Helicopter transportable mud pump

Details Helicopter transportable mud pump Helicopter transportable mud pump

1983-03-14

1985-02-05

Freeh, William L.

Pumps

Changeable by assembly or disassembly

417362, 417539, 403335, F04B 1900, F04B 3914, F16D 100

Patent

active

044976143

ABSTRACT:
A helicopter transportable mud pump made into three stages, each of which is separable from one another. Each pump stage is made into a lightweight sub-assembly which can be lifted by a helicopter into inaccessible locations. The adjacent crankshaft ends of the assembled pump stages are series connected in axially aligned relationship respective to one another by a special coupling and drive means. The coupling means is comprised of two coacting coupling members, each of which have confronting faces connected together in a manner to dispose the adjacent shaft ends of the multi-stage pump 120.degree. out of phase respective to one another. The coupling halves are identical in design so that only one member must be duplicated during fabrication of the device.

REFERENCES:
patent: 1109836 (1914-09-01), Hanson
patent: 1720422 (1929-07-01), Manville
patent: 1750170 (1930-03-01), Frisch
patent: 1754231 (1930-04-01), Farmer
patent: 1891771 (1932-12-01), Mendenhall et al.
patent: 2108958 (1938-02-01), Brightwell
patent: 2561227 (1951-07-01), Reed
patent: 3364871 (1968-01-01), Wilson
patent: 3451282 (1969-06-01), Appleton
patent: 3520151 (1970-07-01), Resener
patent: 3637330 (1972-01-01), Goeldner
patent: 4407598 (1983-10-01), Hendershot

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