Cooling system for a magnetic pump

Pumps – Expansible chamber type – Valved piston

Reexamination Certificate

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Details

C417S273000, C417S470000, C417S555100, C417S562000, C417S567000, C417S569000

Reexamination Certificate

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06843645

ABSTRACT:
A magnet pump includes a synthetic resin casing, divided into a front casing and a rear casing and configured to internally form an impeller housing chamber and a magnet can housing chamber contiguous thereto, having an inlet and an outlet for a target fluid to be transferred. The casing forms an eddy chamber at a position for dividing the front casing and the rear casing along the outer rim of the impeller housing chamber to surround the outer rim of the impeller. The eddy chamber has overhangs formed at an entry of the eddy chamber hanging over from both sides in the rotational-axis direction of the impeller.

REFERENCES:
patent: 3221661 (1965-12-01), Swearingen
patent: 4013384 (1977-03-01), Oikawa
patent: 4207485 (1980-06-01), Silver
patent: 4793777 (1988-12-01), Hauenstein
patent: 5064344 (1991-11-01), Kassel et al.
patent: 5228832 (1993-07-01), Nishida et al.
patent: 5322421 (1994-06-01), Hansen
patent: 5464333 (1995-11-01), Okada et al.
patent: 6074180 (2000-06-01), Khanwilkar et al.
patent: 0 778 658 (1997-06-01), None
patent: U 61-101690 (1986-06-01), None
patent: A 8-135592 (1996-05-01), None
patent: A 8-166000 (1996-06-01), None
patent: A 11-210669 (1999-08-01), None

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