High torque, flexible, dual, constant velocity, ball joint...

Details High torque, flexible, dual, constant velocity, ball joint... High torque, flexible, dual, constant velocity, ball joint...

2009-04-10

2011-10-11

Binda, Gregory (Department: 3679)

Rotary shafts, gudgeons, housings, and flexible couplings for ro

Coupling accommodates drive between members having...

Coupling transmits torque via radially spaced ball

C464S167000, C464S906000, C175S107000

Reexamination Certificate

active

08033920

ABSTRACT:
A flexible, dual ball joint assembly used for increasing the wear life of a mud motor. The ball joint assembly includes an drive shaft with a drive shaft hollow ball joint. An outer circumference of the hollow ball joint includes a plurality of equally spaced apart drive shaft ball bearings. An inner circumference, inside the hollow ball joint, includes a plurality of equally spaced apart drive shaft grooves. Also, the ball joint assembly includes an annular shaped torque coupler with a torque coupler ball joint. An outer circumference of the torque coupler ball joint includes a plurality of equally spaced apart torque coupler ball bearings. The torque coupler ball bearings are received in the drive shaft grooves for providing lateral movement between the drive shaft and the torque coupler. An outer circumference of the torque coupler next to the torque coupler ball joint includes a plurality of torque coupler lobes equally spaced apart therearound. Further, the ball joint assembly includes a sliding torque sleeve used to secure the drive shaft to the torque coupler during the operation of the ball joint assembly.

REFERENCES:
patent: 2796749 (1957-06-01), Warner
patent: 3310960 (1967-03-01), Cull
patent: 5160299 (1992-11-01), Sweeney
patent: 7648419 (2010-01-01), Jacob et al.
patent: 2002/0177485 (2002-11-01), Cermak et al.
patent: 785242 (1935-05-01), None
patent: 390438 (1933-04-01), None

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