Spring fastener with highly improved removal to insertion ratio
US7849567B2 · kind B2 · utility
7Cited by
28References
26Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 31, 2006 |
| Grant date | Dec 14, 2010 |
| Priority date | — |
| Expiry date | May 22, 2027 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T24/44026
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A fastener comprises two engagement springs on opposite sides of the fastener. Each engagement spring has an elongated rib. The elongated ribs may have a substantially rectangular shape, or any suitable shape, and they may protrude away from the opposite side of the fastener. Additionally, the elongated ribs may have same or different slopes at each end of the ribs. According to one embodiment, the elongated rib increases the removal to insertion force ratio as compared to such ratio when the engagement springs do not have the elongated rib.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.