Apparatus and method for grasping a screw beneath the screw head with jaws and for releasing same
US10252404B2 · kind B2 · utility
0Cited by
14References
11Claims
0Family size
Inventor
Key dates
| Filing date | Nov 28, 2016 |
| Grant date | Apr 9, 2019 |
| Priority date | — |
| Expiry date | Mar 18, 2037 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB25B23/101
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A dual chuck device with a shaft grasping assembly and a screw stem grasping assembly each with respective jaws, driving mechanism and sleeve. Upon turning a respective sleeve in one direction or the reverse direction, the respective drive mechanism moves the jaws toward or away from a grasping position. In the grasping position, the screw stem is grasped. When the sleeve is presses against a working surface being penetrated by a driven screw, the driving mechanism moves the jaws in the reverse direction to move them apart to no longer grasp the screw.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.