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Long stroke pumpA very high pressure pump apparatus which minimizes wear on the seals thereof and on valves connected thereto, by utilizing a very long stroke piston rod whose opposite ends are received in long cylinders. An electric motor which drives the rod, includes a rotor with a threaded aperture that receives a long threaded middle portion of the rod, so that as the rotor turns it advances the rod.
Document ID
20080012221
Acquisition Source
Headquarters
Document Type
Other - Patent
Authors
Perkins, Gerald S.
Moore, Nicholas R.
Date Acquired
August 24, 2013
Publication Date
March 20, 1979
Subject Category
Mechanical Engineering
Report/Patent Number
Patent Application Number: US-PATENT-APPL-SN-774229
Patent Number: US-PATENT-4,145,165
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
Patent
US-PATENT-4,145,165
Patent Application
US-PATENT-APPL-SN-774229

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