Rotary union apparatus
US5713609A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 27, 1996 |
| Grant date | Feb 3, 1998 |
| Priority date | — |
| Expiry date | Nov 27, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S285/906
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A self-cleaning rotary union apparatus provides a fluid coupling between a pair of relatively rotatable fixture elements, and includes a base and a body that are rotatable relative to one another. The base includes a mounting surface, an interior surface opposing the mounting surface, a fluid passageway extending into the base, and a plurality of bores extending through the base between the mounting surface and the interior surface. The bores are countersunk adjacent the interior surface to permit flange mounting of the base on one of the fixture elements. An elongated rotor protrudes from the interior surface of the base and includes a cylindrical side surface provided with an annular channel and a fluid passageway that communicates with the annular channel and with the passageway in the base. The body also presents mounting and interior surfaces, and includes a fluid passageway extending into the body and communicating with the annular channel of the rotor, and an outer side surface extending between the mounting and interior surfaces. The outer side surface is shaped to expose the bores at the interior surface of the base during relative rotation between the body and base in ord…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.