US Patent: 4,720,219
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| Reboring Tool
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Patentees:
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| Steven J. Masonek (exact or similar names) - Chico, CA |
| Frederick N. Rabo (exact or similar names) - Durham, CA |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Apr. 09, 1987 |
| Granted: |
Jan. 19, 1988 |
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Joel Havens
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Description: |
| Abstract
The invention provides a specialty tool useful for cleaning out broken off or cut off plastic pipe and glue in plastic fittings and plastic couplers. An arbor for use with a manual or electrical operated drill is provided with a smooth portion and a threaded portion. The threaded portion terminates in a screw head. Positioned on the arbor adjacent the screw head is an internal guide disc sized to fit inside the broken off or cut off plastic pipe to be removed from the plastic fitting or coupler. A circular cutting head having sharpened protrusions along the circumference is positioned next to the internal guide disc. A retaining nut slipped down over the smooth arbor shaft is tightened down against the circular cutter and retains both the cutter and the internal guide disc firmly on the arbor shaft. The assembled device is useful for the removal of broken off or cut off plastic pipe remaining in an otherwise useable plastic fitting or coupling.
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