Pump arrangement for pumping liquid by means of compressed air

Details Pump arrangement for pumping liquid by means of compressed air Pump arrangement for pumping liquid by means of compressed air

1992-02-19

1993-02-16

Kwon, John T.

Pumps

One fluid pumped by contact or entrainment with another

Liquid pumped by supplying or exhausting gaseous motive...

417144, 417145, 4151821, F04F 300

Patent

active

051866110

ABSTRACT:
A pump arrangement that has a pump chamber with an inlet opening and a discharge opening. A discharge pipe is connected to the outlet opening to carry liquid, etc., from the pump chamber. An inlet pipe is connected to the inlet opening and extends downwardly therefrom into the liquid to carry liquid, etc., to the pump chamber. The inlet opening is formed in the pump chamber above the discharge opening. A supply pipe is connected between a source of compressed air and the pump chamber. The supply pipe selectively either supplies compressed air to the pump chamber for exhausting liquid, etc., therefrom via the outlet opening and the discharge pipe or vents the air for intaking liquid, etc., into the pump chamber via the inlet pipe and the inlet opening. The inlet pipe is valve-free, whereby the inlet pipe is open during the entire operation of the pump arrangement so that the pump may pump liquids containing solid objects.

REFERENCES:
patent: 1362858 (1920-12-01), Engles et al.
patent: 2360038 (1944-10-01), Burton
patent: 3915593 (1975-10-01), Chamberlain
patent: 3930755 (1976-01-01), Lahr et al.
patent: 4439110 (1984-03-01), Massaux
patent: 4725202 (1988-02-01), Zison

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