Enhanced elastomeric stator insert via reinforcing agent distribution and orientation
US8944789B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 22, 2011 |
| Grant date | Feb 3, 2015 |
| Priority date | — |
| Expiry date | Dec 21, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49242
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A progressive cavity type motor or pump including a stator insert with a reinforcing agent dispersed in a manner to improve properties of the stator insert. The reinforcing agent may be a fiber, nanotube, metal, ceramic, or polymer. A dispersing agent may be used to obtain a homogenous distribution. A magnetic reinforcing agent may be incorporated into a stator insert. The stator insert is subjected to a magnetic field to orient the magnetic reinforcing agent in a particular orientation. The magnetic field may also reposition the magnetic reinforcing agent within the stator insert. The stator insert may be formed by injection molding, transfer, or compression molding among other methods.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.