Ink-jet recording device and pump used therein

Details Ink-jet recording device and pump used therein Ink-jet recording device and pump used therein

1997-07-09

2000-07-04

Freay, Charles G.

Pumps

Expansible chamber type

Elongated flexible chamber wall progressively deformed

4174778, F04B 4308

Patent

active

06082977&

ABSTRACT:
A pump 15 disposed in an ink-jet recording device has flexible tube 103 and guide member 106 whereon a prescribed part of the tube is mounted. Roller 105, of which there is at least one and which pressurizes and deforms tube 103, is supported by lever 107 such that it pressurizes the tube when it rotates in the forward direction and releases the pressure on the tube when it rotates in the reverse direction. This lever 107 is urged by spring 108 in the direction that presses the roller against the tube.

REFERENCES:
patent: 419461 (1890-01-01), Lee
patent: 2314281 (1943-03-01), Knott
patent: 2696173 (1954-12-01), Jensen
patent: 3737256 (1973-06-01), De Vries
patent: 4976593 (1990-12-01), Miyamoto
patent: 5486854 (1996-01-01), Uchida

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