Piston with integral seals for a water softener control valve

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 8141848
APP PUB NO 20060162790A1
SERIAL NO

11041449

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A piston for a control valve of a water treatment apparatus includes a body having a central portion from which at least one flange projects radially outward. Each flange has an outer peripheral surface extending around the central portion with an annular groove therein. The annular groove is undercut thereby having a width that increases from the peripheral surface radially inward into the flange. A separate sealing ring is molded into the groove of each flange and is captivated therein by the undercut of the groove. That captivation better enables each sealing ring to resist forces produced by the water flowing through the control valve without becoming dislodged from the flange.

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First Claim

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Patent Owner(s)

Patent OwnerAddress
PENTAIR RESIDENTIAL FILTRATION LLC13845 BISHOPS DRIVE SUITE 200 BROOKFIELD WI 53005

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Elston, Andrew C Sterling, US 1 7
Miller, Mark S Rockford, US 61 2590
Sieth, Kenneth J Delafield, US 31 322
Sund, Gregory E Poplar Grove, US 2 7

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