Torque screw fastener
US6238155A · kind A · utility
34Cited by
71References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 18, 1998 |
| Grant date | May 29, 2001 |
| Priority date | — |
| Expiry date | Jun 18, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S411/97
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A torque screw having a screw with a head and a threaded shaft, a knob having a central longitudinal axis coaxial with the screw and a one-directional ratchet disposed between the knob and the screw that engages to allow the screw to be disengaged in a counter-clockwise direction using the knob, and engages when rotated in a clockwise direction to a predetermined torque value. Once that predetermined torque value is reached, the ratchet is caused to slip such that the knob turns relatively freely with respect to the screw.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.