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Class Information
Number: 285/424
Name: Pipe joints or couplings > Materials > Sheet
Description: Subject matter which includes material originally in sheet form.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7562912 |
Duct mating assembly |
Jul. 21, 2009 |
| 7490872 |
Corner piece-less duct, method of producing the same, and duct-forming machine |
Feb. 17, 2009 |
| 7393021 |
HVAC duct system |
Jul. 1, 2008 |
| 7393020 |
Connection of two pipes and sealing ring for the connection |
Jul. 1, 2008 |
| 7347224 |
Supply and exhaust pipe |
Mar. 25, 2008 |
| 7344163 |
Trunking sections and coupling therefor |
Mar. 18, 2008 |
| 7234734 |
Integral transverse flanges for a duct connecting system |
Jun. 26, 2007 |
| 7216898 |
Flanged connector for HVAC ducting |
May. 15, 2007 |
| 7195290 |
Apparatus for a fire-rated duct |
Mar. 27, 2007 |
| 7163030 |
Rectangular and square double wall ducting systems |
Jan. 16, 2007 |
| 7100634 |
Liquid collection basin connection assembly |
Sep. 5, 2006 |
| 7073826 |
Butt joint between two pipe segments of sheet metal and process for manufacture thereof |
Jul. 11, 2006 |
| 7059346 |
Liquid collection basin connection assembly |
Jun. 13, 2006 |
| 7029037 |
Apparatus for connecting and sealing duct sections |
Apr. 18, 2006 |
| 7018127 |
Connector for joining two lengths of sheet metal ducting together end-to-end and the two pieces of sheet metal |
Mar. 28, 2006 |
| 6908115 |
Combined register opening cover and register boot frame |
Jun. 21, 2005 |
| 6871879 |
Fan duct assembly |
Mar. 29, 2005 |
| 6832786 |
Tubular member coupling device |
Dec. 21, 2004 |
| 6830065 |
Duct connector apparatus and method |
Dec. 14, 2004 |
| 6811192 |
Apparatus and associated method for joining and sealing conduits |
Nov. 2, 2004 |
| 6810570 |
Method of attaching a connector element to a duct flange |
Nov. 2, 2004 |
| 6796585 |
Bellows for a compensator and compensator pertaining thereto and method for producing bellows |
Sep. 28, 2004 |
| 6766832 |
Transitional telescoping plenum apparatus |
Jul. 27, 2004 |
| 6758502 |
Coupling ring for ventilation ducts, and method of connecting ventilation ducts |
Jul. 6, 2004 |
| 6736406 |
Self-adhesive gasket |
May. 18, 2004 |
| 6709021 |
Tubular member coupling device |
Mar. 23, 2004 |
| 6691473 |
Apparatus and method for sealing a vertical protrusion on a roof |
Feb. 17, 2004 |
| 6588802 |
Two-part, clamp-connected chimney flue tee |
Jul. 8, 2003 |
| 6561553 |
Angle plate fastening method and apparatus for air duct flange connectors |
May. 13, 2003 |
| 6557901 |
Device for joining two tubular elements with semitoric flange extensions |
May. 6, 2003 |
| 6550823 |
Flange connection for pipes, in particular, air pipes |
Apr. 22, 2003 |
| 6547287 |
Duct connecting system having integral transverse flanges |
Apr. 15, 2003 |
| 6543489 |
Unitary reduction duct |
Apr. 8, 2003 |
| 6540266 |
Spin forming a tubular workpiece to form a radial flange on a tubular flange and a thick rim on the radial flange |
Apr. 1, 2003 |
| 6505864 |
Fabricated oval duct connector |
Jan. 14, 2003 |
| 6502716 |
Duct corner dispenser and method of dispensing duct corners |
Jan. 7, 2003 |
| 6474697 |
Exhaust elbow |
Nov. 5, 2002 |
| 6471256 |
Companion duct flanges |
Oct. 29, 2002 |
| 6431609 |
Pipe connection for ventilating duct system |
Aug. 13, 2002 |
| 6428056 |
Method and apparatus for stacking ankle plates to permit free, sliding, lateral displacement of plates |
Aug. 6, 2002 |
| 6412519 |
Duct connecting system having double walled transverse flanges |
Jul. 2, 2002 |
| 6364374 |
Methods and devices for joining panels |
Apr. 2, 2002 |
| 6254140 |
Segmented flange including a shim |
Jul. 3, 2001 |
| 6244633 |
Self-sealing collar for use in heating and air conditioning systems |
Jun. 12, 2001 |
| 6231704 |
Apparatus for on-site installation of air duct system |
May. 15, 2001 |
| 6213522 |
Device for securing adjacent segments of fibrous glass duct work and the like and a system including said device |
Apr. 10, 2001 |
| 6206432 |
Ball-lock-type quick-acting connector |
Mar. 27, 2001 |
| 6203074 |
Duct system and method |
Mar. 20, 2001 |
| 6199921 |
Pipe lap joint with bridged slot |
Mar. 13, 2001 |
| 6123369 |
Pipe lap joint and methods |
Sep. 26, 2000 |
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