Encapsulated magnet for magnetic drive pumps

Details Encapsulated magnet for magnetic drive pumps Encapsulated magnet for magnetic drive pumps

1998-01-13

1999-12-28

Dolinar, Andrew M.

Pumps

Motor driven

Electric or magnetic motor

335302, 29607, F04B 1700

Patent

active

060073128

ABSTRACT:
An encapsulated magnet assembly has a magnet encapsulated during a two-step molding process. The first step includes molding a first molded section over a magnet assembly. The second step of the process includes molding a second molded section over the magnet and the first molded section in such a manner that the entire magnet is covered by the two molded sections completely. A first parting line is defined between the first and second molded sections along an elongate tapered section of the first molded section at the one end of the assembly. A second parting line is defined between the first and second molded sections at a dovetail on the first molded section. An outwardly tapered surface is provided on the dovetail. The two parting lines define leak-free seams between the two molded sections thereby sealingly encapsulating the magnet within the two molded sections.

REFERENCES:
patent: 4414523 (1983-11-01), Pieters
patent: 5464333 (1995-11-01), Okada et al.
patent: 5691681 (1997-11-01), Okugawa
patent: 5692882 (1997-12-01), Bozeman et al.
patent: 5708313 (1998-01-01), Bowes et al.
patent: 5763973 (1998-06-01), Cramer

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