Pull-to-set anchoring device
US4287807A · kind A · utility
284Cited by
6References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 1, 1979 |
| Grant date | Sep 8, 1981 |
| Priority date | — |
| Expiry date | Jun 1, 1999 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16B13/065
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
In a pull-to-set anchoring device for cementatious material in which a nut is disposed upon one end of a stem and a head is formed on the other and a band is disposed on the stem intermediate the head and the nut, the band being arranged to slide into engagement with the cementatious material when the nut is twisted, the improvement including forming a groove on the outer surface of the head and disposing a resilient ring in the groove whereby the band is engaged and expanded to improve the holding characteristics of the device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.