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:
Aug. 30, 1988
Filed:
Nov. 13, 1986
Gerard D Sauvestre, Bourges, FR;
Abstract
The invention concerns a protective varnish applied to a caseless or combible-case round of ammunition against thermoinitiation. This varnish includes at least one reactive layer applied to the ammunition, consisting of a synthetic resin and an oxidizer with a decomposition temperature above 350.degree. C., and at least one insulating layer applied to the reactive layer consisting of a synthetic resin and a heat insulating compound. The resins are of the polyurethane, alkyd or oleophenolic type and the oxidizer is selected from the group constituted by potassium perchlorate, lead or barium chromate according to a percentage by mass varying from 1 to 20%. The insulating compound is represented by organic or mineral microballoons. The varnish may include an inner resin layer interposed between the ammunition and the reactive layer, an an outer resin layer applied to the insulating layer. Application to the rounds of ammunition of any caliber.