Bag in box beverage pump
US9316214B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Apr 3, 2012 |
| Grant date | Apr 19, 2016 |
| Priority date | — |
| Expiry date | Aug 24, 2034 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04B43/06
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A pump operated with compressed gas is disclosed herein. The pump has two separate cylinders which share a common wall. Pistons are attached to a common shaft that runs through the common wall. The pistons are disposed within each of the cylinders. The pistons divide the cylinders into gas and liquid chambers. The liquid chambers of the cylinder form a liquid system and are in fluid communication with the liquid inlet and outlet. The gas chambers of the cylinders form a gas system and are in communication with gas inlet and outlet. A manifold switching mechanism controls routing of compressed gas to either one of the gas chambers to operate the gas operated pump. The pump may also have an automatic shutoff valve which shuts off operation of the pump when liquid from a liquid source has been depleted.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.