Atmospheric pressure chamber in an ink jet system printer

Details Atmospheric pressure chamber in an ink jet system printer Atmospheric pressure chamber in an ink jet system printer

1984-01-17

1986-07-08

Hartary, Joseph W.

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Record receiver deforming

346140R, G01D 1518

Patent

active

045996245

ABSTRACT:
An ink liquid supply system for an ink jet system printer includes an atmospheric pressure chamber interposed between an ink tank and a pressurizing pump. An air buffer is immersed in an ink liquid contained in the atmospheric pressure chamber. The air buffer is surrounded by a resilient wall and the inside of the air buffer is communicated with the atmosphere through an air inlet. When the ink liquid contained in the atmospheric pressure chamber freezes, the expansion of the ink liquid is absorbed by the air buffer, thereby preventing the explosion of the atmospheric pressure chamber.

REFERENCES:
patent: 3761953 (1973-09-01), Helgeson
patent: 3835881 (1974-09-01), Dal
patent: 4124853 (1978-11-01), Kattner
patent: 4270133 (1981-05-01), Shimazawa
patent: 4422085 (1983-12-01), Sumitomo
patent: 4475116 (1984-10-01), Sicking
Greene, J.; Pressure Surge Accumulator, IBM TDB, vol. 15, No. 3, Aug. 1972, p. 766.

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