Patent ID: 9412979
Filing Date: 2016-08-09
CPC Classification: A63B,H01M,H05K,Y02E,Y10T

Claim Text:
1. A device for attachment to a swinging instrument, comprising: a cover, a base including a fastening portion and a support portion, a chassis for supporting a printed circuit board, positive and negative electrical contacts, and a cap configured and dimensioned to mate relative to the support portion of the base, wherein the support portion supports the chassis, the printed circuit board, the positive and negative electrical contacts, and the cap, wherein the cover is configured and dimensioned detachably interlock relative to the base to cover the chassis, the printed circuit board, the positive and negative electrical contacts, and the cap, wherein in the mated configuration, the cap and the base form a battery opening configured and dimensioned to receive therethrough a battery, and wherein the positive electrical contact comprises a body, first and second walls extending from the body, and extensions extending from the first and second walls, the first wall being asymmetrical relative to the second wall.