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Class Information
Number: 137/411
Name: Fluid handling > Liquid level responsive or maintaining systems > By float controlled valve > Single float controls plural valves
Description: Apparatus in which a single float controls a plurality flow controlling means.

Patents under this class:

Patent Number Title Of Patent Date Issued
8689815 Air release vent valve Apr. 8, 2014
8215335 Automatic fluid flow control device Jul. 10, 2012
7931045 Water sensor apparatus Apr. 26, 2011
7921868 Airing and venting elements for pipes and fittings Apr. 12, 2011
7661438 Water saver fill valve and assembly Feb. 16, 2010
7334600 Priming apparatus for a centrifugal pump Feb. 26, 2008
7168441 Fuel cutoff valve Jan. 30, 2007
6712944 Gas/liquid phase separator for electrolysis cell Mar. 30, 2004
6076547 Device for operating a mechanism of a rinsing fixture Jun. 20, 2000
5511577 Air release valve Apr. 30, 1996
5174345 Drop tubes and overfill valves therefor Dec. 29, 1992
5088133 Flush mechanism for toilets Feb. 18, 1992
5035346 United liquid-level and pressure regulator for separators Jul. 30, 1991
4986320 Drop tube having an overfill valve Jan. 22, 1991
4671317 Water supply systems Jun. 9, 1987
4615056 Flushing cistern Oct. 7, 1986
4535799 Automatic liquid shut-off valve Aug. 20, 1985
4391673 Basementless separator system Jul. 5, 1983
4312083 Water closet flush valve Jan. 26, 1982
4209032 Air-relief valves Jun. 24, 1980
4173255 Low well yield control system and method Nov. 6, 1979
4034026 Multi-function fluid inlet valving means and reservoir means Jul. 5, 1977
3960164 Device for mixing gases with liquids Jun. 1, 1976

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