Nut driver

An apparatus for providing an output torque, the apparatus comprising:

• a planetary gear system operably transmitting output torque to a first threaded fastener;
• an outer socket having a first end and a second end, the first end being coupled to the planetary gear system and the second end being configured to be coupled to the first threaded fastener;
• and
• an inner socket coaxially mounted inside the outer socket;
• wherein the inner socket is configured to operably engage a second threaded fastener that is complementary to the first threaded fastener to maintain a fixed orientation of the second threaded fastener and the outer socket operably provides a rotational torque to the first threaded fastener thereby tightening the first threaded fastener and second threaded fastener together;
• and
• wherein the planetary gear system has a drive gear that rotates about a center axis of rotation and has a channel and further including a spring having a first end and a second end, the first end is supported within the drive gear channel and the second end abuts the inner socket such that the spring provides a reaction force to the inner socket in response to an opposite force applied to the inner socket along direction of the center axis of rotation.

A system for rotating a first threaded fastener which couples to a second threaded fastener, the system comprising:

• (a) a set of pulse guns;
• (b) a nut driver attachment including:
• (i) a housing operably forming a cavity, the housing having a gun coupler operably attaching to one of the set of pulse guns, the gun coupler being interchangeably operably attachable to each pulse gun of the set of pulse guns;
• (ii) a planetary gear system operably transmitting an output torque, the planetary gear system having an output gear;
• (iii) a socket operably applying the output torque to the first fastener, the socket being coupled to the output gear;
• (iv) a center socket being substantially coaxial with the output gear, the center socket being rotationally fixed and supported by the housing;
• and
• (v) a fitting disposed in the housing and having a fitting channel and a support pin, the fitting channel being sized and shaped to retain the support pin such that the support pin adjustably abuts a shaft portion of the center socket, the support pin operably preventing substantial rotation of the center socket;
• wherein the center socket is operably coupled to the second threaded fastener to maintain a fixed orientation of the second threaded fastener and the socket is operably coupled to the first threaded fastener to provide a torque thereby fastening the threaded fasteners together.