Spring fastener with highly improved removal to insertion ratio
US7428770B2 · kind B2 · utility
22Cited by
53References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 12, 2005 |
| Grant date | Sep 30, 2008 |
| Priority date | — |
| Expiry date | Aug 18, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T24/44026
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A spring fastener, which comprises two engagement springs in opposite sides of the fastener. Each engagement spring has an engagement portion comprising a hindrance portion, which increases considerably the removal to insertion force ratio as compared to such ratio when the engagement portion does not have the hindrance portion, thus permitting very easy insertion into, with considerably more difficult removal of the fastener from the slot of a panel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.