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. 09, 2019
Filed:
May. 10, 2017
The United States of America As Represented BY the Secretary of the Army, Washington, DC (US);
Dongkyun Park, Dover, NJ (US);
Joseph Laquidara, Westwood, NJ (US);
Viral Panchal, Parlin, NJ (US);
Ryan Ordemann, Verona, NJ (US);
Carlton Adam, Newton, NJ (US);
Robin Crownover, Rockaway, NJ (US);
The United States of America as Represented by the Secretary of the Army, Washington, DC (US);
Abstract
The present invention is directed to propellant grains having multiple layers consisting of an outer, slow burning, layer composition and an inner, fast burning, layer with desirable progressivity burn rates. The outer, slow burning, layer comprising a first energetic material, a first plasticizer and a first binder and an inner, fast burning, layer comprising a second energetic material, and the same plasticizer as the outer layer, and a second binder. The compositions in the propellant grain provided herein provides for a burn rate energy differential between the outer, slow burning, layer and inner, fast burning, layer of at least 2.