Adjustable fluid swivel
US4828292A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 31, 1987 |
| Grant date | May 9, 1989 |
| Priority date | — |
| Expiry date | Dec 31, 2007 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16L27/093
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A fluid swivel is described, which enable the measurement and the adjustment of separation of seal surfaces. The fluid swivel includes inner and outer walls that are rotatably coupled about an axis and that form an annular chamber and a pair of gaps extending from the chamber. A hollow region is formed along each gap for holding a face seal, and the gap forms an extrusion gap portion extending radially from each hollow region. The inner and outer walls form axially-spaced wall surfaces adjacent to the hollow region, and one of the walls has a gage-passing passage leading from the outside of the wall to the space between the wall surfaces to pass a gage for measuring the separation gap between the wall surfaces. One of the walls includes a plurality of parts and also includes shims between the parts for enabling slight adjustment of the spacing between the seal surfaces, depending on the thickness of the shims.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.