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. 03, 2005
Filed:
Aug. 29, 2002
William G. Hesterberg, Rosendale, WI (US);
Dean A. Wickman, Green Lake, WI (US);
Thomas D. Blum, Fond du Lac, WI (US);
Howard W. Beumler, Jr., Fond du Lac, WI (US);
William G. Hesterberg, Rosendale, WI (US);
Dean A. Wickman, Green Lake, WI (US);
Thomas D. Blum, Fond du Lac, WI (US);
Howard W. Beumler, Jr., Fond du Lac, WI (US);
Brunswick Corp., Lake Forest, CA (US);
Abstract
A sprue structure is specifically designed to facilitate the rapid filling of molded polystyrene patterns with molten metal. It comprises a down sprue and parallel columnar members that are connected to the down sprue. The flow of molten metal is initially downward through the first columnar member and then it reverses direction to flow upwardly through second and third columnar members so that the patterns to be cast receive molten metal as it travels upwardly through the second and third columnar members. This decreases the amount of pyrolyzation products that could otherwise flow through in-gates and into the patterns to be cast.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile