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US 6,386,803 B1Granted
Drill for inexperienced users
AssigneeDuPage Children's Museum
InventorsRichard Sparber, Paul E. Maass
Life of this patent
Estimating the term…
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AssigneeDuPage Children's Museum
InventorsRichard Sparber, Paul E. Maass
Estimating the term…
A drill (100) for drilling a material (104) with a drill bit (102) which is specially adapted for use by inexperienced users is provided. The drill (100) includes a rotatable helix screw (132) having a helix groove (134). A support block (136) travels up and down the helix screw (132) when the helix screw (132) is rotated via a handle section (120). A key pin (138) is mounted in the support block (136) to ride in the helix groove (134). Preferably, the center of mass of the support block (136) is tangential to the helix screw (132). A short level section (304) is formed in the bottom of the helix groove (134) such that the key pin (138) rests in the level section (304) when not in use. The drill (100) may comprise an overhead support mechanism (108) for rotatably supporting the drill (100).
A drill having a drill bit for drilling material and comprising:
A drill having a drill bit for drilling into a material and comprising:
A drill having a drill bit for drilling material and comprising:
A drill having a drill bit for drilling into a material and comprising:
Dependencies are inferred from the claim text.