Fastener
US8549724B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 18, 2006 |
| Grant date | Oct 8, 2013 |
| Priority date | — |
| Expiry date | Apr 14, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/53
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A fastener for fastening at least two work pieces together comprises a body and a pin. The body has a head, a shaft extending from the head and an open hollow core extending into the shaft. The shaft has a retaining means spaced from the head to accommodate the work pieces. The retaining mechanism has a contracted configuration where it is sized to pass through holes in the work pieces and an expanded configuration where it is expanded in size or spacing such that the shaft is unable to be removed from the holes in the work pieces. The retaining mechanism defines a constriction in the core at which the core has a first width when the retaining mechanism is in its contracted configuration. The pin is locatable in the core. The pin has a least a first portion with an external width greater than the first width of the core. The pin is movable within the core and is arranged to cause the retaining mechanism to change to the expanded configuration as the first portion of the pin moves into contact with the constriction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.