Internal cutter for trimming plastic pipe
US4177558A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 3, 1978 |
| Grant date | Dec 11, 1979 |
| Priority date | — |
| Expiry date | Mar 3, 1998 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23D21/145
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A cutter for trimming plastic pipe which has been roughed in with an end projecting through an opening in a floor so that the trimmed end is in fixed relation, above or below, the surface of the floor. The cutter comprises a housing with its lower end riding on the surface of the floor, an internal saw with its cutting edge in a plane parallel to the surface of the floor received within the pipe end adjacent one side of the pipe and vertically adjustable to establish the level of cutting, and internal guide fingers exerting a thrust on the side of the pipe opposite the saw and adjustable to move the housing sufficiently to force the saw through the wall of the pipe end after which the fingers guide further rotation of the housing about the axis of the pipe end to complete the cut.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.