Down hole motor
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Nov 15, 1983
Grant Date -
N/A
app pub date -
Apr 27, 1981
filing date -
May 21, 1980
priority date (Note) -
Expired
status (Latency Note)
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Abstract
In a Moineau type fluid motor one of the relatively rotatable elements is made of a deformable material, and axial movement of tapered surfaces within the element, caused by variation in the fluid pressure, causes adjustment of the sealing force in the motor in accordance with the fluid pressure level.
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