Spherical bearing link
US5005991A · kind A · utility
10Cited by
6References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 4, 1987 |
| Grant date | Apr 9, 1991 |
| Priority date | — |
| Expiry date | Dec 4, 2007 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16C43/02
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A truncated spherical ball enters a cavity in a link using an entry slot in the link away from the end of the link and axially extending toward the link arm. Passage of the rotated ball through the entry slot is prevented by excess thickness of the ball relative to slot width until the link is expanded by heating. Full bearing surface exists at the end and sides of the link cavity and bearing surfaces are not contacted while forcing a fit. The ball is secure from inadvertent removal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.