Patent ID: 7648391

Claim:
A shaft lock socket system comprising: a housing defining a receiving chamber; at least a power socket received in the receiving chamber, the power socket being installed with a gap between the back surface of the power socket and the inward portion of the receiving chamber; and at least an adjusting member arranged in the gap formed by the back surface of the power socket and the inward portion of the receiving chamber and has a distal end to abut against the back surface of the power socket and another end to be in contact with the inward portion of the receiving chamber, for adjusting the tightness between the power socket and the housing to a proper level, in order to reduce resonance vibration within the power socket in response to small vibrations due to the flow of current, wherein a distance of the gap is equal to a length between the distal end and a surface of the inward portion of the receiving chamber associated with the gap.