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Class Information
Number: 137/254
Name: Fluid handling > With liquid valves or liquid trap seals > Liquid valves > With baffle
Description: Apparatus in which one or more baffles is provided either in or above the liquid of the valve, usually to restrict, deflect, or slow up sudden rising of the valving liquid.










Patents under this class:

Patent Number Title Of Patent Date Issued
8156957 System for accurately weighing solids and control mechanism for same Apr. 17, 2012
8141577 Liquid filled pressure/vacuum valve for petroleum underground storage tanks Mar. 27, 2012
8100873 System and method for collecting exudates Jan. 24, 2012
7591278 Sewer system vent monitor Sep. 22, 2009
7543601 Passive pressure activation valve Jun. 9, 2009
7490624 Passive pressure activation valve Feb. 17, 2009
7302964 Housing for a liquid seal vacuum and pressure relief valve apparatus Dec. 4, 2007
6082183 Test assembly for fluid tight integrity of pipeline joint Jul. 4, 2000
4449242 Flexible, resilient anti-contamination baffle May. 15, 1984
4411286 Liquid seal valve Oct. 25, 1983
4222405 Pressure vacuum breaker Sep. 16, 1980
4067351 Hydraulic vent valve Jan. 10, 1978











 
 
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