Container filling apparatus with selectively communicated chambers
US4787428A · kind A · utility
12Cited by
8References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 21, 1987 |
| Grant date | Nov 29, 1988 |
| Priority date | — |
| Expiry date | Jul 21, 2007 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/2569
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
Liquid from a supply tank B flows into a container C via outer and central annular chambers 14, 8 of filling apparatus A. Communication between the chambers is controlled by a flexible diaphragm 5 selectively urged against an annular seat 15 on a wall 10 separating the chambers in response to air pressure supplied to a chamber 23 on an opposite side of the diaphragm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.