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:
Mar. 07, 2023
Filed:
Dec. 12, 2019
Saab Ab, Linköping, SE;
Michael Carlsson, Karlskoga, SE;
Mats Runemård, Kristinehamn, SE;
Erik Fohrman, Falkoeping, SE;
Owe Englund, Karlskoga, SE;
SAAB AB, Linkoeping, SE;
Abstract
The invention relates to a method of delaying a mechanism in a firearm and a delay unit for a projectile comprising i) a first and a second pressure chamber () arranged to receive combustion gases in a firearm via at least one inlet () arranged to each of said first and second pressure chambers () following firing of a projectile ii) at least one outlet for transferring the combustion gases (), arranged to each of said first and second pressure chambers (), to a piston chamber in which a displaceable piston () is arranged dividing the piston chamber into a compartment () having a volume Vupstream the piston () and a compartment () having a volume Vdownstream the piston (), wherein said at least one outlet () from the first and second pressure chambers () are arranged to transfer said combustion gases to said compartments () of said piston chamber to provide an overall pressure difference between compartments () and () pressing the piston () at an initial idle position downstream whereby the volume Vof compartment () is reduced and whereby the piston () being pressed downstream towards an end position actuates a function at a predetermined point in time following firing of a firearm.