Expansion bolt assembly
US4730966A · kind A · utility
10Cited by
6References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 14, 1986 |
| Grant date | Mar 15, 1988 |
| Priority date | — |
| Expiry date | Jul 14, 2006 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16B13/065
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An expansion bolt assembly includes an anchor bolt with a conically shaped expansion head at one end arranged to be drawn into an expansion sleeve. At the opposite end, the anchor bolt forms a plurality of axially extending projections protruding radially outwardly from the anchor bolt shank. The axially extending projections are spaced circumferentially apart around the anchor bolt and the outer surface of the projections are threaded to receive a nut. The anchor bolt can be produced in an extrusion process with great material economy.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.