Portable filtration unit

Description

FIG. 1 is a front elevational view of a portable filtration unit showing my new design.

FIG. 2 is a side elevational view of the right side thereof as viewed in FIG. 1.

FIG. 3 is a rear elevational view thereof.

FIG. 4 is a left side elevational view thereof as viewed in FIG. 1.

FIG. 5 is a bottom plan view thereof.

FIG. 6 is a top plan view thereof.

The showing of the tubular elements broken away is to indicate indeterminate length.

Referenced Cited
U.S. Patent Documents
D194861 March 1963 Hoffinger
3012676 December 1961 Engelsberg
3616609 November 1971 Soares de Melo
3920552 November 1975 Elkern
4144167 March 13, 1979 Burkett et al.
Patent History
Patent number: D289429
Type: Grant
Filed: Jun 15, 1984
Date of Patent: Apr 21, 1987
Inventor: Harold C. Thumberger (Hamilton, OH)
Primary Examiner: B. J. Bullock
Assistant Examiner: Brian N. Vinson
Law Firm: Wood, Herron & Evans
Application Number: 6/620,889
Classifications
Current U.S. Class: D23/4