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. 27, 1991
Filed:
Oct. 25, 1989
Karl-Egon Janssen, Meerbusch, DE;
Heinz-Gunter Breuer, Duisburg, DE;
Rheinmetall GmbH, Dusseldorf, DE;
Abstract
It is known to arrange a breech mechanism for a gun so as to be displaceable within a parallel guide arranged at a right angle to the bore axis of the gun barrel, and to bring a mushroom shaped head for obturation to the chamber in a partial circular arc. Due to the plurality of drive means for the mushroom head, complicated motion sequences result within the breechblock system which may lead to increased susceptibility to malfunction and do not permit high firing rates. Such a breech mechanism is not suitable or the use of a highly elastic obturator disposed in the gun barrel. The invention makes it possible to provide a wedge-shaped insert (12), which is to seal an elastic obturator (8) disposed at the end of the gun barrel (3), so as to be movable on a sloped slide face (10) of a breechblock (9) which is guided in parallel in the breech ring (5) and is movable transversely to the bore axis (2) of the gun barrel, and to utilize the movement of the breechblock (9) in a simple manner initially for the closing stroke and thereafter for the sealing stroke of the wedge-shaped insert (12) exclusively in the direction of the bore axis. Since the sealing stroke takes place exclusively in the direction of the bore axis (2), it is possible to realize a uniform and defined tension in the obturator (8).
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile