Reversible roller wrench with a scalloped outer race

A torque transfer device comprising:

• a handle;
• an outer race attached to the handle, the outer race comprising an inner surface;
• a spindle comprising an inner race, the inner race comprising an outer surface;
• a plurality of rollers;
• a roller cage bias ring located within a space defined by the inner surface of the outer race and the outer surface of the inner race, wherein the roller cage bias ring comprises a base ring and a plurality of pillars extending out of the base ring, wherein the base ring is an annular ring, wherein each pillar is connected to the base ring at a first end, wherein the second end is opposite the first end, and wherein each roller is movably positioned between adjacent pillars, wherein each pillar is configured to physically engage two adjacent rollers alternately but not at the same time;
• wherein the inner surface of the outer race is scalloped and does not move relative to the handle, each roller being movably positioned within a corresponding scallop, and wherein each pillar is configured to simultaneously urge a corresponding roller distinct from every other roller into a position on the scalloped outer race;
• a backplate configured to couple to the handle and cover the roller cage bias ring, wherein the backplate comprises a recessed circular trench and an aperture, wherein the recessed circular trench concentrically aligns with the roller cage bias ring;
• wherein the bias ring is configured to move within a space between the inner race of the spindle and the outer race of the handle, said movement causing at least one pillar to movably engage a respective roller to facilitate the frictional engagement of the respective roller with both the inner race and the outer race;
• and
• a reverse lever movably coupled to the handle, wherein the reverse lever is configured to extend through the aperture of the backplate and mechanically interface with the roller cage bias ring, and further comprising a spring disposed within a hole in the handle, wherein the spring is configured to apply a retention force against the reverse lever to prevent movement of the knob.

A torque transfer device comprising:

• a handle;
• an outer race attached to the handle, the outer race comprising an inner surface, the inner surface comprising a plurality of scallops;
• a spindle comprising an inner race, the inner race comprising an outer surface;
• a plurality of rollers;
• a roller cage bias ring positioned within a space defined by the inner surface of the outer race and the outer surface of the inner race, wherein the roller cage bias ring comprises a base ring and a plurality of pillars extending out of the base ring such that each pillar is connected to the base ring at a first end, wherein each roller is movably positioned between adjacent pillars, and wherein each roller is positioned adjacent one scallop, and wherein each pillar is configured to alternatively physically engage two adjacent rollers but not at the same time;
• a backplate configured to couple to the handle and cover the roller cage bias ring, wherein the backplate comprises a recessed circular trench and an aperture, wherein the recessed circular trench concentrically aligns with the roller cage bias ring;
• and
• a reverse lever, wherein the reverse lever is operably engaged with the roller cage bias ring through the aperture of the backplate such that movement of the reverse lever causes the at least one pillar to movably engage a first roller to facilitate the frictional engagement of the first roller with the inner race and the outer race in a first position of the reverse lever and said movement of the reverse lever causing the at least one pillar to movably engage a roller adjacent the first roller to facilitate the frictional engagement of the adjacent roller with the inner race and the outer race in a second position of the reverse lever.