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:
Oct. 26, 1982
Filed:
Apr. 06, 1979
Applicant:
Inventors:
Derald R Hatton, Middletown, OH (US);
David E Chupka, Middletown, OH (US);
Assignee:
The Black Clawson Company, Middletown, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B04C / ; B04C / ;
U.S. Cl.
CPC ...
209211 ; 2105121 ; 1341 / ; 273 / ;
Abstract
A self-sealing element is provided in the outer wall of the discharge chamber of a centrifugal cleaning apparatus opposite the rejects discharge outlet. When a blockage occurs at the discharge outlet, a long needle-like nozzle is inserted through the sealing element to the blockage. Water or air under pressure is expelled from orifices in the nozzle and breaks up the blockage. After the nozzle is withdrawn, the sealing element, which may be formed of a silicone rubber, reseals itself.