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:
Sep. 10, 2002
Filed:
Feb. 09, 1999
Applicant:
Inventor:
Johan Bratthall, Saltsjo-Boo, SE;
Assignee:
ITT Manufacturing Enterprises, Inc., Wilmington, DE (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16J 1/534 ;
U.S. Cl.
CPC ...
F16J 1/534 ;
Abstract
The invention concerns a seal device for a submersible machine, such as a pump or a mixer. The seal device is designed as an easily replaceable unit comprising two mechanical face seals ( ) and ( ) resp. with an intermediate room for a barrier liquid in which a pump for circulation of said liquid is arranged. A spring housing ( ) which serves as a uniting means for the seal device is provided with connecting means for the rotary seal rings ( ) and ( ) resp. and acts as a hub for impeller vanes ( ) in said circulation pump.