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. 08, 2004
Filed:
Jan. 28, 2002
Applicant:
Inventors:
Robert A. Blakley, Rochester, NY (US);
Bernd Gigas, Churchville, NY (US);
Assignee:
SPX Corporation, Charlotte, NC (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01F 7/16 ; B01F 1/304 ; B01F 1/500 ;
U.S. Cl.
CPC ...
B01F 7/16 ; B01F 1/304 ; B01F 1/500 ;
Abstract
An apparatus for providing a secondary seal on mixers and similar rotating equipment that includes a stop assembly and a collar which cooperate to minimize translational movement of a mixer shaft during shutoff and to form a reversible seal between the vessel and the shaft. The apparatus provides a sealing engagement between the mixing vessel and the rotatable shaft of a mixer offering improved safety during mechanical seal replacement.