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. 13, 1987
Filed:
Jun. 07, 1985
Applicant:
Inventor:
Klaus Stroucken, Ronninge, SE;
Assignee:
Alfa-Laval Separation AB, Tumba, SE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B04B / ; B04B / ;
U.S. Cl.
CPC ...
210781 ; 210787 ; 210371 ; 494 27 ; 494 40 ;
Abstract
In order to subject a valve within the rotor of a centrifugal separator to a certain liquid pressure, the rotor being supported by a vertical drive shaft (13), a liquid surface is maintained during operation of the rotor very close to the axis of the rotor, this surface being formed within a central channel (12) through said drive shaft (13). The lower end of the drive shaft, in which the channel (12) opens axially through an orifice (31) having its surrounding edge at the desired radial level for the liquid surface, is rotated in a liquid body which is kept in a container (25) below the drive shaft (13).