Fluid supply apparatus and image forming apparatus

Details Fluid supply apparatus and image forming apparatus Fluid supply apparatus and image forming apparatus

2009-04-29

2011-10-25

Luu, Matthew (Department: 2861)

Incremental printing of symbolic information

Ink jet

Fluid or fluid source handling means

C347S085000, C347S086000

Reexamination Certificate

active

08042920

ABSTRACT:
A fluid supply apparatus enables the direction of movement of a fluid to be changed easily while maintaining high barrier property and durability. The fluid supply apparatus includes an upper cylinder having a first and a second supply/discharge opening for supplying or discharging a fluid. A piston is movably disposed within a lower cylinder, forming a cylinder internal chamber. A fluid channel open/close member is rotatably disposed in the upper cylinder. The fluid channel open/close member opens or closes a channel communicating the first or the second supply/discharge opening with the cylinder internal chamber, while closing at least one of the first and the second supply/discharge openings at any time. The rotation of the fluid channel open/close member is linked with the movement of the piston by a cam groove and a cam pin.

REFERENCES:
patent: 6132027 (2000-10-01), Suzuki et al.
patent: 2008/0218571 (2008-09-01), Nishimori
patent: 60-256577 (1985-12-01), None
patent: 2002-370374 (2002-12-01), None
patent: 2004-223829 (2004-08-01), None
patent: 2004-351641 (2004-12-01), None

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