发明名称 PRACTICE HOCKEY PUCK
摘要 <p>The present invention is a practice hockey puck (10) to improve the development of passing and shooting skills 'skaters' and puck-saving skills of 'goalies'. The puck is the same shape as a standard puck. It has a hollow body filled with removable material (12) that allows the user to change the puck's weight. The material can be removed or inserted at the discretion of the user, so as to provide a wide range of training weights, from less than half up to more then twice that of a standard 170-gram (6-ounce) puck. A detachable cover (14) is connected to the main body of the puck to keep the weighted material inside the cavity. Additionally, a number of linear marking (36) on the surfaces and edge of the puck allow the user to monitor and analyze the spin of the puck, and thus determine how the shot could be improved.</p>
申请公布号 WO1993020910(A1) 申请公布日期 1993.10.28
申请号 US1993002687 申请日期 1993.03.20
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