MEMBRANE PUMP
First Claim
1. A diaphragm pump (101, 102, 107, 109, 116, 123) comprising a pump housing (1) on which a disposable cell (2) is releasably fixable, said disposable cell has a first cell wall and a second cell wall (3, 4) which define an operating space (5) therebetween, and an operating diaphragm (6) drivingly connected to an oscillating stroke drive, said operating diaphragm (6) is releasably coupleable with the flexible first cell wall (3) on a diaphragm flat side remote from the stroke drive, at least one outlet port (12) is located in the operating diaphragm (6) and is provided with a return flow obstructer or a return flow preventer for evacuating a dead space (11) arranged between the operating diaphragm (6) and the first cell wall (3).
1 Assignment
0 Petitions
Accused Products
Abstract
The invention relates to a diaphragm pump (109) having a pump housing (1) on which a disposable cell (2) is releasably fixable, which disposable cell has a first and a second cell wall (3, 4) which (3, 4) define an operating space (5) between them, and having an operating diaphragm (6) which (6) is drivingly connected to an oscillating stroke drive and which (6) is releasably coupleable with the flexible first cell wall (3) on its diaphragm flat side remote from the stroke drive. It is characteristic to the diaphragm pump (109) according to the invention that at least one outlet port (12) in the operating diaphragm (6) is provided with a return flow obstructer or a return flow preventer for evacuating the dead space (11) arranged between it and the first cell wall (3) (cf. FIG. 1).
-
Citations
41 Claims
- 1. A diaphragm pump (101, 102, 107, 109, 116, 123) comprising a pump housing (1) on which a disposable cell (2) is releasably fixable, said disposable cell has a first cell wall and a second cell wall (3, 4) which define an operating space (5) therebetween, and an operating diaphragm (6) drivingly connected to an oscillating stroke drive, said operating diaphragm (6) is releasably coupleable with the flexible first cell wall (3) on a diaphragm flat side remote from the stroke drive, at least one outlet port (12) is located in the operating diaphragm (6) and is provided with a return flow obstructer or a return flow preventer for evacuating a dead space (11) arranged between the operating diaphragm (6) and the first cell wall (3).
Specification