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:
Apr. 15, 2014
Filed:
Nov. 30, 2011
Niloufar Faridi, Melville, NY (US);
Linjie Zhu, Livingston, NJ (US);
Ming-wan Young, Basking Ridge, NJ (US);
Costas G. Gogos, Wyckoff, NJ (US);
Fei Shen, North Arlington, NJ (US);
Elbert Caravaca, Budd Lake, NJ (US);
Mohamed Elalem, East Orange, NJ (US);
Viral Panchal, Parlin, NJ (US);
Dale Conti, Flanders, NJ (US);
Niloufar Faridi, Melville, NY (US);
Linjie Zhu, Livingston, NJ (US);
Ming-Wan Young, Basking Ridge, NJ (US);
Costas G. Gogos, Wyckoff, NJ (US);
Fei Shen, North Arlington, NJ (US);
Elbert Caravaca, Budd Lake, NJ (US);
Mohamed Elalem, East Orange, NJ (US);
Viral Panchal, Parlin, NJ (US);
Dale Conti, Flanders, NJ (US);
The United States of America as Represented by the Secretary of the Army, Washington, DC (US);
Abstract
A method of manufacture of foamed celluloid molded products, involving three steps for the manufacture of higher density (0.7 to 1.25 gm/cc) foamed celluloid products or simple geometry lower density (0.2 to 0.7 gm/cc) foamed celluloid products, and four steps for the manufacture of lower density foamed celluloid products of any geometry. The three step process involving: (1) providing small, uniform, pieces of celluloid; (2) presoaking the pieces in a physical blowing agent (PBA) under pressure; and (3) foaming at raised temperature a controlled quantity of the presoaked pieces in a mold—to obtain the desired shape and density. For a lower density foamed celluloid product, of any moldable geometry, the steps are to: (1) small pieces of celluloid, that (2) have been presoaked in a PBA, are (3) pre-expanded to an intermediate density, and then (4) foam the desired lower density foamed product in a mold at raised temperature.