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Class Information
Number: 138/148
Name: Pipes and tubular conduits > Distinct layers > Spaced
Description: Device wherein at least one layer is spaced from an adjacent layer to form an enclosing chamber therearound.

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

Patent Number Title Of Patent Date Issued
8651148 Bendable pre-insulated pipeline assembly Feb. 18, 2014
8616246 Insulated pipe and method for preparing the same Dec. 31, 2013
8555930 Assembly of coaxial pipes including junction parts with sealed inner cavities, and method for making same Oct. 15, 2013
8550122 Exhaust finisher retention operation Oct. 8, 2013
8544503 Fluid conduit with self-healing protective sleeve Oct. 1, 2013
8522828 Insulated double-walled exhaust system component and method of making the same Sep. 3, 2013
8418532 Steam generator for sodium cooled fast reactor, heat transfer tubes thereof, and leak detection unit for heat transfer tube thereof Apr. 16, 2013
8403186 Composite spout and injection-forming apparatus for forming the composite spout Mar. 26, 2013
8371338 Foam insulation structure and method for insulating annular ducts Feb. 12, 2013
8365776 Liquefied natural gas pipeline with near zero coefficient of thermal expansion Feb. 5, 2013
8365775 Concentric, insulated tubular conduits and method for assembly Feb. 5, 2013
8359846 Exhaust manifold Jan. 29, 2013
8356639 Insulated double-walled exhaust system component and method of making the same Jan. 22, 2013
8341953 Exhaust manifold Jan. 1, 2013
8291940 Flexible conduit pipe Oct. 23, 2012
8291943 Exhaust-gas conduction component Oct. 23, 2012
8276621 Element for a pipe for transporting hot gases and method of fabricating said element Oct. 2, 2012
8272407 Flexible hose and a paint application apparatus and system with same Sep. 25, 2012
8261558 Self-adjusting insulation, including insulation particularly suited for pipe or duct Sep. 11, 2012
8256469 Method for removal of permeate gases from a flexible tubular pipe and pipe embodied for carrying out the same Sep. 4, 2012
8191581 Wire tube structure for exhaust component Jun. 5, 2012
8166710 High altitude structure for expelling a fluid stream through an annular space May. 1, 2012
8163364 Flexible unbonded pipe and a method for producing such pipe Apr. 24, 2012
8127801 Advance instrumentation methods for pipes and conduits transporting cryogenic materials Mar. 6, 2012
8122914 Cryogenic transfer hose having a fibrous insulating layer and method of constructing such a transfer hose Feb. 28, 2012
8087432 Flexible heat-insulated conduit and method of making same Jan. 3, 2012
7997303 Pipe segment for a transfer line for transporting hot particulate material Aug. 16, 2011
7976920 Flexible unbonded pipe and a method for producing such pipe Jul. 12, 2011
7857553 Transfer pipe of dried concentrate and breakage detecting method of transfer pipe Dec. 28, 2010
7854241 Metal-clad insulating complex for a pipe Dec. 21, 2010
7845373 Insulator apparatus for vacuum insulated tubing Dec. 7, 2010
7766050 Conduit and method of forming Aug. 3, 2010
7735525 Thermally insulated apparatus for liquid chromatographic analysis Jun. 15, 2010
7717966 Barrier assembly for an exposure apparatus May. 18, 2010
7699078 Thermally insulated ductwork and method of manufacture Apr. 20, 2010
7681599 Line pipe for the transport of deep-frozen media Mar. 23, 2010
7677272 Insulator apparatus for vacuum insulated tubing Mar. 16, 2010
7631668 Piping element and manufacturing method and apparatus Dec. 15, 2009
7571745 Exhaust-gastight decoupling element from stripwound hoses Aug. 11, 2009
7559343 Insulation module for vessels Jul. 14, 2009
7530371 Insulator apparatus for vacuum insulated tubing May. 12, 2009
7461506 Exhaust gas cooler Dec. 9, 2008
7451785 Flexible tube Nov. 18, 2008
7451783 Position adjusting spacer and method for adjusting the position of a rehabilitating pipe using such Nov. 18, 2008
7441602 Flowline insulation system Oct. 28, 2008
7322378 Semiconductor apparatuses and pipe supports thereof Jan. 29, 2008
7318453 Spacing and centering device for a rigid double-wall duct with a low heat transfer coefficient Jan. 15, 2008
7305837 Cryogenic piping system Dec. 11, 2007
7302972 Thermo-insulated flexible tubing Dec. 4, 2007
7238317 Method of continuously producing a twin-wall pipe with a ventilation zone between a socket and an adjacent elevation Jul. 3, 2007

1 2 3 4 5 6 7

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