Patent ID: 9233297
Filing Date: 2016-01-12
CPC Classification: A63B,A63C,G01B

Claim Text:
1. A device for setting up positions for first, second, third and home bases on an infield having a center point defining a center of the four bases, said device comprising: an integrated unit comprising a center marking piece adapted to be positioned at the center point of the infield attachable to four base marking pieces adapted to define the positions of respective bases of the infield from the center point, each base marking piece being attached to the center marking piece by a first reeled cord that is unwindable to a predetermined center-to-base total length connecting between the base marking piece and the center marking piece to define the position of the respective base from the center point, and is rewindable to bring the base marking piece for reattachment to the center marking piece to form the integrated unit.