Diaphragm pump
US9599222B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 26, 2012 |
| Grant date | Mar 21, 2017 |
| Priority date | — |
| Expiry date | Oct 26, 2033 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16J3/02
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
In a diaphragm pump having a fluorine resin-made rolling diaphragm including: an inner circumferential portion that elongates along an outer circumferential surface of a piston; an outer circumferential portion that elongates along the inner circumferential surface of a cylinder; and a folded portion that is formed by folding back in a tubular space between the cylinder and the piston; and a pump chamber is separated by the rolling diaphragm in the cylinder, the rolling diaphragm is produced in an extended attitude corresponding to an attitude obtained when, by a projective movement of the piston, the outer circumferential portion is eliminated, and the folding of the folded portion is opened.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.