Seal for a joint or juncture – Seal between relatively movable parts – Circumferential contact seal for other than piston
Reexamination Certificate
2006-08-02
2010-10-19
Patel, Vishal (Department: 3676)
Seal for a joint or juncture
Seal between relatively movable parts
Circumferential contact seal for other than piston
C277S410000
Reexamination Certificate
active
07815196
ABSTRACT:
The technical field of the invention relates to magnetic sealing devices used for transfer of torque involving rotating parts. Industries that deal in chemicals and pharmaceutics have a requirement to mix materials such as gases and liquids. This is carried out by mixers and agitators and similar other equipment. All devices involve a shaft that comes out of the body of the equipment, that is to say it pierces the equipment. The location at which the shaft enters the equipment is a potential point of leakage. One of the technical problems that the present invention tackles is that of providing a secure sealing that will reduce leakage. The magnetic seal assembly disclosed in the present invention provides a magnetic sealing device that gives a safe, trouble-free, robust, and leak-proof contactless seal for agitator drives and similar equipment used for industrial scale applications. The device disclosed in the present invention is used for transferring torque in industrial scale agitators wherein large volumes of liquid can be treated without leakage.
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patent: 2004/0223406 (2004-11-01), Burak
patent: 1573210 (2005-02-01), None
Chinese Office Action (with English translation) from the corresponding Chinese application No. CN200680028048.7, dated Jan. 8, 2010.
LaBarge Richard M.
Marshall & Gerstein & Borun LLP
Omega Kemix Pvt Ltd.
Patel Vishal
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