Fastener element
US4653244A · kind A · utility
105Cited by
8References
8Claims
0Family size
Inventor
Key dates
| Filing date | Jan 16, 1986 |
| Grant date | Mar 31, 1987 |
| Priority date | — |
| Expiry date | Jan 16, 2006 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16B35/048
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A fastener for use in securing wallboard such as drywall to a supporting structure includes a shank having a bugle head at one end and a tapered point at an opposite end, an annular ring flange and anti-clockwise threads disposed on the shank adjacent the head portion to auger and recompact particulate material which exhausts from the tapping threads during insertion of the fastener, and to tuck the outer sheeting layer evenly beneath the bugle head of the fastener.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.