US 12,440,321 B2
Attachment for an oral care device handle
Norbert Schaefer, Frankfurt Am Main (DE)
Assigned to Braun GmbH, Kronberg (DE)
Filed by Braun GmbH, Kronberg (DE)
Filed on Apr. 10, 2025, as Appl. No. 19/175,653.
Application 19/175,653 is a continuation of application No. 18/390,257, filed on Dec. 20, 2023, granted, now 12,036,079, issued on Jul. 16, 2024.
Application 18/390,257 is a continuation of application No. 18/103,553, filed on Jan. 31, 2023.
Claims priority of application No. 22154227 (EP), filed on Jan. 31, 2022.
Prior Publication US 2025/0235299 A1, Jul. 24, 2025
Int. Cl. A61C 17/22 (2006.01); A46B 5/00 (2006.01); A46B 13/02 (2006.01); F16D 1/02 (2006.01)
CPC A61C 17/222 (2013.01) [A46B 5/0095 (2013.01); A46B 13/02 (2013.01); F16D 1/02 (2013.01)] 30 Claims
OG exemplary drawing
 
1. An oral care device attachment for being coupled to an oral care device handle, the oral care device attachment comprising:
an outer attachment tube having a coupling end that is intended for being secured at the oral care device handle;
a carrier mounted for driven motion at the outer attachment tube;
an axle engaged to the carrier, wherein the driven motion of the carrier is an oscillatory rotation about a rotation axis defined by the axle;
a motion transmitter disposed inside of the outer attachment tube, the motion transmitter comprising a first end coupled with the carrier and a second end comprising a coupling unit that has a top plate and a first solid coupling surface configured to engage a flat second coupling surface at an end of a drive shaft of the oral care device handle with the oral care device attachment coupled to the oral care device handle, wherein the coupling unit does not receive any portion of the drive shaft therein; and
a spring engaging the top plate and biasing the motion transmitter towards the coupling end of the outer attachment tube.