Bushing
US5033872A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 6, 1990 |
| Grant date | Jul 23, 1991 |
| Priority date | — |
| Expiry date | Sep 6, 2010 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16C23/043
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A bushing has a cylindrical retaining member and an inner cylinder having an expanded portion which radially outwardly expands at its axially central portion to define a spherical outer surface. A pair of ring-shaped inserts, each having a concave inner surface, are slidably disposed in contact with the spherical outer surface of the expanded portion. A pair of outer cylinders are press-fitted into the retaining member from open ends thereof. An inside end surface of each outer cylinder abuts on an outside surface of each insert, thereby pushing each insert toward the expanded portion of the inner cylinder. A pair of cylindrical sealing members are disposed between the outer cylinders and the inner cylinder for providing a seal therebetween. An inside edge of the outer surface of each sealing member is bonded to the inner surface of each outer cylinder, and an outside edge of the inner surface of each sealing member is in sealing engagement with the outer surface of the inner cylinder.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.