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Class Information
Number: 72/52
Name: Metal deforming > By tool-couple pressing together adjacent surface portions of same work (e.g., tube-seamer) > To form longitudinally-seamed tube > During longitudinal movement of work
Description: Subject matter wherein the work is moved along its length dimensions as the joint is deformed.


Patents under this class:
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Patent Number Title Of Patent Date Issued
7523554 Method of manufacturing a wheel rim Apr. 28, 2009
7231792 Method and device for manufacturing UOE steel pipes Jun. 19, 2007
6840571 Tubular bar with integral rolled locking system and method of making same Jan. 11, 2005
6705143 Method of manufacturing loading plane border frame tubes for chairs Mar. 16, 2004
6629632 Apparatus and method for manufacturing hollow shafts Oct. 7, 2003
6425279 Method of manufacturing gas springs Jul. 30, 2002
6351978 Roller mount with three-axis freedom Mar. 5, 2002
6223575 Tube forming machine using three point bending May. 1, 2001
6216940 Pipe forming roll apparatus and method Apr. 17, 2001
6216511 Apparatus and method for smoothing a welded seam of steel pipe Apr. 17, 2001
6212925 Method for roll forming steel pipes, and equipment for same Apr. 10, 2001
6131431 Pipe member, method and apparatus for manufacturing the pipe member Oct. 17, 2000
6041632 Pipe forming roll apparatus and method Mar. 28, 2000
5943892 Method of breakdown-forming electro-unite tubes Aug. 31, 1999
5878614 Finn pass forming device for forming seam welded steel pipes and roller device available for forming seam welded steel pipes of a plurality of sizes Mar. 9, 1999
5875668 Roll forming method for forming flat tube and roll forming apparatus using the same Mar. 2, 1999
5865053 Transition beam forming section for tube mill Feb. 2, 1999
5862694 Tapered tube manufacturing apparatus and process Jan. 26, 1999
5845526 Method for producing pipe having polygon-shaped closed cross-section and device therefor Dec. 8, 1998
5802903 Manufacturing method for angled steel pipes Sep. 8, 1998
5784911 Apparatus for manufacturing a welded pipe Jul. 28, 1998
5673579 Welded steel pipe manufacturing apparatus and method Oct. 7, 1997
5647241 Rotary upper roll selector Jul. 15, 1997
5410901 Method and apparatus for forming overlapped tape May. 2, 1995
5376289 Lubricating oils and greases Dec. 27, 1994
5366137 Method and apparatus for shaping metal sheets into can bodies and feeding the can bodies to a welding station Nov. 22, 1994
5321889 Base drum of electrophotographic photoconductor and method for the preparation thereof Jun. 21, 1994
5301869 Machine for manufacturing welded steel pipes and method for handling the machine Apr. 12, 1994
5271149 Method for producing a co-axial cable Dec. 21, 1993
5222284 Apparatus for making co-axial cable Jun. 29, 1993
5104026 Apparatus for roll-forming an automotive bumper Apr. 14, 1992
5092512 Method of roll-forming an automotive bumper Mar. 3, 1992
5061141 Method and apparatus for producing can bodies Oct. 29, 1991
5018268 Apparatus for forming metal shield from tape May. 28, 1991
5016459 Method and guide roll stand for guiding and shaping strip material in a pipe mill May. 21, 1991
5005395 Method of manufacturing electric welded pipes under hot conditions Apr. 9, 1991
4984357 Method and apparatus for forming metal shield from tape Jan. 15, 1991
4947671 Device for manufacturing conical poles Aug. 14, 1990
4945743 Apparatus for manufacturing electric welded pipes under hot conditions Aug. 7, 1990
4852790 Apparatus and method for continuous manufacture of armored optical fiber cable Aug. 1, 1989
H631 Apparatus for forming a metal sheath around a cable core May. 2, 1989
4796797 Method for making thin-walled metal pipes Jan. 10, 1989
4790623 Optical fiber cable assemblies Dec. 13, 1988
4783981 Apparatus for forming a tube from a metal band Nov. 15, 1988
4776194 Pipe mill Oct. 11, 1988
4770019 Forming roll, forming process and its apparatus in the pipe mill Sep. 13, 1988
4759487 Apparatus for continuous manufacture of armored optical fiber cable Jul. 26, 1988
4747289 Method of forming seam-welded tubes May. 31, 1988
4732026 Method of lap welding eventual can blank consisting of metal sheet or the like Mar. 22, 1988
4716750 Process for obtaining composite hollow members from variegated longitudinal strips, embodied with or without a removable core Jan. 5, 1988

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