Solid material comminution or disintegration – Apparatus – Cooperating comminuting surfaces
Reexamination Certificate
2007-06-25
2008-11-04
Miller, Bena (Department: 3725)
Solid material comminution or disintegration
Apparatus
Cooperating comminuting surfaces
C241S034000, C241S285100
Reexamination Certificate
active
07445173
ABSTRACT:
A device for reducing vibrations and noises of a paper shredder uses a buffer device comprised of a rubber cylinder and a spring between core fixing frames and the housing base of the paper shredder. The buffer device is fixed by using screw and washer, enhancing the vibration and noise reduction effect for the paper shredder.
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patent: 190389 (1877-05-01), Trumbull
patent: 315583 (1885-04-01), Wild
patent: 705323 (1902-07-01), Creuzbaur
patent: 4817877 (1989-04-01), Itoh et al.
patent: 5893524 (1999-04-01), Schwelling
patent: 10681 (1980-05-01), None
Bacon & Thomas PLLC
Michilin Prosperity Co., Ltd.
Miller Bena
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