The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 13, 2014
Filed:
Dec. 23, 2008
Edward J. Woo, Woodbury, MN (US);
Seyed A. Angadjivand, Woodbury, MN (US);
Wenli Wang, Woodbury, MN (US);
John F. Reed, North Oaks, MN (US);
Edward J. Woo, Woodbury, MN (US);
Seyed A. Angadjivand, Woodbury, MN (US);
Wenli Wang, Woodbury, MN (US);
John F. Reed, North Oaks, MN (US);
3M Innovative Properties Company, St. Paul, MN (US);
Abstract
A dust collection device for a sanding tool includes a bag having a sidewall with an inner surface and a coupler attached to the bag. The sidewall comprises at least one filter layer and an outer support layer. A sleeve having an outer surface, a sleeve sidewall, a first end, a second end, and at least one gap at either the first end or the second end is positioned within the bag. The sleeve's first end is positioned adjacent the coupler to direct incoming air towards the sleeve and the sleeve is positioned within the bag such that a bypass volume is present between the outer surface and the inner surface.