Sealing assembly for sealing an opening in a plate through which a shaft extends
US4783088A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 18, 1987 |
| Grant date | Nov 8, 1988 |
| Priority date | — |
| Expiry date | Mar 18, 2007 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16J15/54
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An arrangement for sealing an opening in a plate (1) through which a shaft extends, the plate separating the "wet" and the "dry" zones of a packing machine from each other. In packing machines great demands are made on the tightness and durability of such shaft bushings, especially against strong washing agents, and the sealing assembly in accordance with the invention, therefore, has a flexible connection with the plate (1) and two O-rings (9,10), which are partly enclosed by two halves of a sealing assembly. Thereby, the O-rings are protected during washing as well as during operation. This design also produces a good sealing effect even when the shaft moves a little in radial direction during operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.