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:
Jun. 02, 1992
Filed:
Jul. 18, 1989
Applicant:
Inventors:
Vedran A Tadic, Culemborg, NL;
Borge Andersson, Sandared, SE;
Assignee:
SKF Industrial Trading and Development Company B.V., Nieuwegein, NL;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16J / ;
U.S. Cl.
CPC ...
277 80 ; 277135 ;
Abstract
A sealing assembly forming a seal using a magnetic liquid around a rotatable shaft, comprising an armature for conducting a magnetic field, the armature having a free end adjacent the shaft to form an annular sealing gap; a quantitiy of magnetic liquid contained in the sealing gap by the magnetic field; and at least one covering member mounted on the assembly on one side of the gap to cooperatively define a space with the shaft for containing an amount of fluid at least two times the volume of the gap.