Self locking internally threaded fastener and apparatus and process for making the same
US6270838A · kind A · utility
10Cited by
11References
11Claims
0Family size
Assignee
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Key dates
| Filing date | Apr 21, 2000 |
| Grant date | Aug 7, 2001 |
| Priority date | — |
| Expiry date | Apr 21, 2020 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB05D2258/02
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method for making a self locking internally threaded fastener and an apparatus for making such fasteners, in which the self locking characteristic is derived from a patch of thermoplastic material having a circumferential extent of less than 360.degree. adhered selectively to at least a portion of the thread defining surface of the fastener.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.