Diaphragm pump with eliminated pump chamber dead space, and...

Details Diaphragm pump with eliminated pump chamber dead space, and... Diaphragm pump with eliminated pump chamber dead space, and...

2006-07-04

2006-07-04

Freay, Charles G. (Department: 3746)

Pumps

Motor driven

Electric or magnetic motor

C417S415000, C417S472000, C092S09800R

Reexamination Certificate

active

07070400

ABSTRACT:
The diaphragm suction pump has a pump chamber (7) located in a base plate (6), the wall of said chamber extending in a conical manner from a central flat base section (7′) to the lateral edge (8). The elastic pump diaphragm (5), which spans the pump chamber (7), is configured in such a way that it lies tightly against the entire pump chamber wall at the top dead center point of the drive connecting rod (4). The diaphragm (5) consists of a self-supporting elastic material with rear recesses (9; 10), which form hinges that can be elastically pretensioned during the operation of the diaphragm (5).

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