公开(公告)号：US10882153B2

公开(公告)日：2021-01-05

申请号：US16104989

申请日：2018-08-20

Applicant: Robert Arthur ,  Nathaniel P Wenzel ,  Nicholas J Russell

Inventor： Robert Arthur ,  Nathaniel P Wenzel ,  Nicholas J Russell

IPC: B23Q11/00 ,  B25D17/20

Abstract: A vacuum dust extraction apparatus for a percussive air tool contains and extracts workplace dust created by the impacting action of the air tool's implement. The apparatus includes a clamshell adapter constructed as two halves that are oppositely disposed about the air tool's retainer, and joined to enclose the retainer, and a tubular dust bellows fastened to the outboard end of the joined clamshell halves. The clamshell adaptor includes an integral exhaust port, and an industrial vacuum coupled to the exhaust port via a flexible suction/vacuum hose creates suction in the bellows for extracting airborne dust created by percussive action of the implement on a workpiece. Suction loss through the clamshell adaptor is minimized by a sealing element that bridges a gap between the interior periphery of the clamshell adaptor and the exterior periphery of the air tool's retainer.

公开(公告)号：US10850358B2

公开(公告)日：2020-12-01

申请号：US16205821

申请日：2018-11-30

Applicant: Robert Arthur ,  Nathaniel P Wenzel ,  Nicholas J Russell ,  Michael J Flaherty

Inventor： Robert Arthur ,  Nathaniel P Wenzel ,  Nicholas J Russell ,  Michael J Flaherty

IPC: B23Q11/00 ,  B25B33/00 ,  B25F5/00

Abstract: A spindle locking apparatus for power tools having a spindle mounted for rotation within a tubular housing. The locking apparatus includes a locking sleeve disposed between the spindle and its tubular housing, a locking collar surrounding the tubular housing radially outboard of the locking sleeve, and a set of drive pins mechanically coupling the locking collar to the locking sleeve through axial slots in the tubular collar. The inner periphery of the locking sleeve is shaped to lockingly engage a flat-sided portion of the spindle, and a spring element biases the locking sleeve away from the flat-sided portion of the spindle to unlock the spindle. The locking collar is axially shiftable against the spring bias as permitted by the slots in the tubular housing to bring the locking sleeve into locking engagement with the flat-sided portion of the spindle to prevent spindle rotation.