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:
May. 07, 2002
Filed:
Dec. 05, 2000
Ugo Gussalli Beretta, Brescia, IT;
Abstract
The invention concerns a gas operated shotgun made up of a barrel ( ) a cylinder ( ) attached to the barrel and a piston ( ) moving in the cylinder and along the guide rod ( ) between an advanced rest position and an active retracted control position for certain functional operations of the shotgun. The inside of the barrel communicates with the cylinder through at least one inlet ( ) for of a part of the propulsion gasses due to the movement of the piston to the active retracted position. A protective flap ( ) extends into the cylinder chamber towards the piston on the front of the same, which is placed in front of the gas entrance hole ( ) in said cylinder chamber partially covering and protecting the guide rod ( ) of the piston. The piston can also be furnished with a scraper ( ) to clean the rod.