Cross-jack counterbalance system
US8950473B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Apr 29, 2011 |
| Grant date | Feb 10, 2015 |
| Priority date | — |
| Expiry date | Nov 13, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/2156
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
The device is a counterbalance system and method to reduce the work of conventionally balanced, reciprocating cantilevered beam pumping units, and comprises a pair of transversely oriented support mounts attached to the cantilevered beam or walking beam of a pre-existing reciprocating pumping unit, attaching on either side of the pivoting-fulcrum, mounting point of the cantilevered walking beam. These transverse mounting points terminate individually on either side of said walking beam in channel-like saddles that support independent, parallel beams, which in turn cantilever themselves in tandem with said walking beam of the pumping unit; moreover, the position of the parallel beams by virtue of the transverse mounts creates a new center of gravity corresponding to the center of the pivoting mounting point of the walking beam, eliminating counter-productive torque forces on the walking beam as it tilts from horizontal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.