Well pumping unit driven by linear motor

Details Well pumping unit driven by linear motor Well pumping unit driven by linear motor

2006-02-21

2006-02-21

Freay, Charles G. (Department: 3746)

Pumps

Motor driven

Electric or magnetic motor

C166S068500, C310S017000

Reexamination Certificate

active

07001157

ABSTRACT:
The present invention relates to a well pumping unit driven by a linear motor. The well pumping unit includes a slideway support, a linear motor having a motor complex primary and a motor complex secondary, a polished rod chain, a polished rod chain wheel assembly, a bottom support chain wheel, a counterweight chain wheel, a counterweight chain, and a counterweight. The complex secondary, polished rod chain wheel assembly, bottom support chain wheel and counterweight chain wheel are fixed on the slideway support, the complex primary moving along the slideway support. A first end of the polished rod chain is fixed to an upper end of the complex primary and passes over the polished rod chain wheel assembly, with a second end fixed to a polished rod. A lower end of the complex primary is fixed to a first end of the counterweight chain, the counterweight chain passes over the bottom support chain wheel and counterweight chain wheel and is fixed to the counterweight at a second end thereof.

REFERENCES:
patent: 2681623 (1954-06-01), Kane
patent: 4161137 (1979-07-01), Gaddy
patent: 4512149 (1985-04-01), Weaver
patent: 4719811 (1988-01-01), Lang et al.
patent: 5375657 (1994-12-01), Shi et al.
patent: 5409356 (1995-04-01), Massie
patent: 6213722 (2001-04-01), Raos
patent: 6749017 (2004-06-01), Lu et al.

Affiliated with

Also associated with

Rating

Well pumping unit driven by linear motor does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Well pumping unit driven by linear motor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Well pumping unit driven by linear motor will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3655155