Marker mechanism
AssigneeRegency Paintball Handelsbolag
InventorPer Fredrick Spets
Life of this patent
Estimating the term…
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.
Claims6
Bolt 101 for a gas powered marker 1 wherein said bolt 101 comprises a hollow stepped body 103 with a first bolt end 105 and a second bolt end 107 separated by a tubular bolt wall 109 of length BL characterised in that said tubular bolt wall 109 comprises:
- a first longitudinally-extending section 111, of external diameter BD1 and internal diameter Bd1, which extends from said first bolt end 105 a distance BL1 towards said second end 107;
- a second longitudinally-extending section 113, of external diameter BD2 and internal diameter Bd2, which extends from said first longitudinally-extending section 111 a distance BL2 towards said second bolt end 105;
- wherein external diameter BD2 is greater than internal diameter Bd2 which is greater than external diameter BD1.
Gas powered marker comprising a bolt guide 117 and a bolt in accordance with any of the previous claims slideably mounted on said bolt guide 117,
- characterised in that said bolt guide 117 comprises a stepped body 119 with a first end 121 and a second end 123 separated by a wall 125 of length GL,
- wherein said body 119 comprises:
- a first longitudinally-extending section 127 with a maximum external diameter GD1 which extends from said first end 21 a distance GL1 towards said second end 123;
- a second longitudinally-extending section 129 of maximum external diameter GD2 which extends from said first longitudinally-extending section 127 a distance GL2 towards said second end 123;
- a third longitudinally-extending section 131 of external diameter GD3 which extends from said second longitudinally-extending section 129 a distance GL3 towards said second end 123;
- and
- a longitudinally-extending internal chamber 133 which is closed at said first end and open at said second end 123;
- wherein:
- GD1 is less than GD2 which is less than GD3;
- and
- GD2 is less than Bd2 which is less than GD3.
Dependencies are inferred from the claim text.