Pin and process for its manufacture
US4544312A · kind A · utility
61Cited by
5References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 24, 1984 |
| Grant date | Oct 1, 1985 |
| Priority date | — |
| Expiry date | Dec 24, 2004 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16B39/026
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A threaded pin has flutes along the threads formed by roll-forming threads over a preformed section having either flat sides or dished sides. The major diameter of the threads lies along ridge crests bordering the flutes, and the minor diameter of the threads lies at the base of the flutes. The threads extend along the major diameter in each of the ridge crests for a distance on an order of magnitude of the distance across the mouth of each flute. The preformed section is formed by extrusion. The flutes provide space for material from a threaded collar forced into them to provide a thread lock.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.