Helicopter transportable mud pump

Details Helicopter transportable mud pump Helicopter transportable mud pump

1981-11-30

1984-08-28

Freeh, William L.

Pumps

Changeable by assembly or disassembly

417539, 403337, F04B 3700, F04B 2306, F16D 102

Patent

active

044681747

ABSTRACT:
A helicopter transportable mud pump made into three stages, each of which are separable from one another. Each pump stage is a light weight 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 means. The coupling means is comprised of two coacting coupling members, each of which have confronting faces connected together in a manner that also causes the adjacent shaft ends of the multi-stage pump to be connected 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: 57771 (1866-09-01), Roach
patent: 1637944 (1927-08-01), Keller
patent: 1750170 (1930-03-01), Frisch
patent: 1964679 (1934-06-01), Springfield
patent: 2079460 (1937-05-01), Marty
patent: 2250448 (1941-07-01), Edwards
patent: 2561227 (1951-07-01), Reed
patent: 2585113 (1952-02-01), Gredell
patent: 3364871 (1968-01-01), Wilson
patent: 3451282 (1969-06-01), Appleton
patent: 3500660 (1970-03-01), Anderson
patent: 4070120 (1978-01-01), Bald et al.

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