Packaging machine with a fluid pump assembly
US10569915B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 28, 2015 |
| Grant date | Feb 25, 2020 |
| Priority date | — |
| Expiry date | Feb 7, 2038 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04B37/14
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
The invention is directed to a packaging machine with a fluid pump assembly of the radial cylinder type, the assembly comprising a plurality of at least three pumps. Each pump has a piston guided in a cylinder, as well as a high pressure port and a low pressure port. A manifold is provided connecting the high pressure ports of a first group of first stage pumps so that the pumps of this first group are operatively connected in parallel, while at least one second stage pump is operatively connected to the first group of pumps in series. The invention is further directed to a method for generating a vacuum in a packaging machine with a fluid pump assembly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.