Apparatus for limiting equipment burden when penetrating a mixed or composite material structure including metal utilizing a hammer-drill
US11351666B2 · kind B2 · utility
0Cited by
8References
17Claims
0Family size
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Key dates
| Filing date | Apr 1, 2020 |
| Grant date | Jun 7, 2022 |
| Priority date | — |
| Expiry date | Apr 1, 2040 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB25D2217/0007
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A drill bit in conjunction with a hammer-drill to penetrate composite metal and non-metal structure or structures including, for example, thick metal or rebar encountered during concrete, rock or masonry boring operations without requiring a change in drill equipment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.