Patent ID: 6524201
Filing Date: 2003-02-25
Classification: F42B

Abstract:
A dart, comprising:a barrel having an axis and first and second ends, and a bore opening into at least one end, said bore being parallel to the axis, said bore ending in a concave wall within the barrel, and having internal threads surrounding at least a portion of said bore; an end cap having external threads for engagement with said internal threads of said bore, said end cap having a through passage along said axis when the end cap is engaged with the bore; a dart shaft assembly, having a shaft portion, and a collar at one end, the shaft portion slidably received within said through passage of said end cap, and extending away from the dart barrel; the collar of a size too large to pass through said through passage, the collar retained between the end cap and concave wall; an elastomeric cylinder received in the bore, and in compressive contact between the concave wall and collar when the end cap is threadedly engaged in the bore, the elastomeric cylinder having a diameter, and the bore having a diameter greater than the elastomeric cylinder, to allow side-to side flexure of the elastomeric cylinder relative to said axis, in response to forces applied to said dart shaft which can be both parallel and non-parallel to said axis.