US 2016/0023085 A1 · Surface Marking System for Competitive Throwing and Training

Abstract

Improvements in a marking system for use with competitively thrown objects such as discuses, shot puts, hammers and javelins. The marking system has a cavity which contains a marking agent which is automatically deposited from the cavity onto the ground when the thrown object hits the ground. The marking system is for competitive throwing and training to provide a system by the use of which the point of impact of a first object with a second object can be accurately, precisely, efficiently, durably, safely, and accountably marked on the second object by a marking agent born with the first object. The delivery mechanism can be implemented with various impacting objects including but not limited to discus, shot puts, hammers and javelins. This can be implemented in multiple fashions with each impacting object, including but not limited to centrally, radially, and circumferentially.

Claims20

Dependent claims

A marking discus comprising:

a discus body;
the discus body having at least one cavity within the discus body;
said at least one cavity having a marking agent disposed inside the at least one cavity wherein;
the at least one cavity being in external communication with the periphery of the body of the discus;
said at least one cavity further being in external communication with a top surface and a bottom surface, and
whereby the at least one cavity is configured to transfer the marking agent from within the at least one cavity to the periphery of the body, or to the top surface or to the bottom surface of the discus upon impact of the marking discus with another object.

3 more elements

Dependencies are inferred from the claim text.

Surface Marking System for Competitive Throwing and Training

Life of this patent

Surface Marking System for Competitive Throwing and Training

Life of this patent

Abstract

Claims20