Pumps – Expansible chamber type – Having separate noncyclic valve
Patent
1987-09-25
1988-12-20
Freeh, William L.
Pumps
Expansible chamber type
Having separate noncyclic valve
418206, 101366, F04B 2302, F04B 3902, B41F 3100
Patent
active
047922923
ABSTRACT:
An ink pump system includes an ink reservoir and an ink solvent reservoir from which solvent is controllably transferred into the ink in the reservoir so as to maintain the desired ink viscosity. The ink reservoir has an ink outlet for discharging ink to a point of consumption and an inlet into which excess ink may be recirculated to the ink reservoir. A seal-less gear pump is submerged in the ink reservoir. The pump includes a housing with an inlet communicating with the interior of the ink reservoir so as to receive ink from the ink contents in the reservoir. The pump housing also has a discharge outlet communicating with the ink outlet of the reservoir. The power source for drawing the recirculating gear pump can also be used to drive a paddle which stirs the ink in the reservoir.
REFERENCES:
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patent: 4573439 (1986-03-01), Kasting
Tampoprint Spare Parts List Automatic Ink Pump, Tampoprint GMBH, dated 7/86 pages 2-12.
Freeh William L.
Tampo-Tool, Inc.
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