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. 14, 2006
Filed:
Aug. 11, 2004
Dominik Baumgartner, Blonay, CH;
Dominik Baumgartner, Blonay, CH;
Fondarex SA, St. Legier, CH;
Abstract
A die casting machine or an injection molding machine comprises a pressure member, such as a casting piston in a shot sleeve or extruder screw in an extruder barrel. A control unit is associated to this pressure member and/or to a filling system for filling the shot sleeve or the barrel. Moreover, an evacuation device is provided which includes a vacuum valve that communicates with the cavity of the die or mold, on the one hand, and a vacuum conduit on the other hand. This vacuum valve may be moved from an open position interconnecting the cavity and the vacuum source, and a closed position. There is a control connection between the control unit and the valve. The positions of the valve can be controlled by a material sensor located in its region and associated to it, the sensor supplying a closure signal to the valve through an output line. This output line, however, is also coupled to the control unit for influencing and controlling at least one of its controlled parts, i.e. pressure member and/or filling system.