Fastener apparatus with self-leveling head
US9447814B1 · kind B1 · utility
2Cited by
7References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 24, 2014 |
| Grant date | Sep 20, 2016 |
| Priority date | — |
| Expiry date | Apr 24, 2034 |
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 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.