Extraction device and method
US9180528B2 · kind B2 · utility
0Cited by
6References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 26, 2012 |
| Grant date | Nov 10, 2015 |
| Priority date | — |
| Expiry date | Jun 30, 2033 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23B2260/078
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A stuck drill bit having a KCS shank can be removed using an article with a body structure. The body structure has an opening that fits onto the shank, and an inward-facing surface around the opening is at least partially complementary to the surface of the shank. The surfaces engage sufficiently that rotary manual force is transferred from the inward-facing surface to the surface of the shank.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.