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:
Oct. 12, 1999
Filed:
Feb. 23, 1998
Applicant:
Inventor:
Frederic W Buse, Allentown, PA (US);
Assignee:
Ingersoll-Dresser Pump Company, Liberty Corner, NJ (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H01F / ;
U.S. Cl.
CPC ...
29598 ; 29607 ; 164112 ; 310 42 ; 310156 ;
Abstract
A method is provided for manufacturing an encapsulated magnet carrier by forming a wax pattern of the magnet carrier with an annular conducting ring annular chamber section, placing the conducting ring over the wax pattern in the annular chamber section, and forming an investment casting shell mold around the wax pattern and conducting ring. The magnet carrier is then cast with the conductor ring in place by pouring molten casting material into the mold, solidifying the casting material, and then separating the cast magnet carrier with the cast in place conductor ring from the surrounding mold.