Combined quick-change filter cartridge and head
United States Patent D313832

Petrucci, Raymond M. (Middlebury, CT)
Taylor, Bruce G. (Kensington, CT)
Giordano, Edward C. (Manchester, CT)
Padilla, James M. (Covina Heights, CA)
Palmer, Carl (La Habra Heights, CA)
Application Number:
Publication Date:
Filing Date:
Cuno Incorporated (Meriden, CT)
Primary Class:
Field of Search:
D23/207-210, 210/136, 210/238, 210/282, 210/234, 210/440, 210/444, 210/446, 210/448, 210/457, 210/492
View Patent Images:
US Patent References:
D295438Water treatment assembly headApril, 1988Bray et al.D23/207
4192750Stackable filter head unitMarch, 1980Elfes et al.210/232
D251380FilterMarch, 1979CasamitjanaD23/209
D220263N/AMarch, 1971HughesD23/209
3237770Filter apparatusMarch, 1966Humbert, Jr.210/94
D199075N/ASeptember, 1964KudlatyD23/209
D199139N/ASeptember, 1964KudlatyD23/209
2955712High pressure oil filter unit having threaded bowl assembly valve actuating meansOctober, 1960Gutkowski210/234
D188688N/AAugust, 1960SicardD23/209
1624526Oil filterApril, 1927BohmsackD23/209

Other References:
Brookstone Catalog Advertisement item water filter system, Jan. 1986, p. 42.
Primary Examiner:
Burke, Wallace R.
Assistant Examiner:
Tung M. H.
Attorney, Agent or Firm:
Weingram & Zall
1. The ornamental design for a combined quick-change filter cartridge andhead, as shown and described.


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.