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. 06, 2004
Filed:
Jun. 07, 2002
Andrew L. Dargavell, Oxford, MI (US);
Gregg S. Evans, Windsor, CA;
Intertec Systems, Troy, MI (US);
Abstract
A multi element moving vacuum chamber (MEMVC) for rotational casting includes a mold having a predefined shape and an axis of rotation, and a box containing casting material. The MEMVC further includes a first vacuum element mounted to an outer mold surface and a second vacuum element mounted to an outer box surface. The mold and the box are detachably engageable with each other to define an engaged configuration in which air present in an enclosed area defined by the outer mold surface and an inner surface of the first vacuum element, by an inner mold surface and an inner box surface, and by the outer box surface and an inner surface of the second vacuum element, is removed to create a vacuum. Alternatively, the mold and/or the box may be constructed with vacuum loading capability, thereby eliminating the need for the first and/or the second vacuum elements.