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.

Date of Patent:
Nov. 20, 2001

Filed:

Mar. 31, 2000
Applicant:
Inventors:

Peter Wiseburgh, Jerusalem, IL;

Gerald Tanny, Rehovot, IL;

Peter Hulley, Peterborough, GB;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 1/712 ;
U.S. Cl.
CPC ...
B01D 1/712 ;
Abstract

An apparatus and corresponding method for purifying water is described. The apparatus includes a supporting housing, a source of power, a filter device containing at least one interchangeable filter unit having one or more filter elements, a mechanism for driving water through the filter device and a timing mechanism for monitoring elapsed time of operation and a mechanism for monitoring cumulative volume of water having flowed through the filter device which are each coupled to a filter memory. The mechanism for driving water through the filter device includes a cylinder holder on which an interchangeable gas pressure cylinder can be mounted, a gas release mechanism housed in the cylinder holder, a flow regulator and conduits connecting the other components together.


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