Multiple-head tool

Details Multiple-head tool Multiple-head tool

1989-05-22

1991-05-28

Hartman, J. J.

Tools

Wrench, screwdriver, or driver therefor

Turret head

81438, 81437, B25B 1700

Patent

active

050184113

ABSTRACT:
Multiple-head tool such as a multiple-head screwdriver includes an electrically insulated handle; a shaft which has one end inserted into the handle; a multiple-headed bit which is mounted to rotate within a slot in the other end of the shaft; and an electrically insulated sleeve which is mounted to move along the shaft and to rotate about the shaft. In use, the multiple-head bit is rotated so that the desired head extends outward from and substantially parallel to the shaft and another tool or a spur is disposed within and substantially parallel to the slot. The sleeve is then moved down the shaft to cover at least a portion of the slot to enclose and hold the head or spur disposed therein rotationally fixed.

REFERENCES:
patent: 966529 (1910-08-01), Cunningham
patent: 1616300 (1927-02-01), Bido
patent: 4774736 (1988-10-01), Brawner et al.

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