, KS)
Primary Examiner: Stella Reid
Attorney: William B. Shook, Hardy & Bacon Kircher
Application Number: 0/93,045
Classifications
Current U.S. Class: Respirator, Vaporizer, Or Inhalation Tube (4) (D24/110)
International Classification: 2404;