Fastener apparatus with self-leveling head
US8708630B1 · kind B1 · utility
4Cited by
9References
10Claims
0Family size
Inventors
Key dates
| Filing date | Mar 9, 2012 |
| Grant date | Apr 29, 2014 |
| Priority date | — |
| Expiry date | May 20, 2032 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16B43/001
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
Fastener apparatus including a self-adjusting and automatically self-leveling head separate from a threaded shank portion. An embodiment self-leveling head portion defines an annular conical recess and lip portion sized to receive a seal. A threaded shank resides within an annular cup center of the self-leveling head and has a thread-free portion seated by the compressed seal creating a water tight seal. Embodiments for sheet metal screw and bolt fasteners not requiring seals are disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.