Double-ended stud with combined driving and locking means
US4223585A · kind A · utility
48Cited by
5References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 3, 1978 |
| Grant date | Sep 23, 1980 |
| Priority date | — |
| Expiry date | Jul 3, 1998 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S411/911
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An integral stud member having shank portions extending from either side of a radially extending flange. A first shank portion including thread convolutions with means to form mating internal threads in an associated workpiece. The surface of the flange opposing the first shank including generally radially extending rib-like surfaces which serve as the means to drive the fastener in place. The rib structures are configured to permit a driver to softly engage the flange and to lock the fastener from backing out of the workpiece after a secondary work surface has been clamped over the flange.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.