Loading patent…
AssigneeMaxtech Manufacturing Inc.
InventorsScott W. Allan, Maz A. Hasan, Satnam Singh, Kailash C. Vasudeva
Estimating the term…
A chuck for retaining the shank of a tool bit or accessory, having a fixed diameter, inserted in a central channel at a distal end of said chuck, comprising at least one torsion spring mounted axially within a housing and having an inner dimension and shape comparable to said shank's outer dimension and shape, and mechanical means for winding and unwinding said torsion spring to respectively grip or release said shank, said winding being in a rotational direction consistent with a normal operating rotational direction of said chuck such that said shank tends to further wind said torsion spring for further self-tightening in normal operation.
A chuck for retaining the shank of a tool bit or accessory inserted in a central channel at a distal end of said chuck, comprising at least one torsion spring mounted axially within a housing and having an inner dimension and shape comparable to said shank's outer dimension and shape, and mechanical means for winding and unwinding said torsion spring to respectively grip or release said shank.
A chuck for retaining the shank of a tool bit or accessory inserted into a central channel at a distal end of said chuck comprising a collet with at least two jaws mounted axially within a moveable sleeve, axial movement of said sleeve in one direction causing expansion of said at least two jaws to permit tool bit removal and axial movement in a second direction causing gripping of said tool bit by said device.
A chuck for retaining the shank of a tool bit or accessory inserted into a central channel at a distal end of said chuck comprising a collet with at least two jaws mounted axially within a moveable sleeve, fractional rotational movement of said sleeve in one direction causing expansion of said at least two jaws to permit tool bit removal and fractional rotational movement in a second direction causing gripping of said tool bit by said device.
Dependencies are inferred from the claim text.