Scraped-surface apparatus
US4185352A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Feb 10, 1978 |
| Grant date | Jan 29, 1980 |
| Priority date | — |
| Expiry date | Feb 10, 1998 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF28F19/008
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
Scraped-surface heat exchangers and similar apparatus employing scraper blades hinged to a shaft so as to scrape a fluid being processed from an elongated cylindrical wall are improved so as to obviate any need either for separate bearings at opposite ends of the shaft or for special skids to be used in disassembly and reassembly and so as to allow the blades to be biased against the wall without separate springs. Each blade bears on the wall not only at its leading or scraping edge but also at a trailing or bearing surface, so as to center the shaft and facilitate its rotation, so as to hold the edge in uniform relation to the wall, and so as to bias the edge of the blade against the wall.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.