Portable rotary machining device
US4369679A · kind A · utility
Inventor
Key dates
| Filing date | Nov 12, 1980 |
| Grant date | Jan 25, 1983 |
| Priority date | — |
| Expiry date | Nov 12, 2000 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T82/2522
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A portable machining device that is particularly useful for removing excess peripheral weld from the flat surface of welded-in valves such as breech lock gate valves. The portable machining device includes a housing, a cutting tool, a vertical feed mechanism, a horizontal feed mechanism, and a rotation drive mechanism. The vertical feed and rotation drive mechanisms have central openings for receiving the upward extending valve stem from the surface to be machined. The base of the housing is ring shaped and includes slots for attachment to the flat surface of the valve. In operation, the cutting tool is rotated and fed vertically and horizontally to machine the excess weld to be flush with the flat surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.