Flowable material passage with interposable slide member
US4237014A · kind A · utility
12Cited by
2References
15Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 12, 1979 |
| Grant date | Dec 2, 1980 |
| Priority date | — |
| Expiry date | Mar 12, 1999 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C48/6912
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Flowable material is pumped between upstream and downstream passages in a body through an aperture portion formed in a slide member that communicates between the passages. An annular seal member engages the slide member under the urging of a Belleville spring. The slide member, formed as a filter, has a region of uniform porosity that is moved progressively through the path of flow of the material for changing the filter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.