Counterbalance system for pumping units
US9157431B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Apr 10, 2013 |
| Grant date | Oct 13, 2015 |
| Priority date | — |
| Expiry date | Jul 1, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/2156
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A counterbalance system for a cantilevered beam pumping unit includes a counterbalance support structure adapted to be mounted in an operating position on the cantilevered beam of the pumping unit. A suspension element is connected to the counterbalance support structure so as to depend from a suspension end of the counterbalance support structure, and a counterbalance weight is connected to the first suspension element in a spaced apart relationship with respect to the counterbalance support structure. A stabilizer device is connected to the counterbalance weight via a first pivot connection and is connected to a structure separate from the counterbalance weight via a second pivot connection.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.