Swivel construction and method of making the same
US4804206A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 13, 1987 |
| Grant date | Feb 14, 1989 |
| Priority date | — |
| Expiry date | Oct 13, 2007 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16L37/088
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A swivel construction and method of making the same are provided, the construction comprising a body member and an adaptor member, each member having opposed ends and having a passage passing through the ends thereof, one end of the body member and one end of the adaptor member being disposed in telescoped relation, the construction having a retainer disposed between the telescoped ends and tending to hold the members in the telescoped relation while permitting swivel movement therebetween, the construction having a seal disposed between the telescoped ends and tending to seal the telescoped ends together while permitting swivel movement therebetween, the construction having a bearing disposed between the telescoped ends and intermediate the retainer and the seal, the construction having structure for causing the seal to leak a certain amount after the retainer has worn away the bearing a certain amount but is still maintaining the one ends in the telescoped relation thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.