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Class Information
Number: 137/625.13
Name: Fluid handling > Systems > Multi-way valve unit > Sequentially progressive opening or closing of plural ports > With subsequent closing of first port
Description: Devices in which the first opened port is subsequently closed by continued movement of the valve unit.










Sub-classes under this class:

Class Number Class Name Patents
137/625.14 Flow combining with flow dividing 6
137/625.15 Rotary 78


Patents under this class:

Patent Number Title Of Patent Date Issued
8613276 Dual fuel gas valve and gas grill Dec. 24, 2013
8567439 Flow divider for hydraulic circuits Oct. 29, 2013
8474482 Plumbing shutoff or switching valve Jul. 2, 2013
8474483 Valve unit with a sliding throttle-chamber and circuit comprising a valve Jul. 2, 2013
8430346 Compressed air throttle device and a powder spray coating device Apr. 30, 2013
7967005 Dual fuel gas valve and gas grill Jun. 28, 2011
7309430 Filtration system utilizing a single valve to direct fluid streams between filter assemblies and corresponding methods Dec. 18, 2007
6619613 Gas flow rate controller and gas appliance using the same Sep. 16, 2003
6408882 Diverter valve Jun. 25, 2002
5803117 Multi-route full sweep selection valve Sep. 8, 1998
5758829 Fuel injection valve for internal combustion engines Jun. 2, 1998
5248084 Apparatus and method for controlling the water flow rate from the boiler circuit to the heating circuit in hot water heating systems Sep. 28, 1993
5193237 Pneumatic wheel chair cushion for reducing ischemic injury Mar. 16, 1993
4649955 Pulsed gas supply Mar. 17, 1987
4649028 Electrolyte analyzer Mar. 10, 1987
4461052 Scrubbing brush, rinse and sweeping equipment Jul. 24, 1984
4403626 Valve assembly Sep. 13, 1983
4224958 Valve device for diverting and combining fluid flows Sep. 30, 1980
4064845 Metering valve for pilot fuel injection Dec. 27, 1977
3988787 Pressure differential valve for swimming pool Nov. 2, 1976
3960234 Controller for fluid pressure operated devices providing high pressure to an auxiliary device Jun. 1, 1976











 
 
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