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Class Information
Number: 266/56
Name: Metallurgical apparatus > Means for cutting solid metal with heat, e.g., blowpipes > With means for cutting tubular workpiece > Having means to circumrotate torch about workpiece
Description: Device including means to propel the severing means over and around the peripheral surface of the tubular article.

Patents under this class:

Patent Number Title Of Patent Date Issued
7309464 Steerable magnetic wheel carriage Dec. 18, 2007
6696012 Ring gear mounted rack adjustable torch arm carriage assembly with out-of-round capability Feb. 24, 2004
5853655 Magnetic wheel guided carriage with positioning arm Dec. 29, 1998
5655209 Multilayer ceramic substrates having internal capacitor, and process for producing same Aug. 5, 1997
4757977 Universal chain guide for orbital pipe machines Jul. 19, 1988
4716271 Apparatus for positioning a tool with respect to a cylindrical work piece Dec. 29, 1987
4570542 Ribbon rail systems Feb. 18, 1986
4490909 Travelling pipe cutter Jan. 1, 1985
4469310 Automatic centering pipe beveling machine Sep. 4, 1984
4460162 Torch guiding system for flame cutting of pipe Jul. 17, 1984
4440383 Pipe cutting apparatus Apr. 3, 1984
4414041 Guide system for flame cutting of pipe Nov. 8, 1983
4405384 Method and apparatus for salvaging large pipe elbows Sep. 20, 1983
4399197 Cutting pipe with a cutting torch Aug. 16, 1983
4377276 Self-propelling bevel fusion-cutting machine Mar. 22, 1983
4368876 Self-propelling bevel fusion-cutting machine Jan. 18, 1983
4357002 Pipe cutting machine Nov. 2, 1982
4345745 Pipe cutter for end cuts of tubular material Aug. 24, 1982
4330076 Method for replacing bolster rings May. 18, 1982
4312498 Fixture for cutting tube turns Jan. 26, 1982
4260869 Traveling welding carriage Apr. 7, 1981
4243868 Orbital arc-welding apparatus of split construction Jan. 6, 1981
4216945 Apparatus for automatically controlling the cutting of pipes, plates and the like Aug. 12, 1980
4202535 Control device for cutting torch May. 13, 1980
4143862 Apparatus for cutting pipes, plates and the like Mar. 13, 1979
4091514 Subsea machine tool May. 30, 1978
4053145 Cutting torch guide Oct. 11, 1977
4051342 Continuous welder Sep. 27, 1977
4007705 Apparatus for treating a cylindrical object Feb. 15, 1977
3975003 Torch type pipe cutter Aug. 17, 1976

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