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:
Feb. 04, 2003
Filed:
May. 27, 1999
Applicant:
Inventor:
Romulo A. Prieto, Northville, MI (US);
Assignee:
Hayes Lemmerz International, Inc., Northville, MI (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B22D 3/700 ; B22D 1/704 ; B22D 1/732 ;
U.S. Cl.
CPC ...
B22D 3/700 ; B22D 1/704 ; B22D 1/732 ;
Abstract
A low pressure casting machine having a fill line connected between a thermally insulated chamber and a refractory furnace. A solenoid valve is included in the fill line and is selectively opened to allow gravity to fill the thermally insulated chamber to a predetermined level with molten metal. The thermally insulated chamber is subsequently pressurized to force molten metal from the chamber into a mold cavity to cast a metal component.