Wrench for rotary tool
US9144846B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 8, 2011 |
| Grant date | Sep 29, 2015 |
| Priority date | — |
| Expiry date | Mar 12, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T279/3451
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A rotary tool includes a housing, a tool holder, and a wrench assembly. The housing includes an end portion having external threads. The tool holder extends from the end portion and includes a fastening member configured for movement between an unclamped position and a clamped position in which the tool holder can engage a tool. The wrench assembly includes a body portion and a wrench member. The body portion includes (i) a plurality of internal threads configured to meshingly engage the external threads and (ii) an opening through which a portion of the tool holder extends when the internal threads are meshingly engaged to the external threads. The wrench member includes a wrench surface configured to engage the fastening member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.