Portable washer cutters
US4773798A · kind A · utility
12Cited by
4References
27Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 5, 1987 |
| Grant date | Sep 27, 1988 |
| Priority date | — |
| Expiry date | Aug 5, 2007 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T408/5628
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
The portable washer cutter of this invention comprises a pair of enclosures adapted to be interconnected and operative to rotate to progressively close the two enclosures together. A cutting knife edge secured in one enclosure progressively engages with each rotation a flat washer blank supported in the other enclosure to produce a desired central cut-out from the washer blank.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.