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:
Jun. 10, 1997
Filed:
Aug. 02, 1994
Applicant:
Inventors:
Ferdinand Althausen, Neunkirchen-Seelscheid, DE;
Helmut Duschanek, Konigswinter, DE;
Bodo Buchel, Konigswinter, DE;
Kurt Pieper, Troisdorf, DE;
Werner Kraft, Bad Honnef, DE;
Assignee:
Maschinenfabrik Hennecke GmbH, Leverkusen, DE;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C08F / ;
U.S. Cl.
CPC ...
422133 ; 422131 ; 422224 ; 264 455 ; 4285428 ;
Abstract
A process and device for foaming casings, particularly refrigerator casings, with a blowing agent which can form an explosive mixture with atmospheric oxygen during evaporation which reduce the risk of explosion by introducing inert gas into the space in which the foam is to be formed by means of a servo-controlled inlet valve.