Incremental printing of symbolic information – Ink jet – Fluid or fluid source handling means
Reexamination Certificate
2011-08-30
2011-08-30
Stephens, Juanita D (Department: 2853)
Incremental printing of symbolic information
Ink jet
Fluid or fluid source handling means
C347S086000, C347S007000
Reexamination Certificate
active
08007083
ABSTRACT:
A refill unit for a fluid container is provided. The unit has a housing defining a fluid path in fluid communication with an outlet and configured to be operatively engaged with the fluid container, a fluid reservoir having an ejection port arranged in fluid communication with the fluid path inside the housing, and an ejector assembly having a piston and cylinder reservoir, said piston having a thread which engages a screw thread in an internal wall of the cylinder, the piston rotationally biased by a wound spring and the ejector assembly having a pawl-and-ratchet detent preventing the biased piston threading into the reservoir until the pawl is actuated by operative engagement of the fluid container with the housing to incrementally eject fluid from the reservoir.
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Berry Norman Micheal
Hibbard Christopher
Jackson Garry Raymond
Mackey Paul Ian
Nakazawa Akira
Silverbrook Research Pty Ltd
Stephens Juanita D
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