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Class Information
Number: 138/42
Name: Pipes and tubular conduits > With flow regulators and/or baffles > Restrictors > Tortuous path
Description: Devices in which the path of flow of the fluid is tortuous.










Sub-classes under this class:

Class Number Class Name Patents
138/43 Variable restriction 193


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

Patent Number Title Of Patent Date Issued
8646535 Flow restriction devices Feb. 11, 2014
8635858 Fluid-spray atomizer Jan. 28, 2014
8607746 Cooling system expansion tank Dec. 17, 2013
8550279 Anti-siphoning fuel device, system, and method Oct. 8, 2013
8517057 Pump installations Aug. 27, 2013
8511586 Disc shaped regulated drip irrigation emitter Aug. 20, 2013
8496193 Fluid control devices particularly useful in drip irrigation emitters Jul. 30, 2013
8496024 Paint circulation system with coiled back pressure regulator Jul. 30, 2013
8474484 Fluid control Jul. 2, 2013
8448819 Dispenser system May. 28, 2013
8448663 Vacuum relief valve May. 28, 2013
8439083 Apparatus and method for axially transferring fluids to a plurality of components May. 14, 2013
8439081 High flow nozzle system for flow control in bladder surge tanks May. 14, 2013
8434525 Noise reducing fluid passageways for fluid flow control devices May. 7, 2013
8430131 Noise control via outlet jet frequency dispersal Apr. 30, 2013
8387666 Noise control for fluid pressure reduction device for high pressure drop ratio Mar. 5, 2013
8391696 Fuel gas conditioning system with scissor baffles Mar. 5, 2013
8376312 Flow restrictor Feb. 19, 2013
8356633 Stacked conduit assembly and screw fastening method for conduit part Jan. 22, 2013
8322381 Static fluid flow conditioner Dec. 4, 2012
8312931 Flow restriction device Nov. 20, 2012
8295692 Scissor baffles for fuel gas conditioning system Oct. 23, 2012
8251100 Needle-type stepped cylindrical stopper for automatic control of water consumption in pipelines Aug. 28, 2012
8230874 Configurable fluid transfer manifold for inflatable footwear Jul. 31, 2012
8225811 Apparatus for the removal of moisture from a compressed air tank Jul. 24, 2012
8220727 Pressure-compensation drip tape Jul. 17, 2012
8186380 Decompression apparatus and inorganic porous body May. 29, 2012
8181671 Anti-resonant pulse diffuser May. 22, 2012
8141586 Fluid control Mar. 27, 2012
8141589 Fluid flow labyrinth Mar. 27, 2012
8100873 System and method for collecting exudates Jan. 24, 2012
8061890 Static mixer Nov. 22, 2011
RE42882 Fractal device for mixing and reactor applications Nov. 1, 2011
8033300 Fluid pressure reduction devices Oct. 11, 2011
8033301 Water saving tool Oct. 11, 2011
8025081 Fluid transfer insert Sep. 27, 2011
8020663 Method for reducing the noise generated by a hole under a high energy gas flow Sep. 20, 2011
7992637 Reverse flow in-flow control device Aug. 9, 2011
7950417 High flow nozzle system for flow control in bladder surge tanks May. 31, 2011
7938147 Apparatus and method for axially transferring fluids to a plurality of components May. 10, 2011
7931048 Water conditioner Apr. 26, 2011
7909054 Shank assembly for a fill valve Mar. 22, 2011
7886772 Noise reducing fluid passageways for fluid flow control devices Feb. 15, 2011
7878231 Piping with coolant inlet Feb. 1, 2011
7874721 Mixing element Jan. 25, 2011
7866345 Non-clogging flow restriction for pressure based flow control devices Jan. 11, 2011
7802592 Fluid pressure reduction devices Sep. 28, 2010
7789108 Micro-flow fluid restrictor, pressure spike attenuator, and fluid mixer Sep. 7, 2010
7766045 Fluid pressure reduction device for high pressure-drop ratios Aug. 3, 2010
7757964 Air cap Jul. 20, 2010

1 2 3 4 5 6 7 8 9










 
 
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