Hole cutting apparatus utilizing a cylinder saw
US4152090A · kind A · utility
11Cited by
7References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 22, 1977 |
| Grant date | May 1, 1979 |
| Priority date | — |
| Expiry date | Sep 22, 1997 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T408/895
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
An apparatus for cutting a hole through the sidewall of a longitudinally extending pipe is disclosed herein. This apparatus includes a cylinder saw, i.e., a hole saw and a portable jig for supporting and guiding the saw during the hole cutting operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.