USRE051070 - Primer for firearms and other munitions

The patent describes a primer for firearms that features a substrate coated with alternating layers of metal oxide and reducing metal, designed to react upon impact. Additionally, a carbide-containing ceramic layer is incorporated within these layers, which ignites as a result of the reaction between the metal components.

Claim 1

1 . A primer, comprising: a substrate having a deposition surface and a rear surface; alternating layers of metal oxide and reducing metal deposited upon the substrate, the alternating layers of metal oxide and reducing metal being structured to react with each other in response to an impact applied to the rear surface of the substrate; and a carbide-containing ceramic layer within the alternating layers of metal oxide and reducing metal; whereby, when the alternating layers of metal oxide and reducing metal react with each other, the carbide-containing ceramic layer is ignited by the reaction between the reducing metal and metal oxide. a substrate having a deposition surface and a rear surface; alternating layers of metal oxide and reducing metal deposited upon the substrate, the alternating layers of metal oxide and reducing metal being structured to react with each other in response to an impact applied to the rear surface of the substrate; and a carbide-containing ceramic layer within the alternating layers of metal oxide and reducing metal; whereby, when the alternating layers of metal oxide and reducing metal react with each other, the carbide-containing ceramic layer is ignited by the reaction between the reducing metal and metal oxide.

Google Patents

https://patents.google.com/patent/USRE051070

USPTO PDF

https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/RE051070