Planetary tubing cutter

Details Planetary tubing cutter Planetary tubing cutter

2007-10-02

2007-10-02

Ashley, Boyer D. (Department: 3724)

Cutting

Processes

C083S876000, C083S597000, C083S607000, C083S647500, C083S651000, C083S924000, C083S946000, C030S092000, C030S097000, C030S101000, C082S001110, C082S047000, C082S084000, C082S085000, C053S296000, C053S389300

Reexamination Certificate

active

10890699

ABSTRACT:
The planetary tubing cutter of the invention provides a gearing assembly having a pair of ring gears and a number of pinions with a blade affixed to each pinion. The ring gears are parallel to one another and are individually driven. The pinions are rotatably mounted to a side surface of one ring gear and engage a sun gear assembled to the other ring gear. When the ring gears rotate at the same speed, the pinions and blades do not revolve around their respective axes, and when one ring gear rotates at a speed different from the other ring gear, the pinions and blades revolve about their respective axes, intercepting and cutting a tube passing through an axial passage through the ring gears.

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patent: 2003/0084772 (2003-05-01), Shen
patent: 2006/0090624 (2006-05-01), Chen

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