Arrangement for a valve assembly for a liquid jet printer
AssigneeScandot System AB
InventorKlaus Mielke
Life of this patent
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Abstract
The present invention relates to an arrangement (1) for a valve assembly which acts with a movable valve body (4), such as a piston, for the purpose of feeding a liquid in a liquid jet printer, the valve assembly including a valve seat (5) which extends around a liquid discharge opening (6) and interacts with said valve body to form a seal. The invention permits, amongst other things, the simple production of components parts of the valve assembly, and also permits the accurate feeding of liquid from the liquid jet printer. Said valve seat (5) is made of a flexible material (5A) capable of interacting with the moving valve body (4).
Claims16
A valve assembly in a liquid jet printer, comprising a movable valve body which includes a piston with a stop made of essentially inflexible material, a cavity surrounding said piston and stop for holding print liquid, a liquid discharge opening, and a flexible valve seat extending around said liquid discharge opening, and forming a seal upon engagement with said valve body, characterized in that said valve seat, upon engagement with said valve body, is compressed and expands in the direction of the center of said liquid discharge opening to reduce the inside diameter of said valve seat and to force liquid through said discharge opening.
Dependencies are inferred from the claim text.