Personal care device
AssigneeBraun GmbH
InventorsNorbert Schaefer, Uwe Schober, Joern Utsch, Andreas Kramp, Frank Ziegler, Benedikt Heil, Marlis Hübner
Life of this patent
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Abstract
A personal care device having a handle having an engagement portion and a persona care attachment are described. The personal care attachment has a housing attached to the engagement portion and a contact element carrier. The contact element carrier is movably coupled to the housing. A plurality of contact elements is arranged on the contact element carrier, and wherein the personal care attachment is driven at a frequency of between about 150 Hz to about 175 Hz and has a sound intensity level of less than about 75 dB(A).
Claims7
A personal care device comprising:
- a handle having an engagement portion;
- a direct drive system disposed within the handle including a drive shaft reciprocating in a direction generally parallel to a longitudinal axis of the handle;
- a personal care attachment comprising a housing attached to the engagement portion, contact element carrier and a drive member having a proximal end and a distal end, the proximal end having an attachment element, the contact element carrier being movably coupled to the housing and the drive member reciprocating in a direction generally parallel to a longitudinal axis of the personal care attachment;
- and
- a plurality of contact elements being arranged on the contact element carrier, wherein the personal care attachment is driven at a frequency of between about 150 Hz to about 175 Hz and has a sound intensity level of less than about 75 dB (A);
- wherein the attachment element includes a permanent magnet or a magetizable element;
- and wherein the personal care attachment has a resonance frequency which is at least 125 percent of the driving frequency of the personal care attachment.
Dependencies are inferred from the claim text.