公开(公告)号：US20090013984A1

公开(公告)日：2009-01-15

申请号：US12141254

申请日：2008-06-18

Applicant: Per Fredrick Spets

Inventor： Per Fredrick Spets

IPC: F41B11/00 ,  F41B11/32 ,  F41B11/06

CPC classification number: F41B11/721

Abstract: A gas powered marker comprises a stepped bolt which is projected forward during firing by compressed gas in a chamber acting on a rearward facing surface of the bolt and which is projected backwards by compressed gas in a chamber acting on a forward facing surface of the bolt. In the rearmost position the force acting on the forward facing surface is greater than the force on rearward facing surface and firing of the marker is achieved by venting to atmosphere the compressed gas acting on the rearward facing surface.

Abstract translation: 气体动力标记包括阶梯螺栓，其在作用在螺栓的向后表面上的腔室中的压缩气体在燃烧期间向前突出，并且在作用在螺栓的前向表面上的腔室中被压缩气体向后突出。 在最后面的位置，作用在向前表面上的力大于向后表面上的力，并且通过向作用在面向后表面上的压缩气体排放到大气中来实现标记的点火。