Recorders – Performance of multiple functions of steam and gas engines – Pressure responsive element
Patent
1987-03-09
1989-04-25
Hartary, Joseph W.
Recorders
Performance of multiple functions of steam and gas engines
Pressure responsive element
346 75, 346140R, 13452, 137 92, 137 93, 137398, G01D 1518, G05D 1100
Patent
active
048252280
ABSTRACT:
The ink jet printing system contains at least one ink jet printing head operatively connected to printing medium reservoirs by a conduit system. A partial ink flow is passed through a regulating apparatus for viscosity-dependent regulation. On exceeding the ink viscosity or ink density, a spindle body constructed as a float contacts a switch constructed as a proximity switch. The switch is operated such that a corresponding signal is supplied to a control valve and as a result the supply of solvent to a main ink reservoir of the printing medium reservoirs is initiated. The regulating apparatus may constitute an independent assembly associated with the main ink reservoir or can be integrated into the main ink reservoir.
REFERENCES:
patent: 3835881 (1974-09-01), Dal et al.
patent: 4067020 (1978-01-01), Arway
patent: 4422085 (1983-12-01), Sumitomo et al.
Publication by J. W. Haskell entitled "Ink Concentration Monitor", published in IBM Technical Disclosure Bulletin, vol. 20, No. 2, pp. 569 to 570, Jul. 1977.
Gloeckler Gerhard
Schrodin Klaus
Hartary Joseph W.
Preston Gerold e.
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