Vessel pump
US4177022A · kind A · utility
4Cited by
4References
11Claims
0Family size
Inventor
Key dates
| Filing date | Mar 29, 1978 |
| Grant date | Dec 4, 1979 |
| Priority date | — |
| Expiry date | Mar 29, 1998 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04C13/008
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A pump for pumping liquid from a vessel or the like wherein the driving motor drives a driving shaft extending in a delivery pipe and having a delivery rotor in the lower region of the driving shaft, the driving shaft being provided in at least one location with a resilient bearing of two concentrically arranged annular retainer springs formed from a single piece of metal wherein the inner annular retainer spring holds a replaceable slide bearing sleeve through which the driving shaft extends and the outer annular retaining spring is adjacent to and supported by the delivery pipe.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.