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. 27, 2001
Filed:
Apr. 14, 1999
Applicant:
Inventors:
Carlo Fiorentini, Saronno, IT;
Anthony C. M. Griffiths, Kato Paphos, CY;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29C 4/428 ; B29C 4/450 ;
U.S. Cl.
CPC ...
B29C 4/428 ; B29C 4/450 ;
Abstract
A process and a system for the continuous manufacture of polymeric foams. Reactive chemical components and additives comprising a low boiling blowing agent are mixed under pressure; the mixture is then frothed before chemical reaction takes place by feeding the mixture through a pressure equalizing and frothing device having a pressure-drop zone opening into a frothing cavity having an output aperture to discharge the froth onto a moving substrate.