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:
May. 18, 2004
Filed:
Jun. 28, 2002
Applicant:
Inventors:
Ralph E. Vining, Brooklyn, MI (US);
D. Matthew Walukas, Ypsilanti, MI (US);
Raymond F. Decker, Ann Arbor, MI (US);
Assignee:
Thixomat, Inc., Ann Arbor, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B22D 1/700 ;
U.S. Cl.
CPC ...
B22D 1/700 ;
Abstract
A vessel for processing feed stock material into molten or semi-molten state. The vessel includes a body defining an interior surface, an inlet, for receiving the feed stock material and an outlet discharging the material. The sidewall of the body comprises three layers, referred to as the shell, an intermediate layer and a liner. The intermediate layer is disposed between the shell and the liner and is formed of material softer than the materials forming the shell and the liner. The presence of the intermediate layer minimizes the thermal gradient along the thickness of the barrel.