Sucker rod
US9278412B2 · kind B2 · utility
Inventors
Key dates
| Filing date | Aug 24, 2012 |
| Grant date | Mar 8, 2016 |
| Priority date | — |
| Expiry date | Dec 29, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49238
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
The disclosure relates to the treatment of rods made of metal, particularly to the method of reclamation of used standard length rods, such as pump rods already used in the mechanical deep-pumping extraction of oil, as well as to the product made with the help of the mentioned method. The method of remanufacturing of standard length rods includes the reheating of the rod body to a temperature favorable for the plastic treatment of the rod such as plastic deformation of the rod body under pressure. Such methods allow for the reclamation of rods of the desired geometric form and enhancement of the mechanical properties of the remanufactured rod. The technical outcome of the claimed invention consists in the reclamation of rods of the desired geometric form and enhancement of the mechanical properties of the remanufactured rod.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.