Buoyant hand tool with enhanced connection effect

Details Buoyant hand tool with enhanced connection effect Buoyant hand tool with enhanced connection effect

2009-07-13

2011-11-15

Thomas, David B (Department: 3723)

Tools

Wrench, screwdriver, or driver therefor

Handle or shank

C081S489000

Reexamination Certificate

active

08056450

ABSTRACT:
The present invention provides a buoyant hand tool including a handle formed with an internal air chamber and a shank having an insertion end inserted in the handle. The buoyant hand tool further includes a sleeve disposed in the air chamber of the handle. The insertion end of the shank is extended into the air chamber and inserted in the sleeve. Accordingly, the connection strength between the handle and the shank is increased to enhance operation torque of the hand tool.

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patent: 2008/0229890 (2008-09-01), Chen
patent: 2009/0077754 (2009-03-01), Hsieh

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