Wear ring mount for lift pumps
US4552508A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 15, 1983 |
| Grant date | Nov 12, 1985 |
| Priority date | — |
| Expiry date | Jun 15, 2003 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/1993
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
In an elongated, inclined tubular lift pump for fluids such as sewage and the like having apparatus at the upper end for rotation thereof and a support adjoining the lower end thereof, said support including a wear ring encircling the tubular housing and roller enaging said wear ring, said wear ring being secured to said tubular housing by a plurality of blocks positioned on opposing sides of said wear ring and secured to the tubular housing, each of said blocks having an inclined slot and pins carried by the sides of said wear ring and engaging said slots to permit rotation of said wear ring relative to said tubular housing with changes in temperature differentials between the wear ring and tubular housing while maintaining concentricity of the wear ring and housing and thus relieving stress on said tubular housing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.