Abrading – Flexible-member tool – per se – Interrupted or composite work face
Reexamination Certificate
2007-07-17
2007-07-17
Ackun, Jr., Jacob K. (Department: 3723)
Abrading
Flexible-member tool, per se
Interrupted or composite work face
C451S533000, C051S297000
Reexamination Certificate
active
11229281
ABSTRACT:
An abrasive article with an integral dust collection system. The abrasive article comprises a porous abrasive layer with openings, a first filter media with channels, a second filter media, and an attachment interface layer. The openings of the porous abrasive layer cooperate with the channels to allow the flow of particles from the abrasive surface to the second filter media.
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Angadjivand Seyed A.
Bange Donna W.
Braunschweig Ehrich J.
Kalatoor Suresh
Rambosek Thomas W.
3M Innovative Properties Co.
Ackun Jr. Jacob K.
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