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Class Information
Number: 228/50
Name: Metal fusion bonding > Seam backup means
Description: Device comprising a tangible instrumentality having a surface portion designed and intended to engage directly the surface area of the work or material being fused, on the side of the work opposite to the side which receives energy for fusion-bonding, for the purpose of reacting against such energy.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7556188 |
Clamping device for weld seam-backing member |
Jul. 7, 2009 |
| 7410087 |
Welding backup systems for heat-sink or purge purposes |
Aug. 12, 2008 |
| 7028881 |
Method for providing removable weld backing |
Apr. 18, 2006 |
| 6866179 |
Detachable welding tab assembly |
Mar. 15, 2005 |
| 6719186 |
Method and apparatus for end-to-end welding of lined pipe |
Apr. 13, 2004 |
| 6706992 |
Welding apparatus and method for welding overlapping coated sheets |
Mar. 16, 2004 |
| 6398100 |
Back-up clamp |
Jun. 4, 2002 |
| 6161750 |
Weld tab |
Dec. 19, 2000 |
| 6059320 |
Compressible pipe spacer used in welding |
May. 9, 2000 |
| 5954261 |
Welding mold and method |
Sep. 21, 1999 |
| 5944247 |
Protective device for seam being welded |
Aug. 31, 1999 |
| 5915737 |
Compressible pipe spacer used in welding |
Jun. 29, 1999 |
| 5769307 |
Iron-type golf club head and production method therefor |
Jun. 23, 1998 |
| 5769306 |
Weld root closure method for friction stir welds |
Jun. 23, 1998 |
| 5726408 |
Weld backing ring for nozzle repairs |
Mar. 10, 1998 |
| 5624067 |
Method and apparatus for weld joining pipe sections |
Apr. 29, 1997 |
| 5597108 |
Plug style pipe line-up clamp with copper back-up shoes |
Jan. 28, 1997 |
| 5590829 |
Movable backing system |
Jan. 7, 1997 |
| 5566984 |
Cylindrical corrosion barrier for pipe connections |
Oct. 22, 1996 |
| 5536050 |
Connection for fabricating mandrel bar from used segments |
Jul. 16, 1996 |
| 5511721 |
Braze blocking insert for liquid phase brazing operations |
Apr. 30, 1996 |
| 5472134 |
Weld joint container |
Dec. 5, 1995 |
| 5455079 |
Surface hardening of titanium alloys with melting depth controlled by heat sink |
Oct. 3, 1995 |
| 5450996 |
Seamer with improved back-up assembly |
Sep. 19, 1995 |
| 5449107 |
Weld backing |
Sep. 12, 1995 |
| 5395142 |
Welding joint and backing sleeve therefore |
Mar. 7, 1995 |
| 5356067 |
Internal line up clamp |
Oct. 18, 1994 |
| 5323950 |
Flexible, adjustable welding backup mandrel |
Jun. 28, 1994 |
| 5158225 |
Backing tool for welding |
Oct. 27, 1992 |
| 5137202 |
Pipe joint lead stop and method |
Aug. 11, 1992 |
| 5110031 |
Weld suporting ring for pipes |
May. 5, 1992 |
| 5104030 |
Inline splicing of brittle superconductors |
Apr. 14, 1992 |
| 5082166 |
Connector beam joining method |
Jan. 21, 1992 |
| 5024371 |
Welding process |
Jun. 18, 1991 |
| 4842186 |
Method and apparatus for building a workpiece by deposit welding |
Jun. 27, 1989 |
| 4775092 |
Method and apparatus for building a workpiece by deposit welding |
Oct. 4, 1988 |
| 4762265 |
Plug for kinetic bonding procedure |
Aug. 9, 1988 |
| 4759981 |
Welding backup tape assembly |
Jul. 26, 1988 |
| 4741469 |
Clamping ring attachable with split clamping means |
May. 3, 1988 |
| 4721241 |
Welding apparatus assembled together with grinding device |
Jan. 26, 1988 |
| 4691092 |
Method for welding two parts together employing a concentrated energy beam and protective member |
Sep. 1, 1987 |
| 4682724 |
Welding apparatus |
Jul. 28, 1987 |
| 4671447 |
Welding ring arrangement |
Jun. 9, 1987 |
| 4648544 |
Internal chuck for butt welding two tubes |
Mar. 10, 1987 |
| 4611830 |
Partially consumable spacer chill rings and their use in welding pipe joints |
Sep. 16, 1986 |
| 4556162 |
Weld backup mechanism for internal pipe welding apparatus |
Dec. 3, 1985 |
| 4487356 |
Device having expandable mandrel for making nuclear fuel element storage tubes |
Dec. 11, 1984 |
| 4465220 |
Device for supporting weld underbead |
Aug. 14, 1984 |
| 4363954 |
Device for the back support of the first run weld pool in the automatic butt-welding of pipes |
Dec. 14, 1982 |
| 4360141 |
Holder for welding seam back-up tape |
Nov. 23, 1982 |
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