Abstract: A target for grade metal tipped darts has a conductive rigid web made up of concentric rings intersecting spokes emanating from the second to the innermost ring. The spokes define twenty sectors, while the rings define 4 segments within each sector. There are also two segments in the innermost and second to innermost rings. Conductive blocks, made up of an aluminum or zinc cup having contacts protruding from its bottom and containing a rubberized cork insert, fill in the segments of the web. Beneath each cup is a silicon foam cushion cut away between the contacts and a pad on a printed circuit board. The pads are each connected to circuitry that senses when a dart hits an insert causing the corresponding cup to slide within the web and contact a pad.
Abstract: A target for regulation grade metal tipped darts has a conductive rigid web made up of concentric rings intersecting spokes emanating from the second to the innermost ring. The spokes define twenty sectors, while the rings define 4 segments within each sector. There are also two segments in the innermost and second to innermost rings. Conductive blocks, made up of an aluminum or zinc cup having contacts protruding from its bottom and containing a rubberized cork insert, fill in the segments of the web. Beneath each cup is a silicon foam cushion cut away between the contacts and a pad on a printed circuit board. The pads are each connected to circuitry that senses when a dart hits an insert causing the corresponding cup to slide within the web and contact a pad.
Type:
Grant
Filed:
May 9, 1994
Date of Patent:
January 23, 1996
Assignee:
High Flyte International Ltd.
Inventors:
Mark F. Stewart, Angelo A. Bonetta, Majinder S. Phull