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Class Information
Number: 138/115
Name: Pipes and tubular conduits > Plural duct > Longitudinally extending common wall
Description: Device having a longitudinally extending element therein which constitutes a common wall for more than one passageway.










Sub-classes under this class:

Class Number Class Name Patents
138/117 Complementary sections 70
138/116 Distinct 89


Patents under this class:
1 2 3 4 5

Patent Number Title Of Patent Date Issued
8671992 Multi-cell spoolable composite pipe Mar. 18, 2014
8667995 Insulated ducts and insulated ductworks Mar. 11, 2014
8608995 Method for manufacturing a separated tip catheter Dec. 17, 2013
8608532 Climate control duct architecture for a vehicle Dec. 17, 2013
8511368 Geothermal heat exchanger Aug. 20, 2013
8459965 Production tubing member with auxiliary conduit Jun. 11, 2013
8444068 Dual flow pressure washer May. 21, 2013
8356577 Combination of a teat cup and a flexible milk tube, a coupling piece, and a method of monitoring the integrity of the flexible milk tube Jan. 22, 2013
8342211 Protective pipe cover and support apparatus Jan. 1, 2013
8210211 Method of manufacturing a unitary conduit for transporting fluids Jul. 3, 2012
8186386 Modular exhaust tube system May. 29, 2012
8146706 Air duct for vehicle air conditioning and air conditioner for vehicle Apr. 3, 2012
7895771 Clothes dryer with thermal insulation pad Mar. 1, 2011
7891383 Ringed tubular sheath and device for making such a sheath Feb. 22, 2011
7849885 Hose member Dec. 14, 2010
7849886 Unified conduit array Dec. 14, 2010
7841368 Unitary conduit for transporting fluids Nov. 30, 2010
7753082 Tube Jul. 13, 2010
7696434 Conduits Apr. 13, 2010
7637286 Absorber for a pipe construction or sewer construction and pipe or sewer configuration provided with the absorber Dec. 29, 2009
7635009 Unified conduit array Dec. 22, 2009
7574778 Interlocking cords Aug. 18, 2009
7559355 Tube for heat exchanger Jul. 14, 2009
7422035 Flat pipe suitable for variable flow capacity Sep. 9, 2008
7325576 Inflatable suction hose Feb. 5, 2008
7156125 Coaxial hose assembly and method of making same Jan. 2, 2007
7038133 Wire harness protector May. 2, 2006
7028715 Heated drain line apparatus Apr. 18, 2006
7025580 Method and apparatus for lining a conduit Apr. 11, 2006
6951227 Hose with multiple holes Oct. 4, 2005
6941972 Corrugated pipe Sep. 13, 2005
6929035 Thin walled compartmented tubular structure and its manufacturing process Aug. 16, 2005
6876797 Fire resistant conduit insert for optical fiber cable Apr. 5, 2005
6845789 High density fiber optic cable inner ducts Jan. 25, 2005
6823899 Insulated pipe arrangement and method for its production Nov. 30, 2004
6773340 Air-conditioning duct for vehicle Aug. 10, 2004
6774311 Multiple channel duct assembly for cables Aug. 10, 2004
6774308 Wire termination box assembly and associated method of installation Aug. 10, 2004
6739803 Method of installation of electrically heated pipe-in-pipe subsea pipeline May. 25, 2004
6718100 Fire resistant conduit insert for optical fiber cable Apr. 6, 2004
6692037 Flat water hose and hose connectors for flat water hose Feb. 17, 2004
6591900 Heat exchanger, tube for heat exchanger, and method of manufacturing the heat exchanger and the tube Jul. 15, 2003
6591577 Automobile door reinforcing member Jul. 15, 2003
6575198 Method of connecting two elongated portions of metallic plate, method of manufacturing exhaust pipe of two-passage construction, and exhaust pipe of two-passage construction Jun. 10, 2003
6564831 Entruded multitubular device May. 20, 2003
6517283 Cascading chute drainage system Feb. 11, 2003
6510870 Fluid conveying tube as well as method and device for manufacturing the same Jan. 28, 2003
6491066 Resilient bevel for profile wall pipe Dec. 10, 2002
6463699 Air beam construction using differential pressure chambers Oct. 15, 2002
6463960 Secondary conduit for transmission carriers Oct. 15, 2002

1 2 3 4 5










 
 
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