US 12,454,069 B2
Electric shaver with mutually different hair-cutting units
Babu Varghese, Eindhoven (NL); Yannyk Parulian Julian Bourquin, Eindhoven (NL); Jonathan Alambra Palero, Waalre (NL); Lu Wang, Eindhoven (NL); Oedilius Johannes Bisschop, Drachten (NL); and Willem Auke Westerhof, Drachten (NL)
Assigned to KONINKLIJKE PHILIPS N.V., Eindhoven (NL)
Appl. No. 18/283,835
Filed by KONINKLIJKE PHILIPS N.V., Eindhoven (NL)
PCT Filed Mar. 17, 2022, PCT No. PCT/EP2022/056898
§ 371(c)(1), (2) Date Sep. 25, 2023,
PCT Pub. No. WO2022/207330, PCT Pub. Date Oct. 6, 2022.
Claims priority of application No. 21165782 (EP), filed on Mar. 30, 2021.
Prior Publication US 2024/0173879 A1, May 30, 2024
Int. Cl. B26B 19/14 (2006.01)
CPC B26B 19/146 (2013.01) [B26B 19/143 (2013.01); B26B 19/145 (2013.01)] 7 Claims
OG exemplary drawing
 
1. Electric shaver comprising a main body and a shaving unit coupled to the main body, wherein:
the shaving unit comprises at least three hair-cutting units and a supporting member supporting the at least three hair-cutting units;
each hair-cutting unit comprises an external cutting member with a skin-contact surface provided with hair-entry openings, and an internal cutting member which is rotatable relative to the external cutting member;
the hair-cutting units each have at least one geometric parameter (w) relating to a corresponding geometric property of the hair-cutting units, wherein a hair-cutting process of each individual hair-cutting unit is influenced by a value of said at least one geometric parameter of said individual hair-cutting unit;
the supporting member has a central axis which extends transversely relative to the skin-contact surfaces of the external cutting members; and
the shaving unit is configured to be positionable in at least two different angular positions about the central axis relative to the main body and coupled to the main body; characterized in that the value of said at least one geometric parameter of at least one of the hair-cutting units is different from the values of said at least one geometric parameter of the other hair-cutting units.