Multigrip fastener
US4342529A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jan 14, 1981 |
| Grant date | Aug 3, 1982 |
| Priority date | — |
| Expiry date | Jan 14, 2001 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16B19/05
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A unique two-part fastener consisting of a pin and a tubular member adapted to be set by a tool having a set of jaws to grip the pin and a swaging anvil for swaging the collar onto the pin and in which the pin has a set of substantially identical annular grooves formed along a major portion thereof and in which the set of annular grooves provide combination grooves some of which function as locking grooves and a selected one which functions as a breakneck groove and in one form the fastener including a second set of grooves of a different construction which function only as pull grooves; the first set of grooves provide a unique relationship with a swaged portion of the tubular member so that as the fastener is set, the pin will break off in a preselected one of the combination grooves within the outer end of the tubular member; the second set of grooves provide a construction which is compatible with a known type jaw structure on the tool.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.