Method of securing a Moineau pump stator

Details Method of securing a Moineau pump stator Method of securing a Moineau pump stator

1979-01-04

1980-09-09

Crane, Daniel C.

Metal working

Means to assemble or disassemble

Puller or pusher means, contained force multiplying operator

29432, 29526R, 418 48, B23P 1500, F01C 506

Patent

active

042210364

ABSTRACT:
A method of assembling progressing cavity pump of the Moineau type having a helically externally threaded rotor coacting with an internally helically threaded stator. In a Moineau pump where the pump casing is a singular tubular unit, the stator is normally bonded to the inside of a tubular housing with an adhesive. When such pumps are used to pump a corrosive fluid, such as caustic soda, the adhesive can be attached and the stator thus freed to rotate. To prevent the stator from rotating, studs are driven through the housing and into the stator. The location of these studs can be pre-marked by use of a suitable template. Also, the driven studs can be welded to the housing to prevent leakage or loosening.

REFERENCES:
patent: Re16599 (1927-04-01), Mattice
patent: 218340 (1879-08-01), Toope
patent: 1407202 (1922-02-01), Kubler
patent: 1745542 (1930-02-01), Johnson
patent: 2216784 (1940-10-01), Payne
patent: 2290137 (1942-07-01), Aldridge
patent: 2879920 (1959-03-01), Davies
patent: 3479960 (1969-11-01), Cardoso
patent: 3526947 (1970-09-01), Pasek
patent: 3733696 (1973-05-01), Scofield et al.
patent: 4029443 (1977-06-01), Burnside et al.

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