Scraped-surface apparatus

Details Scraped-surface apparatus Scraped-surface apparatus

1978-02-10

1980-01-29

Roberts, Edward L.

Brushing, scrubbing, and general cleaning

Attachments

Tank cleaners

62354, 1510404, 165 95, F28G 312

Patent

active

041853520

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.

REFERENCES:
patent: 3145017 (1964-08-01), Thomas
patent: 3848289 (1974-11-01), Bachmann
patent: 4073339 (1978-02-01), D'Orsay

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