Dosing apparatus and process
US5265654A · kind A · utility
7Cited by
9References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 12, 1992 |
| Grant date | Nov 30, 1993 |
| Priority date | — |
| Expiry date | Aug 12, 2012 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01F11/08
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Dosing a flowable product is effected with an apparatus which has a rigid casing having a hollowed interior through which an elastic hose, which is connected to the casing, extends between casing inlet and outlet openings, and elastic rings are positioned to encircle the hose at positions adjacent each of the casing inlet and outlet openings, so that upon generation of sub- and then super-atmospheric pressure within the space between the hose and casing, the hose expands and contracts and the rings open and close the hose for product flow introduction into and ejection from the hose for dosing the product.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.