Spring-loaded threaded fastener holder
US6857343B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 30, 2003 |
| Grant date | Feb 22, 2005 |
| Priority date | — |
| Expiry date | Sep 30, 2023 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB25B23/101
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A threaded fastener holder holds a screw in place and then automatically disengages from the screw and withdraws axially in the proximal direction to permit the user to continue inserting the screw without interruption. The threaded fastener holder has a shaft having a distal end for selectively engaging with a head of a threaded fastener. An inner sleeve surrounds at least a portion of the shaft, and is axially movable with respect to the shaft. The inner sleeve has a plurality of spring fingers disposed at its distal end, each of which has a distal end that is radially movable so as to be selectively engageable with the head of the threaded fastener. A first end of a spring is fixed with respect to the inner sleeve. The second end of the spring is fixed with respect to the shaft. In the rest position, the distal end of the plurality of spring fingers is axially spaced from the distal end of the shaft.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.