Fluid pressure feeding apparatus

Details Fluid pressure feeding apparatus Fluid pressure feeding apparatus

1991-03-15

1993-11-16

Bertsch, Richard A.

Pumps

One fluid pumped by contact or entrainment with another

417122, 1376242, 405130, F04F 106, E03B 100

Patent

active

052617947

ABSTRACT:
A fluid pressure feeding apparatus for feeding cold water for cooling a mining pit into the pit and pumping water and muddy water heated within the mining pit onto the ground. A controller for switching a number of the operative chambers is provided to thereby perform a continuous operation.

REFERENCES:
patent: 3428072 (1969-02-01), Welch
patent: 4037992 (1977-07-01), Uchida
patent: 4321016 (1982-03-01), Sakamoto
patent: 4854783 (1989-08-01), Uchida
patent: 4922433 (1990-05-01), Mark
patent: 4991998 (1991-02-01), Kamino
German Office Action dated May 18, 1992 Die zentrale Kalteerzeugungsanlage des Bergwerks Heinrich Robert.
Pelton-Turbine, Rohraufgeber, Druckmengentauscher, By: Ing. (grad.) Edmond Tuttass, Gelsenkirchen.

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