Pulsation dampener with gas retention
US11193506B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 15, 2018 |
| Grant date | Dec 7, 2021 |
| Priority date | — |
| Expiry date | Nov 15, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03F7/0002
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A pulsation dampener for a dispensing system comprising a housing, a diaphragm comprising at least one fluoropolymer layer, the diaphragm dividing the housing into a first compartment and a second compartment, an inlet port and an outlet port each in fluid communication with the first compartment thereby providing a flow path for a liquid to enter the first compartment via the first inlet port and exit the first compartment via the outlet port, and at least one gas disposed within the second compartment, the at least one gas having a kinetic diameter of 0.36 nm or greater, wherein the fluoropolymer of the at least one fluoropolymer layer and the at least one gas are selected such that a gas transmittance rate of the at least one gas through the diaphragm is from 0 mbar*L/second to 1*10−5 mbar*L/second.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.