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Class Information
Number: 138/DIG.3
Name: Pipes and tubular conduits > Teflon™, kel-f
Description:










Patents under this class:
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Patent Number Title Of Patent Date Issued
8141593 System for tightly covering an elongate member with an elastic protection sleeve Mar. 27, 2012
7870877 Coated pipes for harsh environments Jan. 18, 2011
7871684 Coated pipes for conveying oil Jan. 18, 2011
7588058 Coated pipes for harsh environments Sep. 15, 2009
7575789 Coated pipes for conveying oil Aug. 18, 2009
7273645 Fluorocopolymer Sep. 25, 2007
7156125 Coaxial hose assembly and method of making same Jan. 2, 2007
6921565 Hose construction containing thermoplastic quadpolymers Jul. 26, 2005
6789577 Hydropneumatic pressure accumulator Sep. 14, 2004
6770372 Polymer compositions intended for the manufacture of pipes for conveying hydrocarbons and articles based on these compositions Aug. 3, 2004
6758245 Composite pipe having a PTFE inner layer and a covering layer of a fiber-reinforced plastics material Jul. 6, 2004
6742952 Transparent or translucent tubular structure Jun. 1, 2004
6378562 Multi-layer tubing having electrostatic dissipation for handling hydrocarbon fluids Apr. 30, 2002
6341625 Hydraulic brake hose assembly for bicycles Jan. 29, 2002
6334466 Abrasion-resistant material handling hose Jan. 1, 2002
6321795 Multi-layer fuel and vapor tube Nov. 27, 2001
6305428 Flexible hoses Oct. 23, 2001
6293312 Thermoplastic tubing Sep. 25, 2001
6240970 Tubing for handling hydrocarbon materials and having an outer jacket layer adhered thereto Jun. 5, 2001
6089277 Fuel transporting hose having inner layer made of fluorine-contained resin Jul. 18, 2000
6070615 Leakproof and fireproof tubing Jun. 6, 2000
6024133 Fuel transporting hose having inner layer made of fluorine-contained resin Feb. 15, 2000
6020033 Method of making polyfluoroorgano composites Feb. 1, 2000
5988226 High pressure safety hose assembly and method of manufacturing Nov. 23, 1999
5964251 Chemically bonded multi-wall conduit Oct. 12, 1999
5941286 Composite fuel and vapor barrier tube and process for making same Aug. 24, 1999
5937911 Fuel transporting hose having resin tube of fluorine-contained resin layer and other synthetic resin layer, and process of producing the resin tube Aug. 17, 1999
5934332 Pipe lining Aug. 10, 1999
5908090 Whip dampener assembly for vehicle brake hose system Jun. 1, 1999
5896894 Elongated tubular housing for monitoring systems Apr. 27, 1999
5875872 Whip dampener bracket assembly for vehicle brake hose system Mar. 2, 1999
5778942 Vehicle including freeze stress resistant fluid conducting apparatuses Jul. 14, 1998
5722802 Powder delivery apparatus Mar. 3, 1998
5716684 Multilayer polymer pipe Feb. 10, 1998
5678611 Multi-layer fuel and vapor tube Oct. 21, 1997
5653266 Chemically bonded multi-wall conduit Aug. 5, 1997
5647400 Polyfluorocarbon/elastomer laminates Jul. 15, 1997
5639528 Hose construction containing fluoroplastic terpolymers Jun. 17, 1997
5626930 Multi-layer compositions having a fluoroplastic layer May. 6, 1997
5613524 Fluorocarbon hose assembly including integral foamed fluorocarbon layer Mar. 25, 1997
5611373 Laminated fuel line and connector Mar. 18, 1997
5560398 Sequentially coextruded coolant conduit Oct. 1, 1996
5520287 Method and apparatus for dividing fat and lean meat May. 28, 1996
5497809 Vented bending sleeves for coaxial tubing systems Mar. 12, 1996
5460247 Vehicle brake hose system with whip dampener Oct. 24, 1995
5430603 Externally non-conductive hose assembly Jul. 4, 1995
5419374 Polyamide-based tube for a gasoline transport May. 30, 1995
5381834 Hose assembly including reinforced layer having wear reducing fibers Jan. 17, 1995
5361806 Kevlar reinforced high pressure hose assembly with grip and environmental barrier Nov. 8, 1994
5356681 Multi-layer rubber hose and method for producing the same Oct. 18, 1994

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