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Class Information
Number: 285/416
Name: Pipe joints or couplings > Flange > Fused
Description: Devices wherein a weld is used to attach the flange to the pipe.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7513538 |
Device for connecting two metal pipes |
Apr. 7, 2009 |
| 7390375 |
Method and a device for connecting a plastic conduit and a plastic socket |
Jun. 24, 2008 |
| 6895670 |
Method of attaching a self-aligning flange to a vacuum pipe and forming a large diameter extruded pipe |
May. 24, 2005 |
| 6863315 |
Flanged member with barrier layer |
Mar. 8, 2005 |
| 6860526 |
Coupling structure for a hollow body |
Mar. 1, 2005 |
| 6766570 |
Coupling units connecting tubular members having a hardened inner wall for carrying mechanically abrasive fluid concrete |
Jul. 27, 2004 |
| 6672630 |
Flange for connection between an axial compressor and high-pressure rotor disc unit in a gas turbine |
Jan. 6, 2004 |
| 6543811 |
Pipe flange assembly |
Apr. 8, 2003 |
| 6520213 |
Arcuate double-layer pipe, and method of assembling an arcuate double-layer pipe |
Feb. 18, 2003 |
| 6283157 |
Sweat flange, piping system and method of use |
Sep. 4, 2001 |
| 6270045 |
Perimeter weld flanges |
Aug. 7, 2001 |
| 6254142 |
Exhaust manifold flange for an internal combustion engine |
Jul. 3, 2001 |
| 6240966 |
Pipe for conveying solids |
Jun. 5, 2001 |
| 6176525 |
Thermoplastic liner and a flange on a tubular member lined with a thermoplastic liner and a flange lined tubular member |
Jan. 23, 2001 |
| 6086109 |
Conveying pipe |
Jul. 11, 2000 |
| 6070912 |
Dual seal and connection |
Jun. 6, 2000 |
| 6019398 |
Tapping sleeve with a gland |
Feb. 1, 2000 |
| 5967566 |
Light-weight, slip-on pipe flange |
Oct. 19, 1999 |
| 5947528 |
Pipe flange assembly |
Sep. 7, 1999 |
| 5813437 |
Pipe for conveying solids |
Sep. 29, 1998 |
| 5769467 |
Pipe couplings for misaligned or out-of-round pipes and expanding/contracting pipes |
Jun. 23, 1998 |
| 5700038 |
Pipe connection assembly |
Dec. 23, 1997 |
| 5690368 |
Ultraseal sump adaptors models 54 and 541 |
Nov. 25, 1997 |
| 5671956 |
Vacuum system coupler |
Sep. 30, 1997 |
| 5662361 |
Conical wedge connecting joint |
Sep. 2, 1997 |
| 5511828 |
Flexible joint for automobile exhaust pipe |
Apr. 30, 1996 |
| 5484172 |
Pipe connection |
Jan. 16, 1996 |
| 5413389 |
Cast convoluted piping flange |
May. 9, 1995 |
| 5275440 |
Double-layer pipe bend with intermediate support layer |
Jan. 4, 1994 |
| 5248080 |
Articles and methods for joining tubular articles to one another |
Sep. 28, 1993 |
| 5116085 |
Sealed expansion joint |
May. 26, 1992 |
| 5078435 |
Self-aligned flanged coupling |
Jan. 7, 1992 |
| 5071174 |
Brazed tubing connector construction and method |
Dec. 10, 1991 |
| 5044670 |
Pipe for conveying solid matter |
Sep. 3, 1991 |
| H945 |
Connecting apparatus for two tubular members |
Aug. 6, 1991 |
| 4948177 |
Laminated fitting for heat exchanger |
Aug. 14, 1990 |
| 4907829 |
Pipe joint assembly |
Mar. 13, 1990 |
| 4832383 |
Pipe and flange assembly |
May. 23, 1989 |
| 4825942 |
Heat exchanger with novel seal for tube sheet |
May. 2, 1989 |
| 4826220 |
Means for connecting successive sections of tubular elements |
May. 2, 1989 |
| 4810011 |
Structure in which a small-diameter thin metal tube is fixed at one end to a flange coupling |
Mar. 7, 1989 |
| 4784413 |
End of thin-walled metal tubing of small diameter coupled to flange |
Nov. 15, 1988 |
| 4678211 |
Joints formed with welded flange pipes |
Jul. 7, 1987 |
| 4634150 |
Conduit arrangement for interconnecting stationary conduit extensions |
Jan. 6, 1987 |
| 4556240 |
Corrosion-resistant, double-wall pipe structures |
Dec. 3, 1985 |
| 4545605 |
Welded tube and flange, e.g., for exhaust manifold |
Oct. 8, 1985 |
| 4503594 |
Method for fabricating an orifice fitting for a gas pressure differential-measuring system |
Mar. 12, 1985 |
| 4487438 |
Flexible flange joint coupler |
Dec. 11, 1984 |
| 4484771 |
Flange for connecting pipes |
Nov. 27, 1984 |
| 4458924 |
Bimetal flange connector |
Jul. 10, 1984 |
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