Method and apparatus for hanging lights and other fixtures
a technology of hanging lights and other fixtures, applied in the direction of lighting and heating apparatus, screws, lighting support devices, etc., can solve the problems of inability to easily remove, inability to adapt devices to use the same drill chuck, and inability to seal the insert in place, etc., to achieve the effect of easy removal for repair or replacemen
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[0015] Referring to FIG. 1, an exploded view of the drill bit and chuck of a preferred embodiment of the invention is illustrated. The drill chuck 11 is removably attached to drill 12 and has a cylindrical central portion 11a, an end portion 11b which is attached to the drill, and a pair of driver arms 11c which are approximately parallel to each other and extend from the end of the chuck opposite to end portion 11b.
[0016] Drill bit 13 has a hollow cylindrical portion 13a which has a centrally located arm 13b which extends into the center of the cylinder. Driver arms 11c are slidably inserted into the drill over arm 13b and are slidably removable therefore but not rotatable relative thereto, thereby providing a drivable connection between the drill bit and the drill.
[0017] Extending from cylinder 13a is a drill bit 13c which has first and second pairs of opposing blades 13d and 13e. The blades 13d are of the same size and shape as are blades 13e. Blades 13d are longer than blades ...
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