Combined quick-change filter cartridge and head

- Cuno Incorporated
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Description

FIG. 1 is a top, rear, right side perspective view of a combined quick-change filter cartridge and head showing our new design;

FIG. 2 is a left side elevational view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom plan view thereof.

Referenced Cited
U.S. Patent Documents
D188688 August 1960 Sicard
D199075 September 1964 Kudlaty
D199139 September 1964 Kudlaty
D220263 March 1971 Hughes
D251380 March 20, 1979 Casamitjana
D295438 April 26, 1988 Bray et al.
1624526 April 1927 Bohmsack
2955712 October 1960 Gutkowski
3237770 March 1966 Humbert, Jr.
4192750 March 11, 1980 Elfes et al.
Other references
  • Brookstone Catalog Advertisement item water filter system, Jan. 1986, p. 42.
Patent History
Patent number: D313832
Type: Grant
Filed: Sep 26, 1989
Date of Patent: Jan 15, 1991
Assignee: Cuno Incorporated (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: Wallace R. Burke
Assistant Examiner: M. H. Tung
Law Firm: Weingram & Zall
Application Number: 7/412,875
Classifications
Current U.S. Class: Filter Or Strainer (2) (D23/209)