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Class Information
Number: 138/37
Name: Pipes and tubular conduits > With flow regulators and/or baffles
Description: Pipes or pipe fittings having baffles or other means for changing the direction or rate of flow of fluid in the pipe or for governing the degree of turbulence of the flowing fluid.










Sub-classes under this class:

Class Number Class Name Patents
138/39 Flow facilitating 307
138/38 Heat transfer 244
138/40 Restrictors 261


Patents under this class:
1 2 3 4 5 6

Patent Number Title Of Patent Date Issued
8646485 Flow restrictor and method for reducing resistance of a flow Feb. 11, 2014
8616242 Pipe of circular overall cross section, fitted with an airflow rate regulating device Dec. 31, 2013
8607746 Cooling system expansion tank Dec. 17, 2013
8602063 Gas over liquid accumulator Dec. 10, 2013
8590599 Cooler arrangement Nov. 26, 2013
8521014 Fuel gas conditioning system with cross heat exchanger and scissor baffles Aug. 27, 2013
8517058 Lean duct fabrication Aug. 27, 2013
8500046 Turbulence control assembly for high pressure cleaning machine Aug. 6, 2013
8485230 Gas delivery system Jul. 16, 2013
8464761 Flow control arrangement Jun. 18, 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
8375987 Concentrator for increasing the particle concentration in an aerosol flow Feb. 19, 2013
8322381 Static fluid flow conditioner Dec. 4, 2012
8295692 Scissor baffles for fuel gas conditioning system Oct. 23, 2012
8276779 Baffle for automotive fuel tank Oct. 2, 2012
8276618 Flow restrictor and method for reducing resistance of a flow Oct. 2, 2012
8220496 Apparatus for reducing turbulence in a fluid stream Jul. 17, 2012
8205642 Flow-through sandwich core structure and method and system for same Jun. 26, 2012
8181671 Anti-resonant pulse diffuser May. 22, 2012
8167002 Flow restrictor May. 1, 2012
8141588 Flow control method and apparatus Mar. 27, 2012
8141589 Fluid flow labyrinth Mar. 27, 2012
8127798 Turning vane for air duct Mar. 6, 2012
8113313 Pipe assembly with scoop for directing fluid into a standpipe and for mitigating acoustic and vortex coupled resonance Feb. 14, 2012
8100873 System and method for collecting exudates Jan. 24, 2012
8033301 Water saving tool Oct. 11, 2011
7992637 Reverse flow in-flow control device Aug. 9, 2011
7958910 Filling nozzle Jun. 14, 2011
7954514 Air-admitting guide member Jun. 7, 2011
7938213 Vehicle drain hole structure May. 10, 2011
7886772 Noise reducing fluid passageways for fluid flow control devices Feb. 15, 2011
7882855 Air flow path for an air impingement finger duct Feb. 8, 2011
7866345 Non-clogging flow restriction for pressure based flow control devices Jan. 11, 2011
7811348 Air cleaner airflow shaper Oct. 12, 2010
7798175 High capacity water diversion conduit Sep. 21, 2010
7789320 Safety straw Sep. 7, 2010
7779868 Duct structure Aug. 24, 2010
7766045 Fluid pressure reduction device for high pressure-drop ratios Aug. 3, 2010
7735522 Fluid flow control device Jun. 15, 2010
7730907 Device, with vanes, for use within a pipeline, and pipeline arrangement including such device Jun. 8, 2010
7690400 Noise reducing fluid passageways for fluid control devices Apr. 6, 2010
7665442 Throttle plate for use with internal combustion engine Feb. 23, 2010
7644733 Duct with spiral groove Jan. 12, 2010
7607594 Nozzle apparatus and methods for providing a stream for ultrasonic testing Oct. 27, 2009
7594518 Vane assembly for HVAC duct systems Sep. 29, 2009
7537183 Universal bracket for transporting an assembled conduit May. 26, 2009
7513273 Fluid flow control device Apr. 7, 2009
7509979 Method and a device for slowing down and disintegrating a plug of liquid plunging forward in a duct Mar. 31, 2009
7487800 Flow restriction Feb. 10, 2009

1 2 3 4 5 6










 
 
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