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. 16, 1990
Filed:
Dec. 12, 1988
Applicant:
Inventor:
Stephen T Opresko, Lancaster, PA (US);
Assignee:
Thomson Consumer Electronics, Princeton, NJ (US);
Primary Examiner:
Int. Cl.
CPC ...
F23D / ;
U.S. Cl.
CPC ...
431168 ; 126 / ; 23921425 ;
Abstract
A ferrofluid seal assembly for providing gas to a rotatable member includes a chamber between the bore of the magnet within the seal and a shaft passing through the bore. Fluid inlet means provides fluid to the chamber. The shaft is hollow from the chamber to one end and communicates with the chamber for providing fluid to a rotable member affixed to the end of the shaft.