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:
Jul. 15, 1980
Filed:
Jan. 02, 1979
Paul E Stewart, Deerfield, IL (US);
The United States of America as represented by the Secretary of the Army, Washington, DC (US);
Abstract
A dual-mode firing mechanism for a high-rate-of-fire rifle capable of fir small arm cartridges conventionally by the application of a hammer, and inertially, bypassing the trigger mechanism, to provide sustained fire of a discrete number of cartridges in a burst. A trigger hammer fires the first round and simultaneously locks the firing pin in a firing position relative to an operating rod assembly. The operating rod assembly with the firing pin in the firing position, then cycles between a full forward or firing position and a short stroke rearward position in synchronism with fresh cartridges being inserted into the battery. The cycling continues until a last cartridge in the burst is fired. After the last round the mechanism returns to its original or non-firing position, and is ready for the next burst. The mechanism is rapid, for example, approximately 4,000 to 5,000 shots per minute can be fired in each three round burst.