Optimized fastener construction system and method
US4472096A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 14, 1981 |
| Grant date | Sep 18, 1984 |
| Priority date | — |
| Expiry date | Apr 14, 2001 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16B19/05
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An optimized two piece fastener system and a related method for providing an optimized fastening system including a pin member and a collar having an optimized strength to weight ratio with the materials of the pin member and collar having a predetermined tensile strength ratio, the collar having a preselected excess volume to provide a desired `overpacking` condition, the collar being of size whereby after swage it will define a minimum wall thickness whereby failure can incipiently occur in shear and/or compression and with a pull type fastener providing a breakneck groove with a preselected stress concentration factor whereby the fastener system can be set on workpieces having a collar engaging surface from 0.degree. to 7.degree. relative to a plane normal to the pin axis.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.