IP Library › Granted Patent US 10,405,642
Granted Patent B2
US 10,405,642 · App. 14/962,542 · Granted Sep 10, 2019

Toothbrush and process for producing the same

Inventors: Philipp Pfenniger (Triengen, CH); Franz Fischer (Triengen, CH)
Assignee: TRISA HOLDING AG
A46B9/04A46B3/06A46B5/0029A46B9/026A46B15/0032A46B17/08A46D3/045A46B3/20A46B7/06A46B15/0002A46B2200/1066
View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 10,405,642
App. No.
14/962,542
Granted
Sep 10, 2019
Kind
B2
Abstract

The invention relates to a toothbrush that is produced by AFT and has a head part and at least one carrier element connected thereto. A front surface of the head part is formed by the top surfaces of the at least one carrier element and has a non-planar three-dimensional configuration, or is capable of assuming such a configuration during intended use. The invention also relates to a process for producing such a toothbrush.

Claims (81)

1. A toothbrush, comprising:

a handle part;

a head part connected to the handle part, the head part having a front face and a rear face; and

at least one carrier element non-releasably connected to the head part, the at least one carrier element having a top surface, a rear surface and clusters of bristle filaments having a rear end melted to form a bristle melt, wherein:

the at least one carrier element contains an additive which is not used in the head part and the handle part;

the head part contains an elastic material integrally molded with the head part; and

the elastic material is at least partially arranged beneath the at least one carrier element.

2. The toothbrush according to claim 1 , wherein

the at least one carrier element comprises a different color than the head part.

3. The toothbrush according to claim 1 , wherein

the at least one carrier element comprises additives such as flavorings, temperature indicators or antibacterial substances.

4. The toothbrush according to claim 1 , wherein

the bristle melt forms separate webs.

5. The toothbrush according to claim 1 , wherein

the head part contains a plurality of cutouts running between the top surface and the rear surface of the at least one carrier element, and

the clusters of bristle filaments are guided through the cutouts.

6. The toothbrush according to claim 5 , wherein

the cutouts are located at least partially in an elastic material of the at least one carrier element.

7. The toothbrush according to claim 5 , wherein

the cutouts are located at least partially in a hard plastic material of the at least one carrier element.

8. The toothbrush according to claim 1 , wherein

the at least one carrier element is a two-component carrier element.

9. The toothbrush according to claim 1 , wherein

the bristle melt at least partially covers the rear surface of the at least one carrier element.

10. The toothbrush according to claim 1 , wherein

the at least one carrier element is made of a hard plastic material.

11. The toothbrush according to claim 1 , wherein

the at least one carrier element is made of a same hard plastic material as the head part.

12. The toothbrush according to claim 1 , wherein

the at least one carrier element is made of a hard plastic material and a soft plastic material.

13. The toothbrush according to claim 12 , wherein

the hard plastic material is at least one of PET, acrylonitrile-butadiene-styrene, styrene-acrylonitrile, and polypropylene; and

the soft plastic material is a thermoplastic elastomer.

14. The toothbrush according to claim 1 , wherein

the at least one carrier element is connected to the head part only in sub-regions.

15. The toothbrush according to claim 1 , wherein

in a contact region of the at least one carrier element and the head part, edges or grooves are formed.

16. The toothbrush according to claim 1 , wherein

the at least one carrier element is at least partially spaced apart from the head part.

17. The toothbrush according to claim 1 , wherein

the at least one carrier element includes non-bristle containing cleaning elements made of a soft material.

18. The toothbrush according to claim 1 , wherein

the elastic material and the at least one carrier element contact one another in a front end region of the head part.

19. The toothbrush according to claim 1 , wherein

in a central portion of the head part an elevated region is provided which includes multiple non-bristle containing flexible cleaning elements.

20. The toothbrush according to claim 1 , wherein

the clusters of bristle filaments produce profiles which (i) differ in a longitudinal direction and a transverse direction in relation to the head part and (ii) have different levels of rigidity.

21. The toothbrush according to claim 1 , wherein

the at least one carrier element consists of a soft-elastic material, and slightly protrudes from the head part in a vertical direction.

22. The toothbrush according to claim 1 , wherein

the at least one carrier element comprises two portions which are separated from one another by a central portion of the head part carrying at least one of (i) the clusters of bristle filaments and (ii) flexible non-bristle containing cleaning elements.

23. A toothbrush, comprising:

a handle part;

a head part connected to the handle part, the head part having a front face and a rear face; and

at least one carrier element non-releasably connected to the head part, the at least one carrier element having a top surface, a rear surface and clusters of bristle filaments having a rear end melted to form a bristle melt, wherein:

the at least one carrier element comprises a different color than the head part;

the head part contains an elastic material integrally molded with the head part; and

the elastic material is at least partially arranged beneath the at least one carrier element.

24. The toothbrush according to claim 23 , wherein

the at least one carrier element comprises additives such as flavorings, temperature indicators or antibacterial substances.

25. The toothbrush according to claim 23 , wherein

the at least one carrier element contains an additive which is not used in the head part and the handle part.

26. The toothbrush according to claim 23 , wherein

the at least one carrier element is made of a same hard plastic material as the head part.

27. The toothbrush according to claim 23 , wherein

the at least one carrier element is connected to the head part only in sub-regions.

28. The toothbrush according to claim 23 , wherein

the at least one carrier element is at least partially spaced apart from the head part.

29. The toothbrush according to claim 23 , wherein

in a central portion of the head part an elevated region is provided which includes multiple non-bristle-containing flexible cleaning elements.

30. The toothbrush according to claim 23 , wherein

the at least one carrier element consists of a soft-elastic material, and slightly protrudes from the head part in a vertical direction.

31. The toothbrush according to claim 23 , wherein

the at least one carrier element comprises two portions which are separated from one another by a central portion of the head part carrying at least one of (i) the clusters of bristle filaments and (ii) flexible non-bristle containing cleaning elements.

32. A toothbrush, comprising:

a handle part;

a head part to the handle part, the head part having a front face and a rear face; and

at least one carrier element non-releasably connected to the head part, the at least one carrier element having a top surface, a rear surface and clusters of bristle filaments having a rear end melted to form a bristle melt, wherein

the at least one carrier element comprises two portions which are separated from one another by a central portion of the head part carrying the clusters of bristle filaments and/or flexible non-bristle containing cleaning elements.

33. The toothbrush according to claim 32 , wherein

the at least one carrier element consists of a soft-elastic material, and slightly protrudes from the head part in a vertical direction.

Priority Claims (1)
DE 102 59 723 · Dec 19, 2002 · national
Continuity (9)
Continuation 14083896 · Nov 19, 2013
Continuation 13765151 · Feb 12, 2013
Continuation 13067844 · Jun 29, 2011
Continuation 12805064 · Jul 9, 2010
Continuation 12379992 · Mar 5, 2009
Continuation 11645664 · Dec 27, 2006
Continuation 11291911 · Dec 2, 2005
Division 10338744 · Mar 17, 2003
Related Publication 20160088925A1 · Mar 31, 2016