Patent ID: 9694480
Date: 2017-07-04
CPC Classifications: B25B

Claim:
1. A nut-driving system, comprising: a) a mounting body, including: b) a driving body, hollow cylindrical and slideably connected over the mounting body's driving spindle, wherein the lower retainer provides a stop to a sliding movement of the driving body in the direction of the shank, the driving body constructed with two internal bore portions forming a step therebetween, including a first internal bore portion defining a guide portion which matches an exterior shape of the driving spindle and slideably connects the driving body with the mounting body so that the driving body can slide between a rear position established by the lower retainer defining a normal position, and a front position defining a cleaning position and a second bore portion defining a spring cavity and a nut cavity; c) a compression spring, mounted on the driving spindle set within the spring cavity, seated between the upper retainer and the step so that the spring pushes the driving body toward the lower retainer to said normal position.