Recorders – Performance of multiple functions of steam and gas engines – Pressure responsive element
Patent
1988-03-18
1989-08-22
Goldberg, E. A.
Recorders
Performance of multiple functions of steam and gas engines
Pressure responsive element
346 75, G01D 1518
Patent
active
048600270
ABSTRACT:
A method and apparatus are disclosed which provide feedback control of ink viscosity in a drop marking system. The ink flow between two selected points is monitored and compared against a reference value by an electronic controller such as a microprocessor. In the event that a flow time deviation is sensed, appropriate action is taken to change the flow time. A temperature sensor input to the controller permits temperature compensation to maintain ink composition substantially constant.
REFERENCES:
patent: 4337468 (1982-06-01), Mizuno
patent: 4527170 (1985-07-01), Iwasaki et al.
patent: 4555712 (1985-11-01), Arway et al.
patent: 4714931 (1987-12-01), Erskine et al.
Keur Robert I.
Ozelis Joseph P.
A. B. Dick Company
Goldberg E. A.
Preston Gerald E.
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