Chip break bolt head
US11384783B2 · kind B2 · utility
0Cited by
14References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 26, 2018 |
| Grant date | Jul 12, 2022 |
| Priority date | — |
| Expiry date | Feb 17, 2039 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16B19/109
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
Two piece tack rivets and method of forming holes for permanent fasteners. The tack rivets have a stem with a head on one end and a grooved region adjacent the other end, and a locking collar for fitting over the grooved region of the stem for deforming into the grooved region of the stem on applying a setting force between the locking collar and the stem. The head includes cutouts formed therein. The cutouts prevent the head from forming large chips or strips when drilled.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.