High performance thread rolling screw/bolt for use in an unthreaded nut anchor
US9404524B2 · kind B2 · utility
5Cited by
18References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 16, 2014 |
| Grant date | Aug 2, 2016 |
| Priority date | — |
| Expiry date | Aug 24, 2034 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16B25/0047
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
The present invention provides a screw/bolt thread profile geometry that is particularly suited to forming a mating nut thread when the screw is inserted in to a plain diameter hole, in the anchor and rotated in a manner by which the thread helix angle will cause the relative axial forward movement, of the screw/bolt, into the anchor. This rotation and relative axial movement will be the prime mover in developing the nut thread that has mating contact with the screw/bolt thread.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.