Blind fastener
US8777532B2 · kind B2 · utility
0Cited by
19References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 1, 2009 |
| Grant date | Jul 15, 2014 |
| Priority date | — |
| Expiry date | Feb 2, 2031 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16B37/065
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A fastener (2) such as a rivet, and a method of manufacture of such, wherein the fastener (2) is formed with helical (16) and annular grooves on the shell (4), such that when the fastener (2) is installed into a workpiece (24), a bulb (30) having a lobed blindside footprint (36) is produced on the blindside of the workpiece (24), the helical grooves (16) having an increasing depth towards the head end (12) of the shell (4) to promote formation of the bulb (30) initially towards the head end (12).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.