Constant flow valve for a water softener control assembly

Details Constant flow valve for a water softener control assembly Constant flow valve for a water softener control assembly

2006-02-28

2006-02-28

Brinson, Patrick (Department: 3754)

Pipes and tubular conduits

With flow regulators and/or baffles

Restrictors

C138S046000, C137S843000

Reexamination Certificate

active

07004200

ABSTRACT:
A flow control valve controls a flow of water through a passage to a brine tank of a water treatment apparatus. A valve seat is between first and second sections of the passage. The valve seat has a first end with a concave surface facing the first section and an aperture extending from the concave surface to a second end that faces the second section. A groove in the concave surface extends from the first end to the aperture. A valve element moves within the first section in response to pressure of the water in the first section thereby varying the size of a path through the passage by an amount that varies as a function of the water pressure. The action of the valve element maintains a substantially constant flow rate through the flow control valve regardless of water pressure variation.

REFERENCES:
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patent: 1788358 (1931-01-01), Goerg
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patent: 3498315 (1970-03-01), Hester et al.
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patent: 5762093 (1998-06-01), Whitley, II
patent: 5910244 (1999-06-01), Stamos et al.

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