Oldham type coupling and pump embodying the same

Details Oldham type coupling and pump embodying the same Oldham type coupling and pump embodying the same

1979-03-08

1980-12-09

Artis, Henry K.

64 6, 64 23, F16D 304

Patent

active

042377048

ABSTRACT:
An Oldham type coupling including first and second end coupling members rotatable about relative parallel axes and an intermediate coupling member. The intermediate coupling member is connected to the first end coupling member for relative translatory movement along a first path radially of the first end coupling member by a first set of rollers that transmit torque and by a second set of rollers that transmit end thrust between the intermediate and first end coupling member. The intermediate coupling member is connected to the second end coupling member for relative translatory movement along a second path radially of the second end coupling member and crosswise of the first path by a third set of rollers that transmit torque and by a fourth set of rollers arranged to transmit end thrust between the intermediate and second end coupling members.
The application discloses the Oldham type coupling embodied in a progressive cavity type pump or motor in which one end coupling member is connected to the shaft and the other end coupling member is connected to the rotor having an eccentric motion with respect to the stator to drivingly interconnect the shaft and rotor and to transmit end thrust on the rotor through the coupling to the shaft.

REFERENCES:
patent: 481780 (1892-08-01), Brown
patent: 1178529 (1916-04-01), Loomis
patent: 1380330 (1921-05-01), Ziegler
patent: 1411468 (1922-04-01), Wood
patent: 2491364 (1949-12-01), Earl
patent: 2545604 (1951-03-01), Byram
patent: 3539279 (1970-11-01), Rider et al.
patent: 3606768 (1971-09-01), Wildhaber
patent: 3782866 (1974-01-01), McDermott
patent: 4036031 (1977-07-01), Woodling

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