Brushing – scrubbing – and general cleaning – Attachments – Tank cleaners
Patent
1976-06-28
1978-06-20
Roberts, Edward L.
Brushing, scrubbing, and general cleaning
Attachments
Tank cleaners
165 94, 366311, 366312, B08B 908, F28Q 310
Patent
active
040953076
ABSTRACT:
A scraper for the interior surface of a vessel having an inner shaft positioned within the vessel. A plurality of arms are disposed radially with respect to the inner shaft in parallel pairs. At least two arms of one pair of arms oppositely radially disposed on the inner shaft are substantially parallel with respect to another two arms similarly disposed. Peripheral shafts span the end portions of the parallel arms. Further parallel arms and corresponding peripheral shafts may locate ninety degrees about the inner shaft with respect to adjacent pairs of arms. Scraping means for scraping the interior surface of the vessel mount to the plurality of peripheral shafts. The scraping means includes a lever having two pivotal arms, one pivotal arm encompassing a blade and the other pivotal arm having a spring means for urging contact between the blade and the inner surface of the vessel. The inner shaft may be constructed with sufficient flexibility to generally coincide with the deflected axis of imperfect vessels.
REFERENCES:
patent: 743955 (1903-11-01), Thompson
patent: 1338714 (1920-05-01), Wagner
patent: 2884234 (1959-04-01), Gebhart et al.
patent: 3216042 (1965-09-01), Strittmatter
patent: 3731339 (1973-05-01), Addison
patent: 3848289 (1974-11-01), Bachmann
patent: 3973623 (1976-08-01), Sarll
IBM Disclosure Bulletin (Berlier et al.), vol. 18, No. 6, Nov. 1975.
Lox Equipment Company
Roberts Edward L.
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