Mechanical proportioner
US6168308A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 15, 1999 |
| Grant date | Jan 2, 2001 |
| Priority date | — |
| Expiry date | Feb 15, 2019 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01F35/8822
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A mechanical proportioner is provided with two pump lowers which are connected together by a yolk underneath an air-operated reciprocating piston pump. The pumps are staggered axially so as to enable overlapping of certain portions thereof thereby enabling the center-to-center distance to be minimized. The mix manifold is constructed in a concentric fashion such that mixed material does not come into contact with the mix manifold until it enters the static mixer at the exit of the manifold which is an easily disposable and replaceable part. The purge solvent valves on the mix manifold are each provided with an extension of their respective handles. If either purge valve is in its open position, a separate interlock handle operating the A and B side valves at the manifold inlet is prevented from opening. Similarly, if the interlock handle operating the A and B side valves is open, the purge valves cannot be opened.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.