Positive drive mechanism for uniform feed of internal tube cutter
US4841636A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 31, 1987 |
| Grant date | Jun 27, 1989 |
| Priority date | — |
| Expiry date | Aug 31, 2007 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T82/16639
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A positive drive mechanism is provided to operate an internal tube cutter. The tube cutter has a body insertable into a tube to be severed, and a wedge-shaped slide supporting a cutting wheel on a forward portion of the cutter body. The slide and cutting wheel are movable toward and away from the tube. An elongated member is mounted through the cutter body for movement longitudinally thereof in one direction to cause outward radial movement of the slide and advancement of the cutting wheel toward and into contact with the tube to cause severing of the same upon rotation of the cutter body and in an opposite direction to permit inward radial movement of the slide and retraction of the cutting wheel away from and out of contact with the tube. The positive drive mechanism includes a housing rotatably mounting the cutter body, a cutter body drive portion mounted to the housing and drivingly interconnected to the cutter body for rotating or counterrotating the same, and a cutter wheel feed portion engaged with the elongated member of the cutter at a rear portion of the cutter body and operable to intermittently move the elongated member in the one direction toward the slide or permit in…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.