The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 07, 1985
Filed:
May. 06, 1983
Applicant:
Inventors:
James W Chandler, Ashland, OH (US);
William D Chandler, Ashland, OH (US);
Assignee:
Water Soft, Inc., Ashland, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D / ; B01D / ;
U.S. Cl.
CPC ...
210278 ; 210288 ;
Abstract
A water filter adapted for installation in the hot and cold water supply lines leading to a faucet, appliance or the like includes a housing containing a granular activated carbon filtration bed and a two position valve with three ports for controlling water flow through the filtration bed. The valve has a first service position for normal flow of cold water through the filtration bed to the effluent line from the water filter and a second backwash position for flow of hot water through the filtration bed in an opposite direction to then drain through the same effluent line.