Back-out resistant fastener
US9611882B2 · kind B2 · utility
0Cited by
13References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 9, 2014 |
| Grant date | Apr 4, 2017 |
| Priority date | — |
| Expiry date | Apr 18, 2035 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16B43/001
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A fastener is provided having a cylindrical shaft with a generally constant diameter located between a head and a tapered point. The fastener has a thread integrally extending from the shaft and extending along a portion of a length thereof that terminates at an end of the shaft proximate the head with a back-out discontinuity. At least one ring integrally extends from the shaft in an area of the shaft between the back-out discontinuity and the head. The at least one ring has an outside diameter that is less than an outside diameter of the thread.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.