Stepped cylinder piston pump
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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N/A
Issued Date -
Nov 8, 2007
app pub date -
May 1, 2007
filing date -
May 5, 2006
priority date (Note) -
Abandoned
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Abstract
A piston pump in which, when the piston is stored or when the pump is not operative, the piston is received inside a portion of the chamber with the piston in a position having a larger diameter than portions of the chamber in which the piston is received when the piston is operative for pumping.
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