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:
Jan. 05, 1988
Filed:
Jul. 11, 1986
Applicant:
Inventors:
John M Urbanic, Churchill Borough, PA (US);
Jan H Van Linden, Allison Park, PA (US);
Assignee:
Aluminum Company of America, Pittsburgh, PA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B22D / ; F16L / ;
U.S. Cl.
CPC ...
222590 ; 222591 ; 222600 ; 164337 ; 266236 ; 138123 ;
Abstract
A value for controlling the flow of molten metal which includes a tubular conduit through which the metal flows and apparatus for applying a force against the exterior of the conduit to vary the size of the cross-sectional area of the opening through the conduit and thereby control the volume of metal flowing through the conduit.