Rotor profile for a Roots vacuum pump
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United States of America Patent
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-
Oct 6, 1992
Grant Date -
N/A
app pub date -
Aug 27, 1991
filing date -
Aug 27, 1990
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A dual rotor Roots type vacuum pump has an improved rotor profile contour resulting in high area efficiency, high volumetric efficiency, reduced backstreaming and simplified economical manufacturing which yields a compact, cost effective pump.
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