Cutlery – Pipe and rod cutters – Rotary
Patent
1990-11-23
1992-02-18
Watts, Douglas D.
Cutlery
Pipe and rod cutters
Rotary
30 94, 30 95, 30101, B26D 316, B26D 104, B23D 2108, B23D 2106
Patent
active
050881965
ABSTRACT:
A pipe cutter is disclosed in which a housing carries a disk which is rotated selectively in a forward direction or in a reverse direction by a power drive. The disk has a pipe receiving slot extending to the central axis of rotation of the disk for receiving a pipe to be cut. A cutter blade and rotatable roller are disposed on the disk in symmetrical locations about the central axis of rotation, the cutter blade being adapted to move linearly into and out of contact with the pipe which is inserted into the receiving slot. The roller, which preferably is a pair of spaced rollers, is engageable with the outer peripheral surface of the pipe at a location generally opposite to the location of the cutter. A holder for supporting the cutter blade is mounted on the disk for rotation therewith about the central axis of rotation and is also mounted for linear motion toward and away from the central axis of rotation. A rotating mechanism engages the peripheral edge of the housing around the central axis of rotation and in response to rotation of the disk, is rotated about its own axis. A worm mechanism is connected to be driven by the rotating mechanism. A rotational motion to linear motion converting mechanism is connected directly with the worm mechanism and converts its rotational motion to linear motion to drive the holder to thereby move the cutter blade into and out of contact with the pipe.
REFERENCES:
patent: 4802278 (1989-02-01), VanderPol et al.
patent: 4831732 (1989-05-01), Garton
patent: 4890385 (1990-01-01), VanderPol et al.
Heyrana Sr. Paul M.
Nitto Kohki Co. Ltd.
Watts Douglas D.
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