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:
Jun. 08, 1999
Filed:
Aug. 05, 1997
Theodore C Stamos, Spring, TX (US);
Stephen L Galbraith, Mequon, WI (US);
Thomas P Honzelka, Grafton, WI (US);
Autotrol Corporation, Milwaukee, WI (US);
Abstract
A control valve for a fluid treatment system, such as a water softener or a water filter, includes a manifold which mounts a pair of open-ended, cylindrical valve bodies having ports in fluid communication with passages in the manifold. Interchangeable single and double poppet valve assemblies are received into the open ends of the valve body. The poppet valve assemblies have diaphragm valve actuators disposed between chambers that are in fluid communication with selective ones of an array of pilot valves that are also mounted on the manifold. The valve assemblies may be piloted to one position by a spring. A tank adapter connects the manifold to a treatment tank. The tank adapter can be connected to the manifold in two alternate alignments which connect passages in the manifold to the top and bottom of the treatment tank so that co-current or countercurrent flow of regenerative fluid and the fluid to be treated can be alternately selected. A variety of sequences of flow paths can be selected by selection of the interchangeable poppet valve assemblies, by plugging selected ports in the valve housing, and by capping open, unused ends of the valve bodies.