Submersible motor and pump assembly
US4586880A · kind A · utility
9Cited by
4References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 30, 1984 |
| Grant date | May 6, 1986 |
| Priority date | — |
| Expiry date | Apr 30, 2004 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S415/901
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A motor of the submersible type drives a pump immersible in liquids. The motor is provided with guide grooves formed on the motor bracket for guiding undesirable small particles falling by gravity onto the bracket away from the area near the motor shaft so that before an overabundance of undesirable small particles accumulates on a collar mounted on the motor shaft, the accumulated particles gravity fall into the guide grooves. By this arrangement the undersirable wear of the motor shaft and oil seals located between the motor shaft and the motor bracket is eliminated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.