http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2016160564-A1

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filingDate 2016-02-11-04:00^^<http://www.w3.org/2001/XMLSchema#date>
inventor http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b4aaa50710f80e813ea2327891885458
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publicationDate 2016-06-09-04:00^^<http://www.w3.org/2001/XMLSchema#date>
publicationNumber US-2016160564-A1
titleOfInvention Mud motor assembly
abstract A longer-lasting, lower cost, more powerful, all metal, mud motor than the presently available progressing cavity type mud motors for drilling boreholes into the earth. A mud motor apparatus possessing one single drive shaft that turns a rotary drill bit, which apparatus is attached to a drill pipe which provides high pressure mud to the mud motor, wherein the drive shaft receives at least a first portion of its rotational torque from any high pressure mud flowing through a first hydraulic chamber within the apparatus, and receives at least a second portion of its rotational torque from any high pressure mud flowing through a second hydraulic chamber within the apparatus. The mud motor apparatus possesses two hydraulic chambers, each having its own power stroke, and return stroke, and acting together in a controlled fashion, provide continuous power to a rotary drill bit.
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Total number of triples: 25.