Constant flow rate liquid supply pump

Details Constant flow rate liquid supply pump Constant flow rate liquid supply pump

1979-06-25

1982-08-10

Freeh, William L.

Pumps

Successive stages

With interstage discharge or additional discharge from...

417266, 417268, F04B 2500, F04B 2504, G01D 1500

Patent

active

043435963

ABSTRACT:
An ink liquid supply system for an ink jet system printer comprising an ink liquid reservoir for containing ink liquid therein, and a constant flow rate pump for supplying the ink liquid to a nozzle. The constant flow rate pump comprises a first chamber for introducing an ink liquid collected by a beam gutter of the ink jet system printer and for returning the ink liquid to the ink liquid reservoir. The constant flow rate pump further comprises a second chamber for introducing the ink liquid from the ink liquid reservoir and for developing the ink liquid to the nozzle. The first and second chambers include a coaxial piston disposed therein for varying the pressure created in the first and second chambers.

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