Method and apparatus for limiting eccentric deviations of a rota

Details Method and apparatus for limiting eccentric deviations of a rota Method and apparatus for limiting eccentric deviations of a rota

1995-06-26

1996-10-22

Vrablik, John J.

Rotary expansible chamber devices

Unlike helical surfaces on relatively wobbling rotating...

418270, 166 685, 384196, 384220, 384266, 384273, F04C 2107, E21B 4300, F16C 2302, F16C 2706

Patent

active

055671381

ABSTRACT:
A method for limiting eccentric deviations of a rotating polished rod which extends through a stuffing box in a downhole rotary pumping application. The method includes the step of positioning below the stuffing box at least two centralizing members having arcuate contact surfaces that engage the rotating polished rod to dampen eccentric deviations. According to another aspect of the present invention there is provided an apparatus having a housing with a central polished rod receiving passage. At least two centralizing members extend radially inwardly into the central polished rod receiving passage to engage a rotating polished rod positioned in the central polished rod receiving passage.

REFERENCES:
patent: 1107998 (1914-08-01), Persoons
patent: 1303616 (1919-05-01), True
patent: 1887315 (1932-11-01), Lindgren
patent: 2080683 (1937-05-01), Yost et al.
patent: 2171171 (1939-08-01), Brauer

Affiliated with

Also associated with

Rating

Method and apparatus for limiting eccentric deviations of a rota does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and apparatus for limiting eccentric deviations of a rota, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for limiting eccentric deviations of a rota will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2354723