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Class Information
Number: 138/144
Name: Pipes and tubular conduits > Distinct layers > Bonded to each other > Spirally wound layer
Description: Device wherein at least one layer is spirally wound.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7600537 |
Reinforced plastic pipe |
Oct. 13, 2009 |
| 7530372 |
Flexible non-bonded pipe which is used to produce a dynamic pressurised fluid transfer hose and, in particular, a mud hose for rotary oil drilling |
May. 12, 2009 |
| 7357968 |
Reinforced, high pressure, low permeation multilayer hose |
Apr. 15, 2008 |
| 7156128 |
Synthetic resin pipe |
Jan. 2, 2007 |
| 7132160 |
Laminate tape |
Nov. 7, 2006 |
| 7093620 |
Reinforced plastic pipe and process for manufacturing the said pipe |
Aug. 22, 2006 |
| 6966344 |
Device for limiting the lateral buckling of armouring plies of a flexible pipe |
Nov. 22, 2005 |
| 6907906 |
Cuffed hose and method of manufacture |
Jun. 21, 2005 |
| 6889716 |
Fiber reinforced pipe |
May. 10, 2005 |
| 6857452 |
Composite spoolable tube |
Feb. 22, 2005 |
| 6851643 |
Spirally wound tube with enhanced inner diameter stiffness, and method of making same |
Feb. 8, 2005 |
| 6843273 |
Gilled pipe |
Jan. 18, 2005 |
| 6827110 |
Subsea insulated pipeline with pre-cured syntactic elements and methods of manufacture |
Dec. 7, 2004 |
| 6815022 |
Laminated structures constructed from adhesively joined sheet material layers |
Nov. 9, 2004 |
| 6807988 |
Thermoplastic reinforced hose construction |
Oct. 26, 2004 |
| 6769454 |
Flexible pipe including a vent passage and method of manufacturing same |
Aug. 3, 2004 |
| 6705351 |
Flexible pipe and method of fabricating same using overlapping layers |
Mar. 16, 2004 |
| 6703091 |
Structural lining system for pipes and method for applying same |
Mar. 9, 2004 |
| 6698457 |
Flexible hose, manufacturing method thereof and extruder |
Mar. 2, 2004 |
| 6688339 |
Composite high-pressure tube and method of manufacturing the tube |
Feb. 10, 2004 |
| 6679296 |
Ducting |
Jan. 20, 2004 |
| 6629547 |
Composite high-pressure pipe and method of joining same |
Oct. 7, 2003 |
| 6604550 |
Composite spoolable tube |
Aug. 12, 2003 |
| 6540174 |
Paperboard core with an improved chuck strength, for the paper industry, and a method of fabricating such |
Apr. 1, 2003 |
| 6530137 |
Heat-insulated pipe and manufacturing method |
Mar. 11, 2003 |
| 6516833 |
Helically wound reinforcing components for flexible tubular conduits |
Feb. 11, 2003 |
| 6513552 |
Multi-flex stainless steel roof drain hose |
Feb. 4, 2003 |
| 6446672 |
Flexible pipe including vent passage and method of manufacturing same |
Sep. 10, 2002 |
| 6446674 |
Method of producing homogeneous material with an extruder, an extruder, and a multilayer plastic pipe |
Sep. 10, 2002 |
| 6425418 |
Flexible tube and manufacturing method for the same |
Jul. 30, 2002 |
| 6425419 |
Flexible air ducting |
Jul. 30, 2002 |
| 6415825 |
Flexible conduit with high inertia hoop |
Jul. 9, 2002 |
| 6382258 |
Flexible tube and method of manufacturing the same |
May. 7, 2002 |
| 6363974 |
Flexible pipe and method of manufacturing same |
Apr. 2, 2002 |
| 6357485 |
Composite spoolable tube |
Mar. 19, 2002 |
| 6309717 |
Composite paperboard containers of optimized axial strength construction |
Oct. 30, 2001 |
| 6286558 |
Composite spoolable tube |
Sep. 11, 2001 |
| 6258197 |
Method for manufacturing pipe fitting, and pipe fitting |
Jul. 10, 2001 |
| 6250339 |
Sound-absorbing and heat-insulating duct |
Jun. 26, 2001 |
| 6227250 |
Lagged pipe for transporting fluids |
May. 8, 2001 |
| 6192940 |
Hoses for electric cleaner |
Feb. 27, 2001 |
| 6186182 |
Double-walled spiral pipe |
Feb. 13, 2001 |
| 6179009 |
Heat-insulating and noise reducing duct |
Jan. 30, 2001 |
| 6158477 |
Flexible duct and method of making same |
Dec. 12, 2000 |
| 6155304 |
Reinforced flexible tubing for fluid handling systems and method |
Dec. 5, 2000 |
| 6105621 |
Flexible oval duct for heating and cooling systems and method such ducts |
Aug. 22, 2000 |
| 6103971 |
Cleaner hose with internal spiral wound steel and resin fibers |
Aug. 15, 2000 |
| 6066373 |
Elastomeric yarn support tube and method of making same |
May. 23, 2000 |
| 6059908 |
Method for protecting substrates |
May. 9, 2000 |
| 6053209 |
Process for manufacturing ribbed tubes and ribbed tubes thus manufactured |
Apr. 25, 2000 |
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