Pumping device, particularly suitable for compressing fluids on

Details Pumping device, particularly suitable for compressing fluids on Pumping device, particularly suitable for compressing fluids on

1987-06-01

1988-07-05

Smith, Leonard E.

Pumps

Motor driven

Fluid motor

92103F, F04B 4310

Patent

active

047551119

ABSTRACT:
Hydraulic-exchange pumping device comprising two containers or tanks, inside each of which there are defined: a chamber for the product to be pumped, which is respectively connected, through a delivery valve and a suction valve, to the lines of delivery and of intake of the product to be pumped, as well as a chamber for the hydraulic drive fluid, which is connected to a pump through a four-way, three-position distribution box. This partitioning is accomplished by means of an internal elastic membrane having a decreasing thickness from the its peripheral edge towards its central zone, which can be also equipped with a strengthening cloth embedded inside it, as well as with a set of metal rings having a cross-section surface area decreasing towards the center of the same membrane.

REFERENCES:
patent: 2673525 (1954-03-01), Lucas
patent: 2738731 (1956-03-01), Browne
patent: 3227314 (1966-01-01), Porter et al.
patent: 3496879 (1970-02-01), Brandes
patent: 3523857 (1970-08-01), Crosland
patent: 3749526 (1973-07-01), Ferrentino
patent: 4008008 (1977-02-01), Vergnet
patent: 4406596 (1983-09-01), Budde

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