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:
Mar. 17, 2020
Filed:
Jun. 12, 2015
Disa Industries A/s, Taastrup, DK;
Per Larsen, Søborg, DK;
Christoffer Bay, Præstø, DK;
Frederik Juhl Dynesen, Haslev, DK;
Henrik Wegge, Ringsted, DK;
Torben Hansen, Copenhagen S, DK;
Jonas Højslet, Valby, DK;
Søren Erik Knudsen, Værløse, DK;
DISA INDUSTRIES A/S, Taastrup, DK;
Abstract
The sand moulding machine () includes a moulding chamber () formed by a chamber top wall (), a chamber bottom wall (), two opposed chamber side walls and two opposed chamber end walls (). A chamber wall is provided with a sand filling opening () communicating with a sand feed system (). At least one of the chamber end walls is provided with a pattern plate () having a pattern (). At least one of the chamber end walls is displaceable in order to compact sand fed into the moulding chamber. A number of compressed air inlet openings () are located in a lower part of the moulding chamber and are arranged to form an upward airflow in at least a part of the moulding chamber in order to create an at least substantially fluidised bed of sand during a sand filling operation.