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:
Dec. 24, 1985
Filed:
Feb. 09, 1984
Applicant:
Inventor:
Herbert Holik, Ravensburg, DE;
Assignee:
Escher Wyss GmbH, Ravensburg, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01D / ;
U.S. Cl.
CPC ...
2102212 ; 209170 ; 209211 ; 2105121 ; 261D / ;
Abstract
The flotation apparatus has a vessel or container into which vortex or turbulence channels lead. These vortex channels supply the fiber suspension or stock to the vessel and are provided with at least one stepped enlargement. An air conduit supplying flotation air opens into the vortex channel. The vessel is substantially cylindrical about a vertical axis and is provided in its upper region with a central conduit or pipe for extracting the flotation foam. In the lower region of the vessel a conduit for extracting the recovered good stock is disposed tangentially.