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Class Information
Number: 137/613
Name: Fluid handling > Systems > Flow path with serial valves and/or closures
Description: Systems comprising a single flow path for a fluent material having two or more spaced valves, flow controllers or closures therein through which the fluent material passes serially.










Sub-classes under this class:

Class Number Class Name Patents
137/614.19 Biased valve with external operator 164
137/614.21 Coaxial oppositely directed seats 107
137/614.11 Common actuator 191
137/614.2 Direct response normally closed valve limits direction of flow 344
137/614.18 One valve head carries other valve head 142
137/614.16 One valve head provides seat for other head 29
137/614 Separable flow path section, valve or closure in each 178


Patents under this class:
1 2 3 4 5 6 7 8 9 10 11

Patent Number Title Of Patent Date Issued
8701710 Pressurized gas containing system Apr. 22, 2014
8656952 Beverage faucet and flow reducer Feb. 25, 2014
8636023 Automatic air vent for fire suppression wet pipe system and method of venting a fire suppression wet pipe system Jan. 28, 2014
8622068 Miniature gas cabinet Jan. 7, 2014
8616228 Multi-stage ratio pressure regulator system Dec. 31, 2013
8616237 Mesofluidic two stage digital valve Dec. 31, 2013
8596296 Regulation valve Dec. 3, 2013
8567442 Soft start device for pneumatic systems and method for the operation of a soft start device Oct. 29, 2013
8550112 Multifunctional safety valve device with incorporated proportional pressure regulator Oct. 8, 2013
8545216 Valve assemblies for heating devices Oct. 1, 2013
8539978 Gas valve unit with bypass flow Sep. 24, 2013
8534319 Serial siphon valves for fluidic or microfluidic devices Sep. 17, 2013
8517718 Dual fuel heating source Aug. 27, 2013
8499789 Mobile gas supply system Aug. 6, 2013
8500092 Secondary seat for gas regulator Aug. 6, 2013
8469053 Flow control valve Jun. 25, 2013
8459202 Substrate processing apparatus Jun. 11, 2013
8453676 Fugitive emission reducing valve arrangement Jun. 4, 2013
8439068 Fluid flow control valve May. 14, 2013
8430125 Combined control valve and coupler Apr. 30, 2013
8424569 Spout assembly for an electronic faucet Apr. 23, 2013
8424818 Boat installation frame for transportation tanks Apr. 23, 2013
8418716 Volume and pressure regulating device for oxygen Apr. 16, 2013
8408247 Element for controlling filling and/or drawing of a pressurized gas, tank and circuit provided with such an element Apr. 2, 2013
8409357 Self-cleaning apparatus and method for thick slurry pressure control Apr. 2, 2013
8365755 Ball valve isolator Feb. 5, 2013
8347916 Self-sealing chemical injection line coupling Jan. 8, 2013
8347915 Load-lock technique Jan. 8, 2013
8336577 Pressurized gas containing system Dec. 25, 2012
8336578 Quick release gas pressure regulator Dec. 25, 2012
8333217 Fault-tolerant bleed valve assembly Dec. 18, 2012
8327871 Multi-valve cartridge pressure regulator Dec. 11, 2012
8316886 Near boiler piping apparatus with open drain Nov. 27, 2012
8312895 Solenoid valve device Nov. 20, 2012
8297313 Pressure abatement emergency shut down assembly with a collapsible member retained valve member Oct. 30, 2012
8286937 Tubular valve device Oct. 16, 2012
8251081 Device for metering fluids Aug. 28, 2012
8251082 Dual valve method and apparatus for limiting toilet water flow Aug. 28, 2012
8240325 Gas flow device Aug. 14, 2012
8235064 Single coil redundant valve Aug. 7, 2012
8225816 Pressurized gas filling and distribution head and tank equipped with one such head Jul. 24, 2012
8220478 Fluid flow control apparatus Jul. 17, 2012
8220479 Multi-stage ratio pressure regulator system Jul. 17, 2012
8201579 Conveying chamber hose for a device for conveying fluid and a device for conveying fluid with the conveying chamber hose Jun. 19, 2012
8171950 Compressed air regulator apparatus situated in canister and method for regulating compressed air thereof May. 8, 2012
8166998 Multiple valve assembly for reducing water loss from a leak May. 1, 2012
8162287 Valve assembly for modulating fuel flow to a gas turbine engine Apr. 24, 2012
8162002 Device for controlling the delivery of a combustible gas to a burner apparatus Apr. 24, 2012
8162000 Adjustable pneumatic system for a surgical machine Apr. 24, 2012
8161998 Frozen/chilled fluid for pipelines and for storage facilities Apr. 24, 2012

1 2 3 4 5 6 7 8 9 10 11










 
 
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