Lawrence L Grove

US Patent:

20210387302, Dec 16, 2021

Filed:

Oct 22, 2019

Appl. No.:

17/287513

Inventors:

Lawrence W. Grove - Erie PA, US

International Classification:

B24B 9/00
B24D 7/02
B24B 23/02

Abstract:

An attachment for a drill comprises a shank with a chuck configured to mount the attachment to the drill. A housing on the shank comprises a threaded end and a hollow chamber. A compression bladder having a tubular opening through it is configured to be inserted into the hollow chamber. A tube comprising a sanding or cleaning surface located on the inner surface of the tube is configured to be insertable into the tubular opening of the compression bladder. A threaded lid having a circular opening that is at least the same diameter as the inner diameter of the tube is configured to mount onto the housing at the threaded end and compress the compression bladder thereby reducing the diameter of the tubular opening and compressing the compression bladder against the tube to secure the tube within the housing.