Quick-change filter cartridge

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Description

FIG. 1 is a top, front, left side perspective view of a quick-change filter cartridge showing our new design;

FIG. 2 is a bottom plan view thereof;

FIG. 3 is a front elevational view thereof, the rear being identical;

FIG. 4 is a left side elevational view thereof, the right side being identical;

FIG. 5 is a top, front, left side perspective view of a second embodiment thereof;

FIG. 6 is a rear elevational view thereof, the front being a mirror image;

FIG. 7 is a left side elevational view thereof;

FIG. 8 is a bottom plan view thereof; and

FIG. 9 is a right side elevational view thereof, the lower portion shown partially for ease of illustration.

Referenced Cited
U.S. Patent Documents
D188688 August 1960 Sicard
D220263 March 1971 Hughes
D221850 September 1971 Anderson
D243767 March 22, 1977 Rutherford
D251380 March 20, 1979 Casamitjana
D251601 April 17, 1979 Kuykendall
D255045 May 20, 1980 Kronsbein
3237770 March 1966 Humbert, Jr.
Patent History
Patent number: D321394
Type: Grant
Filed: Nov 27, 1989
Date of Patent: Nov 5, 1991
Assignee: Cuno, Incorporate (Meriden, CT)
Inventors: Raymond M. Petrucci (Middlebury, CT), Bruce G. Taylor (Kensington, CT), Edward C. Giordano (Manchester, CT), James M. Padilla (Covina Heights, CA), Carl Palmer (La Habra Heights, CA)
Primary Examiner: Susan J. Lucas
Assistant Examiner: M. H. Tung
Law Firm: Renner, Kenner, Greive, Bobak, Taylor & Weber
Application Number: 7/412,874
Classifications
Current U.S. Class: Filter Or Strainer (2) (D23/209)