Cutting by use of rotating axially moving tool – With work-engaging structure other than tool or tool-support – Frictionally engaging sides of opening in work
Patent
1997-09-24
1999-09-07
Bishop, Steven C.
Cutting by use of rotating axially moving tool
With work-engaging structure other than tool or tool-support
Frictionally engaging sides of opening in work
408201, 408229, B23B 516, B23B 5100
Patent
active
059476559
ABSTRACT:
A rotary pipe cutting apparatus for removing sections of broken pipe from the bore of an outer pipe. The invention includes a cylindrical body with a longitudinal slot that is angularly offset from the rotational axis of the body and which is tapered in depth and width from top to bottom. A blade is included on the body adjacent the slot and the lower end of the body, with the blade having cutting edges which extend both downward and radially outward from the body. A detachable and interchangeable guide member is included on the lower end of the body, and a stopping member is included on the upper end of the body. A shank on the upper end of the body allows attachment of the apparatus to a rotary power tool.
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Bishop Steven C.
O'Banion John P.
LandOfFree
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