Tool chuck having dust seal
AssigneeJacobs Chuck Technology Corporation
InventorGlenn L. Salpaka
Life of this patent
Estimating the term…
Abstract
A tool chuck is provided for rotary power tools that includes a dust seal for reducing the quantity of dust and cuttings entering the chuck mechanism. The tool chuck features an endcap affixed to the chuck body and a circular brush may be either permanently or removably engaged to the endcap. The circular brush comprises a multiplicity of either metallic or plastic bristles that contact the shank of a tool bit engaged in the tool chuck.
Claims9
A tool chuck for holding a bit having a shank and a longitudinal axis on a rotary power tool, the tool chuck comprising:
- a chuck body having a first endface and a central bore, the central bore having a longitudinal axis;
- means for engaging the bit in the central bore of the chuck body so that the longitudinal axis of the bit coincides with the longitudinal axis of the chuck body;
- a circular brush comprised of a multiplicity of radially inward extending bristles, the multiplicity of inward extending bristles having free ends that define a circular aperture having a center;
- and
- means for engaging the circular brush to the tool chuck comprising a tube having an inverted end portion, the inverted end portion defining a flange that captures the circular brush against the first endface so that the center of the aperture is collinear with the longitudinal axis of the central bore and the free ends of the multiplicity of radially inward extending bristles contact the shank of the bit.
A tool chuck for holding a bit having a shank and a longitudinal axis on a rotary power tool, the tool chuck comprising:
- a chuck body having a first endface and a central bore, the central bore having a longitudinal axis;
- means for engaging the bit in the central bore of the chuck body so that the longitudinal axis of the bit coincides with the longitudinal axis of the chuck body;
- a circular brush having a proximal face and distal face, the circular brush comprised of a multiplicity of radially inward extending bristles, the multiplicity of radially inward extending bristles having free ends that define a circular aperture having a center;
- and
- means for removably engaging the circular brush to the tool chuck comprising a first surface that contacts the proximal face and a second surface that contacts the distal face to capture the circular brush between the first and second surfaces so that the center of the aperture is collinear with the longitudinal axis of the central bore and the free ends of the multiplicity of radially inward extending bristles contact the shank of the bit.
Dependencies are inferred from the claim text.