Spring-loaded bearings for in-hole motors

Details Spring-loaded bearings for in-hole motors Spring-loaded bearings for in-hole motors

1975-07-11

1976-09-28

Wood, Jr., M. H.

Cutlery

308 82, 308219, F16C 1704, F16C 1904

Patent

active

039827976

ABSTRACT:
This invention relates to spring-loaded thrust bearings for shafts subject to a plurality of levels of thrust loads and in its preferred embodiment is applied to in-hole motors. The invention employs a plurality of spring systems, whereby the thrust load on one set of springs is limited to one level of thrust and another of the spring systems under said load may be loaded to a higher level.

REFERENCES:
patent: 2701170 (1955-02-01), Reason et al.
patent: 3879094 (1975-04-01), Tschirky et al.
patent: 3904256 (1975-09-01), Pfeifer

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