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Class Information
Number: 30/100
Name: Cutlery > Pipe and rod cutters > Rotary > External > Pipe- or rod-encircling > Chain link type
Description: Cutters in which the pipe or rod encircling structure is in the form of a plurality of chain-like links.

Patents under this class:

Patent Number Title Of Patent Date Issued
8225511 Portable direct action brittle pipe/soil pipe cutter Jul. 24, 2012
7478480 Tool for snap-cutting brittle pipe Jan. 20, 2009
6141876 Soil pipe cutter Nov. 7, 2000
6122827 Hydraulic pipe cutter Sep. 26, 2000
5621973 Lockable folding knife with rollover blade selection Apr. 22, 1997
5461955 Device for cutting pipe Oct. 31, 1995
5146469 Method and means for continuous production of carbon bodies Sep. 8, 1992
5086961 Pipe severing method and apparatus Feb. 11, 1992
4763413 Chain tube cutter Aug. 16, 1988
4663844 Device for cutting an electrode casing May. 12, 1987
4535924 Apparatus for supporting a pipe and pipe snapping tool Aug. 20, 1985
4370995 Method and apparatus for prenotching a pipeline Feb. 1, 1983
4271591 Pipe-cutter with interchangeable chains Jun. 9, 1981
3943626 Pipe cutter Mar. 16, 1976

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