Tower frame combined transmitting pumping unit without guiding wheels
US9234411B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 9, 2010 |
| Grant date | Jan 12, 2016 |
| Priority date | — |
| Expiry date | Feb 25, 2032 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B15/003
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A tower frame combined transmitting pumping unit without guiding wheels includes a tower frame, a powering system, a transmitting system, a controlling system, a balancing weight box, a weight hauling cable, a rope wheel, a driving rope and rope hangers. The rope wheel is fixed on a side of an operation platform through a rope wheel supporting device. A central axis line of the rope wheel is located within the operation platform. A wheel rim of the rope wheel extends beyond the operation platform and a minimum distance between a most external rim thereof. The weight hauling cable and the driving rope twine around the rope wheel reversely. A free end of the weight hauling cable is connected to the balancing weight box through a rope hanger A. A platform moving device is installed between the operation platform and a top of the tower frame.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.