Diaphragm pump

Details Diaphragm pump Diaphragm pump

1991-07-29

1992-09-08

Bertsch, Richard A.

Pumps

Motor driven

Fluid motor

417 63, 417385, 92 97, 92 5R, F04B 4306, F01B 2526

Patent

active

051453312

ABSTRACT:
In a diaphragm or membrane pump, the diaphragm thereof is composed of two diaphragm disks arranged at an axial distance from one another and enclosing an interior space whose size is variable given damage to one of the diaphragm disks. Further, a signal generator is arranged in that diaphragm disk facing toward the conveying chamber and a signal pick-up is arranged in the pump housing, this signal pick-up being connected to a means for the electronic evaluation and amplification of the signals output by the signal pick-up. This embodiment makes it possible to recognize a potential damage to the diaphragm early and to thus reliably prevent hydraulic medium from proceeding into the conveyed medium.

REFERENCES:
patent: 3131638 (1964-05-01), Wilson
patent: 3431823 (1969-03-01), Orlita
patent: 3606566 (1971-09-01), Vetter
patent: 4403924 (1983-09-01), Gebauer et al.
patent: 4569634 (1986-02-01), Mantell
patent: 4740139 (1988-04-01), Mantell
patent: 4785719 (1988-11-01), Bachschmid et al.
patent: 4787825 (1988-11-01), Mantell
patent: 4828464 (1989-05-01), Maier et al.
patent: 4881876 (1989-11-01), Laziou
patent: 4915017 (1990-04-01), Perlov
patent: 4934902 (1990-06-01), Mantell
patent: 4966528 (1990-10-01), Henkel
patent: 4971523 (1990-11-01), Wacker et al.

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