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:
Dec. 20, 2011
Filed:
Aug. 09, 2005
Thomas Freser-wolzenburg, Adelheidsdorf, DE;
Eberhard Puschmann, Nienhagen, DE;
Georg-wilhelm Prahst, Lauenau, DE;
Maik Grossmann, Adelheidsdorf, DE;
Thomas Freser-Wolzenburg, Adelheidsdorf, DE;
Eberhard Puschmann, Nienhagen, DE;
Georg-Wilhelm Prahst, Lauenau, DE;
Maik Grossmann, Adelheidsdorf, DE;
Stankiewicz GmbH, Adelheidsdorf, DE;
Abstract
A method of producing a sound insulation molding with mass and spring, wherein both mass and spring are produced on the basis of the same material, in particular polyurethane. For the formation of a mass, reaction substances and fillers are brought into a mold, in particular sprayed in or injected, and brought to reaction. The spraying in or injection is thereby controlled such that the reaction substances and the fillers are supplied in locally different quantity and/or composition into the mold, dependent upon the sound damping to be locally achieved together with the spring, which is then formed on the so-formed mass in the same mold through formation of foam. Through this, with surfaces to be sound insulated which are of the same geometry, three-dimensional moldings of the same geometry can be produced with both different acoustic and also mechanical behavior in predetermined series.