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US 12,459,145 B2Granted
Cast iron pipe cutter
OwnerScott DenHerder, Marc Lundgreninventors
Life of this patent
Estimating the term…
Abstract
The present invention is a cast iron pipe cutter. The cast iron pipe cutter includes a movable upper cutting tool and a rigid lower cutting tool. The upper cutting tool and lower cutting tool includes multiple cutting disc spaced an arc length apart. As the upper cutting tool is advanced downward by a hydraulic press, the cutting discs apply increasing pressure to the outer surface of a cast iron pipe until each cutting discs in the upper cutting tool and the lower cutting tool creates a fracture in the cast iron pipe. The multiple fractures created by the cutting discs amalgamate into a single fracture and the cast iron pipe is cut almost instantaneously.
Claims16
A pipe cutter compromising:
- a movable upper cutting tool positioned above a stationary lower cutting tool, the movable upper cutting tool in axial alignment with the stationary lower cutting tool along a first axis, wherein the movable upper cutting tool and the stationary lower cutting tool are configured to receive there between a length of a pipe disposed along a second axis normal to the first axis, wherein the upper cutting tool is restrained by an upper pressure plate guide to translate along the first axis towards the stationary lower cutting tool and complete a cutting of the pipe without any rotation of the movable upper cutting tool about the second axis and without any rotation of the pipe with respect to the movable upper cutting tool;
- a hydraulic press for delivering a hydraulic fluid under pressure to translate the upper movable upper cutting tool along the first axis;
- and
- an upper pressure plate disposed between the hydraulic press and the movable upper cutting tool, wherein the upper pressure plate receives a pressure created by the hydraulic press at a single point and applies the pressure at three evenly spaced points on the movable upper cutting tool.
1 more element
A pipe cutter compromising:
- a movable upper cutting tool positioned above a stationary lower cutting tool, the movable upper cutting tool in axial alignment with the stationary lower cutting tool along a first axis, wherein the movable upper cutting tool and the stationary lower cutting tool are configured to receive there between a length of a pipe disposed along a second axis normal to the first axis, wherein the upper cutting tool is restrained by an upper pressure plate guide to translate along the first axis towards the stationary lower cutting tool and complete a cutting of the pipe without any rotation of the movable upper cutting tool about the second axis and without any rotation of the pipe with respect to the movable upper cutting tool, wherein the movable upper cutting tool and the stationary lower cutting tool are manually removable from the pipe cutter;
- a hydraulic press for delivering a hydraulic fluid under pressure to translate the movable upper cutting tool toward the stationary lower cutting tool;
- and
- a plurality of cutting discs connected to the moveable upper cutting tool and a plurality of cutting discs connected to the stationary lower cutting tool.
1 more element
A pipe cutter compromising:
- a movable upper cutting tool positioned above a stationary lower cutting tool the movable upper cutting tool in axial alignment with the stationary lower cutting tool along a first axis, wherein the movable upper cutting tool and the stationary lower cutting tool are configured to receive there between a length of a pipe disposed along a second axis normal to the first axis, wherein the upper cutting tool is restrained by an upper pressure plate guide to translate along the first axis towards the stationary lower cutting tool and complete a cutting of the pipe without any rotation of the movable upper cutting tool about the second axis and without any rotation of the pipe with respect to the movable upper cutting tool;
- a hydraulic press for delivering a hydraulic fluid under pressure to move the movable upper cutting tool toward the stationary lower cutting tool;
- a plurality of cutting discs connected to the moveable upper cutting tool at an upper pressure plate and to the lower cutting tool at a lower pressure plate and a plurality of cutting discs connected to the stationary lower cutting tool;
- a feeder rack for feeding a cast iron pipe to be cut;
- and
- a collection tray to receive a cut section of the cast iron pipe.
3 more elements
Dependencies are inferred from the claim text.