Cutting tool for a large diameter travelling pipe cutter
AssigneeIllinois Tool Works Inc.
InventorsKenneth R. Pierce, Alexander S. Giberman, Michael W. Gearhart
Life of this patent
Estimating the term…
Abstract
A cutting tool to cut a hollow vessel includes a conical member, a plurality of grooves, and a plurality of cutting members. The plurality of grooves are disposed in a semi-helix around an outer conical surface of the conical member. Each of the plurality of cutting members is disposed in fixed position within one of the plurality of grooves at a non-zero angle relative to a vertical axis.
Claims13
A travelling pipe cutter adapted to perform cutting-through or beveling of a hollow vessel while travelling around the hollow vessel, comprising:
- a carriage;
- a cutting tool attached to the carriage, the cutting tool adapted to perform cutting-through or beveling of the hollow vessel while travelling around the hollow vessel;
- the cutting tool comprising:
- a member;
- a plurality of grooves disposed in a semi-helix around an outer surface of the member;
- and
- a plurality of cutting members, wherein each of the cutting members is disposed in fixed position within one of the plurality of grooves at a non-zero angle relative to a vertical axis.
A method of cutting a hollow vessel comprising:
- cutting a hollow vessel using a cutting tool of a pipe machining apparatus, the cutting tool comprising:
- a member;
- a plurality of grooves disposed in a semi-helix around an outer surface of the member;
- and a plurality of cutting members, wherein each of the cutting members is disposed at a non-zero angle relative to a vertical axis in fixed position within one of the plurality of grooves;
- and
- moving cut-material of the hollow vessel from the cutting members into and out of the plurality of grooves;
- wherein:
- (1) the member comprises a conical member;
- (2) the cutting the hollow vessel comprises the cutting tool being carried around the hollow vessel by an attached carriage while cutting-through or beveling the hollow vessel;
- or (3) the method further comprises continually providing an equal load on the cutting tool as the cutting members advance into the hollow vessel.
Dependencies are inferred from the claim text.