Screw guide device with drill bit/screw bit and counter sink/drill stop means
US6520509B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 11, 2000 |
| Grant date | Feb 18, 2003 |
| Priority date | — |
| Expiry date | Oct 2, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T408/95
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A holder for holding a tool bit having an elongated connector means with a first end and a second end. The elongated connector means has a central longitudinal hole, of a cross-section corresponding to the cross-section of a mounting portion of the tool bit, at the first end, and a tool mount at the second end, and where the elongated connector means has a first circumferential groove adjacent the second end and a second circumferential groove adjacent the first end. A first sleeve is arranged to reciprocally slide over the connector between a first end position and a second end position, where the first sleeve has a third end facing the tool bit and a fourth end facing the hand tool. The first sleeve has an inwards facing annular ridge arranged at the fourth end of the first sleeve, so that the annular ridge is seated in the first circumferential groove when the sleeve is in the first end position, and the annular ridge is seated in the second circumferential groove when the sleeve is in the second end position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.