Back to results
US 4,790,541 AGranted
Method of manufacturing a dartboard
OwnerShih-Chung Lininventor
Life of this patent
Estimating the term…
Abstract
A bundle of skinned, longitudinally torn straws is cut transversely into pieces having predetermined thickness. The pieces are placed into an open topped dartboard contoured frame and compressed from top to bottom and around the periphery. The pieces are then allowed to expand and rearrange in the frame. The surface of the transverse pieces are surface-ground and marked to depict a dart target pattern. Finally, a netting which corresponds to the marked pattern is provided on the ground surface.
Claims2
A method of manufacturing a dartboard comprising:
- (a) providing a bundle of skinned straws each of which is torn into longitudinal pieces;
- (b) transversely cutting said bundle of straws into pieces having a predetermined thickness;
- (c) putting said transverse pieces in step (b) into a dartboard-contouring frame having an open top;
- (d) compressing said frame from the top and bottom thereof and around the periphery thereof;
- (e) allowing segments of said longitudinal pieces in said transverse pieces to finally expand and rearrange in said frame for a predetermined period of time;
- (f) surface-grinding said transverse pieces from said open top;
- and
- (g) marking said transverse pieces on the ground surface thereof to obtain a final dartboard.
5 more elements
Dependencies are inferred from the claim text.