Separable blade agitator and method and means for assembly
US4221488A · kind A · utility
14Cited by
11References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 5, 1979 |
| Grant date | Sep 9, 1980 |
| Priority date | — |
| Expiry date | Mar 5, 1999 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J2219/0209
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A separable blade agitator has a glass coated drive shaft and a glass coated impeller interference fitted to the end of the shaft in a gasketless, glass surface to glass surface joint. The interference fitting of the impeller to the shaft is accomplished by super cooling the end of the shaft with nitrogen or the like so that it can be inserted into a glass coated bore in the impeller.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.