Brushing – scrubbing – and general cleaning – Implements – Brush or broom
Reexamination Certificate
2008-07-22
2008-07-22
Redding, David A (Department: 3723)
Brushing, scrubbing, and general cleaning
Implements
Brush or broom
C015S184000, C015S022100, C015S024000, C015S029000
Reexamination Certificate
active
07401377
ABSTRACT:
A battery-operated toothbrush includes a drive unit, a housing defining an accommodation chamber configured to receive the drive unit, and a thermoplastic elastomer seal disposed on an outer surface of the housing. The housing includes a front end configured to receive a toothbrush head, an open end, opposite the front end, that provides access to the accommodation chamber, and a pass-through aperture, which extends from an outer surface of the housing to the accommodation chamber. The drive unit includes an engagement element configured to engage the pass-through aperture to retain the drive unit in the accommodation chamber. The thermoplastic elastomer seal extends into the pass-through aperture. A potion of the thermoplastic elastomer seal is elastically displaced by the engagement element when the engagement element engages the aperture.
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Birk Andreas
Wasow Soren
Braun GmbH
Fish & Richardson P.C.
Redding David A
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