Patent ID: 9555530
Date: 2017-01-31
CPC Classifications: B25C

Claim:
1. A fastener driving apparatus for driving a fastener into a substrate, the apparatus comprising: a power source; a control circuit, said control circuit operatively coupled to said power source; a motor, said motor operatively coupled to said power source, said motor responsive to said control circuit; an extensible polymer assembly; a linear motion converter, said linear motion converter operatively coupled to said motor, said linear motion converter operatively coupled to said extensible polymer assembly; a fastener drive assembly; an anvil, said anvil operatively coupled to said fastener drive assembly; a retention means, said retention means retaining said fastener drive assembly in a first position until a sufficient force is applied against said retention means or until a retention force of said retention means is released; and a guide structure, said extensible polymer assembly capable of reciprocally moving within said guide structure, said fastener drive assembly capable of reciprocally moving within said guide structure, wherein during a drive cycle said linear motion converter actuates said extensible polymer assembly such that energy is stored as said extensible polymer of said extensible polymer assembly extends in length and force from said extensible polymer is applied on said fastener drive assembly, and when said extensible polymer reaches a sufficient extension, said retention means releases said fastener drive assembly and wherein said fastener drive assembly moves from a first position to a second position such that said anvil is capable of driving a fastener into a substrate.