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. 01, 2021
Filed:
Sep. 04, 2019
Culligan International Company, Rosemont, IL (US);
Eugene Boglio, Glendale Heights, IL (US);
Doug Anderson, St. Charles, IL (US);
Adam Sloma, Arlington Heights, IL (US);
Lonnie Webb, Waterford, WI (US);
Harkirat Sahni, Tampa, FL (US);
Bill Lathouris, Arlington Heights, IL (US);
CULLIGAN INTERNATIONAL COMPANY, Rosemont, IL (US);
Abstract
A control valve is provided for a fluid treatment apparatus, including a housing with at least one cylinder defining a fluid flow path in the apparatus, each cylinder having an associated reciprocating piston valve. The valve includes a first piston valve half; a second piston valve half complementary to the first piston valve half; and a resilient seal constructed and arranged for being sandwiched between the first and second piston valve halves. The first piston valve half is constructed and arranged for engaging the cylinder before the second piston valve half, and having an exterior peripheral edge defined by a plurality of peripherally spaced teeth creating flow spaces between the teeth.