Float operated fill valve
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United States of America Patent
Stats
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Aug 8, 1995
Issued Date -
N/A
app pub date -
Dec 28, 1994
filing date -
Jul 8, 1992
priority date (Note) -
Expired
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Abstract
A fill valve assembly for a toilet tank or the like includes a riser and a head portion that can be vertically adjusted without removal or disassembly of the valve in order to select a precise tank liquid level. Telescoping conduits in the riser are secured in adjusted position by a bayonet latch system including detents assisted by the force applied by pressurized liquid at the inlet to the assembly. A main valve disk is held against a valve seat by pressure in a control chamber in a standby position and is moved to an open position by venting of the control chamber. The valve includes an axial peripheral flange having an enlarged bead portion captured in an annular channel to provide an O-ring type seal against positive and negative pressure while maximizing flexibility of the disk. A lever for controlling a pilot seat for venting the chamber is pivoted between fulcrum flanges and is held by shoulders abutting one of the flanges. The lever is pivoted by a float in a float chamber. A weir and a float controlled valve prevent entry of water into the float chamber in a refill cycle until tank liquid level reaches the selected level to be maintained.
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Patent Owner(s)
- JOHNSON FAMILY TRUST DATED JANUARY 5, 2001
International Classification(s)
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Johnson, Dwight N | 6327 Chorlito Dr., Carlsbad, CA 92008 | 68 | 1103 |
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Fee | Large entity fee | small entity fee | micro entity fee | due date |
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Fee | Large entity fee | small entity fee | micro entity fee |
---|---|---|---|
Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
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