Black Decker Inc.

Qingyang Li

Peter Chaikowsky

Michael P Kunz

Yaping Yang

Sean M Kelly

Joshua J Aiken

Yuelong Xu

Xiaomei Zheng

A guard assembly for an abrasive accessory of a power tool is provided, including a guard shell being associated with a first surface of the abrasive accessory and secured to the power tool around an output spindle of the power tool; and a guard cover being associated with a second surface of the abrasive accessory opposite the first surface and attached to the guard shell at a pivot point having an axis that is at a distance from an axis of the spindle, the guard cover being rotatably movable with respect to the guard shell around the pivot point.

Guard assembly for a power tool

A tool operable to expand an end of a pipe, such as PEX pipe, has a jaw assembly with jaws movable between a closed position and an expanded position and rotatable about a longitudinal axis. A motor drives an output spindle driven by the motor, which in turn drives a radial cam. A wedge is movable by the radial cam in a reciprocating motion along the axis, causing the wedge to move between a first position where the jaws are in the closed position and a second position where the jaws are in the expanded position. A rotating ring is mounted on the wedge and connected to the jaws. The rotating ring is driven by the output spindle for rotating the jaws about the axis.

PEX expanding tool

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Suzhou, China

Qingyang Li