Masonry screw anchor
US5061136A · kind A · utility
31Cited by
4References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 3, 1990 |
| Grant date | Oct 29, 1991 |
| Priority date | — |
| Expiry date | Oct 3, 2010 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16B25/0068
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A masonry screw anchor having two different constant diameter shank portions connected via a taper. Each portion has a set of constant diameter threads and intermediate smaller diameter protrusions with the threads and protrusions on the larger diameter shank portion being larger in diameter than the diameter of the threads and protrusions on the smaller diameter portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.