Search Images Maps Play YouTube News Gmail Drive More »
Sign in
Screen reader users: click this link for accessible mode. Accessible mode has the same essential features but works better with your reader.


  1. Advanced Patent Search
Publication numberUSD234356 S
Publication typeGrant
Publication dateFeb 18, 1975
Filing dateJul 17, 1972
Publication numberUS D234356 S, US D234356S, US-S-D234356, USD234356 S, USD234356S
InventorsJohn Joseph Humphrey
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Combined filter and regulator for pressurized fluid
US D234356 S
Abstract  available in
Previous page
Next page
Claims  available in
Description  (OCR text may contain errors)

United States Patent 234,356

Patented Feb. 18, 1975 COMBINED FILTER AND REGULATOR FOR PRESSURIZED FLUID Clair Dean Holben and John Joseph Humphrey, Denver, Colo., assignors to C. A. Norgren Co., Littleton, Colo.

Filed July 17, 1972, Ser. No. 272,162

Term of patent 14 years Int. Cl. D23-01 US. Cl. D23-4 FIG. 1 is a perspective view of a combined filter and D. 152,809 2/1949 MacCauley D23-21 regulator for pressurized fluid showing our new design; D. 160,010 9/1950 Peeps D2321 X FIG. 2 is a side elevational view thereof; 2,894,600 7/ 1959 Veres. FIG. 3 is an additional side elevational view thereof; 3,269,097 8/1966 German 55337 FIG. 4is atop view thereof; and 3,418,789 12/1968 Hoffman et a1. 55219 FIG. 5 is a bottom view thereof. 3,507,098 4/1970 Veres et a1. 552l9 We claim: The ornamental design for a combined filter and regu- OTHER REFERENCES lator for pressurized fluid, as shown. Deslgn NQWS, 1965, back Cover- Norgren Catalog, NC3l'a, recd Sept. 4, 1964, pp. 3. References Cited and UNITED STATES PATENTS JAMES R. LARGEN, Primary Examiner D. 136,961 1/1944 Siemers D234 D. 121,574 7/1940 Roselund D2321 X

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US7441664Sep 18, 2003Oct 28, 2008Pur Water Purification Products Inc.Water treatment devices and cartridges therefor
US7615152Aug 19, 2003Nov 10, 2009Pur Water Purification Products, Inc.Water filter device
US7740765May 13, 2009Jun 22, 2010The Procter & Gamble CompanyMethods for treating water
US7740766May 13, 2009Jun 22, 2010The Procter & Gamble Companyfiltration through mesoporous activated carbon filter particles; killing or removal of bacteria, viruses, and microorganisms; particles coated with silver or a silver containing material
US7749394May 13, 2009Jul 6, 2010The Procter & Gamble CompanyMethods of treating water
US7850859May 13, 2009Dec 14, 2010The Procter & Gamble CompanyTreating low-pressure, untreated drinking water with a water treatment device comprising a storage housing and mesoporous activated carbon filter particles; pore size adequate toremove bacteria and viruses; potable drinking water forthird-world countries
US7922008 *Jul 10, 2009Apr 12, 2011The Procter & Gamble CompanyWater filter materials and water filters containing a mixture of microporous and mesoporous carbon particles
US8119012Mar 7, 2011Feb 21, 2012The Procter & Gamble CompanyWater filter materials and water filters containing a mixture of microporous and mesoporous carbon particles