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:
Sep. 13, 1977
Filed:
Jul. 23, 1976
William P Wohlford, Bettendorf, IA (US);
The United States of America as represented by the Secretary of the Army, Washington, DC (US);
Abstract
A high velocity driver is made with a liner between the propellant and li gas medium within a cartridge casing. This casing is reduced in length and made wider to accommodate the same desired gas and propellant volume. The liner is folded over so as to form a cylinder of propellant between a central cylinder and an annular cylinder of light gas medium. The explosive gases from the propellant thus expand the liner against the light gas medium in two directions, thereby utilizing more explosive gas energy to compress the light gas medium and thus create a higher velocity ejection of the projectile from the gun barrel.