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:
Oct. 06, 1981
Filed:
Jun. 06, 1979
Gerhard Hupp, Oberndorf, DE;
Helmut Mader, Schramberg, DE;
Mauser-Werke Obendorf GmbH, , DE;
Abstract
An automatic firearm and particularly a gas operated weapon comprises a cartridge feeding system which operates upon movement of a reciprocating breech block during recoil and counter recoil to feed a series of cartridges in succession to the cartridge chamber of the gun barrel under the control of gas pressure which is generated during the firing of each cartridge. The cartridge feeding mechanism includes a drive head having a rotatable bushing which is driven by a gear drive and with an end drive face which has an engagement slot therein formed with inwardly tapering walls in a direction inwardly of the drive face. A cartridge feed mechanism is pivoted to the drive head and it may be positioned in engagement with the drive head or removed for purposes of changing ammunition. The cartridge feed mechanism includes a drive hub with a transfer element in said hub which has an outwardly tapered couplng portion which is engageable in the slot of the drive face of the rotatable bushing.