Appeal No. 2003-1258 2
Application No. 09/745,757
components a displacement rod having a cross hole and a passageway. The cross hole has
a first position wherein it vents an undesired fluid through the passageway to the outside of
the container. In a second position the cross hole is outside the container. Additional
limitations are described in the following illustrative claim.
THE CLAIM
Claim 12 is illustrative of appellant’s invention and is reproduced below:
12. A fluid transfer apparatus comprising:
a container having a first end and a second end and being made of a
substantially rigid material, said container having a substantially hollow bore
extending therethrough from said first end to said second end, and at least
one opening for receiving and discharging fluid;
a first seal located at said first end;
a second seal located at said second end; and,
a displacement rod slidably inserted through an opening in one of said
first and second seals so that a portion of said displacement rod fits inside
said container, said displacement rod changing the displacement volume in
the container as said displacement rod is moved within said container, said
displacement rod further having a cross hole and a passageway, said cross
hole having at least a first position within said container to vent an undesired
fluid through said passage way to the outside of said container and a second
position wherein said cross hole is outside the container wherein said cross
hole is not in fluid communication with the interior of said container to
control the venting of undesired fluids by the position of the displacement
rod.
THE REFERENCE OF RECORD
As evidence of obviousness, the examiner relies upon the following reference:
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