Resources Contact Us Home
Browse by Category: Main > Engineering
Class Information
Number: 137/435
Name: Fluid handling > Liquid level responsive or maintaining systems > By float controlled valve > Float arm operated valve > With valve retarder or cushion means
Description: Apparatus which includes in addition to the float mechanism, means to retard or cushion the rate of closing or opening of the flow controlling valve.

Patents under this class:

Patent Number Title Of Patent Date Issued
8360093 Pilot fill valve Jan. 29, 2013
6666229 Noise reducing housing for toilet tank fill valve Dec. 23, 2003
6370708 Toilet tank anti-refill device Apr. 16, 2002
5836346 Pilot operated diaphragm fill valve Nov. 17, 1998
5772928 Needle and seat valve assembly Jun. 30, 1998
5156197 Float type liquid level meter Oct. 20, 1992
5141644 Buoyed flapper valve Aug. 25, 1992
5072751 Valve assembly Dec. 17, 1991
4628956 Float valve mechanism Dec. 16, 1986
4453563 Non-chattering float controlled pilot operated diaphragm valve Jun. 12, 1984
4399835 Water saving toilet control valve Aug. 23, 1983
4110849 Apparatus and method for conserving water Sep. 5, 1978

  Recently Added Patents
Aggregating completion messages in a sideband interface
Managing method and apparatus for servicing contents provided by content provider
Laboratory spatula
Rewarding independent influencers
Calendar integration methods and systems for presentation of events having combined activity and location information
Multi-level integrated circuit, device and method for modeling multi-level integrated circuits
Transparent zebrafish and preparation method thereof
  Randomly Featured Patents
Conditioning agent for the treatment of base materials
Hydrodynamic bearing, spindle motor and hard disk drive
Proliposomal drug delivery system
Determination of cells in blood
Method for cutting the flanks of an infeed worm and worm milling machine
Pet sheet bed cover
Methods for the production of 3-methylamino-1-(thiene-2-yl)-propane-1-ol
Process for producing 2-azabicyclo[2.2.1]hept-5-en-3-one
Quick action woodworking vise
Electro-hydraulic compression release brake