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Class Information
Number: 137/425
Name: Fluid handling > Liquid level responsive or maintaining systems > By float controlled valve > With counter-balance > Within tank
Description: Apparatus in which the counterbalancing means is within the tank holding the liquid accumulation.










Patents under this class:

Patent Number Title Of Patent Date Issued
8573246 Automatic filling termination device and cryogenic vessel with the same Nov. 5, 2013
8360093 Pilot fill valve Jan. 29, 2013
6913035 Water filler for water tank Jul. 5, 2005
6823785 Printing unit Nov. 30, 2004
6776200 Trigger apparatus and material handling apparatus including the same Aug. 17, 2004
5715856 Liquid flow control apparatus Feb. 10, 1998
5669083 Water saver for flush tanks Sep. 23, 1997
5349981 Drain valve for a flush tank Sep. 27, 1994
5179739 Water conserving toilet assembly Jan. 19, 1993
5035257 Toilet tank valve Jul. 30, 1991
4874531 Apparatus and method for separating water from aviation fuel, and float control therefor Oct. 17, 1989
4854340 Toilet-tank float-booster Aug. 8, 1989
4503881 Automatic counterbalanced sewer valve with float closure Mar. 12, 1985
4483367 Stop fill valve Nov. 20, 1984
4453560 Hydraulically balanced valve mechanism Jun. 12, 1984
4313459 Automatic fill-stop valve Feb. 2, 1982
3935686 Vehicle drain hole plug Feb. 3, 1976











 
 
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