The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 29, 1980
Filed:
Feb. 10, 1978
Robert L Smith, Louisville, KY (US);
Chemetron Corporation, Chicago, IL (US);
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.