US 10,376,349 B2
Brush head assembly
Steven Charles Deane, Cambridge (GB); and Steven Ernest Franklin, Eindhoven (NL)
Assigned to KONINKLIJKE PHILIPS N.V., Eindhoven (NL)
Appl. No. 15/573,319
Filed by KONINKLIJKE PHILIPS N.V., Eindhoven (NL)
PCT Filed May 11, 2016, PCT No. PCT/IB2016/052691
§ 371(c)(1), (2) Date Nov. 10, 2017,
PCT Pub. No. WO2016/181319, PCT Pub. Date Nov. 17, 2016.
Claims priority of provisional application 62/161,367, filed on May 14, 2015.
Prior Publication US 2018/0132989 A1, May 17, 2018
Int. Cl. A46B 3/04 (2006.01); A46B 3/20 (2006.01); A46B 7/06 (2006.01); A46B 9/10 (2006.01); A61C 17/34 (2006.01); A61C 17/22 (2006.01); A46B 9/04 (2006.01); A46D 3/00 (2006.01)
CPC A61C 17/222 (2013.01) [A46B 3/04 (2013.01); A46B 3/20 (2013.01); A46B 7/06 (2013.01); A46B 9/04 (2013.01); A46D 3/00 (2013.01); A61C 17/3409 (2013.01); A46B 9/10 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A brush head assembly comprising:
a sandwich assembly comprising a flexible matrix positioned between two layers of stiff or stiffer material,
a plurality of bristle tufts, each of which comprises a plurality of bristle strands, each bristle tuft having a proximal end and a free end,
a bristle tuft retention element for each bristle tuft, the bristle tuft retention elements connecting the proximal end of the bristle tufts to the sandwich assembly.