Twist on disposable filter

- Caterpillar Inc.
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Description

FIG. 1 is a front elevational view of a twist on disposable filter embodying our new design;

FIG. 2 is a top elevational view thereof;

FIG. 3 is a bottom elevational view thereof;

FIG. 4 is a right side elevational view;

FIG. 5 is a left side elevational view thereof; and

FIG. 6 is a rear elevational view thereof.

Referenced Cited
U.S. Patent Documents
D132610 June 1942 Zuckerman
D255045 May 20, 1980 Kronsbein
D288707 March 10, 1987 Macevicz et al.
D293016 December 1, 1987 Fisher
3481478 December 1969 Williams
4642183 February 10, 1987 Hebert
Patent History
Patent number: D296925
Type: Grant
Filed: May 30, 1986
Date of Patent: Jul 26, 1988
Assignee: Caterpillar Inc. (Peoria, IL)
Inventors: John J. Groezinger (Dunlap, IL), Philip E. Moldenhauer (Peoria, IL)
Primary Examiner: Wallace R. Burke
Assistant Examiner: Brian N. Vinson
Attorney: John W. Grant
Application Number: 6/869,066
Classifications
Current U.S. Class: Filter Or Strainer (2) (D23/209)