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. 11, 1988
Filed:
May. 11, 1987
Applicant:
Inventor:
Noriyuki Motomura, Zama, JP;
Assignee:
Toshiba Kikai Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F04B / ;
U.S. Cl.
CPC ...
417 50 ; 310 11 ; 417363 ;
Abstract
In an electromagnetic pump of the type including concentric outer and inner conduits for defining a passage for molten metal, an exciting coil surrounding the outer conduit, and a magnetic core contained in the inner conduit, a cartridge electric heater is inserted into the inner conduit for preventing temperature drop of the molten metal supplied to a casting machine, for example. The electric heater may be disposed in series with the magnetic core or may be inserted into a cylindrical magnetic core.