Brush section for an electric toothbrush
First Claim
1. A brush section for an electric toothbrush with a handle section having an electric motor, wherein the brush section comprises a first end adapted to be connected with the handle section, a second end remote from the handle section, and an essentially circular cylindrical rotary bristle supporting structure on the second end, the bristle supporting structure including an end surface on which bristles are arranged in the form of tufts, wherein the bristle supporting structure has an axis of rotation at an approximately right angle to a longitudinal center line of the brush section and is adapted to be driven by a coupling to the electric motor in an alternating rotary motion, wherein a first group of the tufts of bristles are serially located in position on a diameter, and a second group of the tufts are arranged on an outer circular ring of the bristle supporting structure, wherein the first group of tufts of bristles serially located on the diameter includes four tufts located inside the outer circular ring.
2 Assignments
0 Petitions
Accused Products
Abstract
The invention is directed to a brush section for an electric toothbrush with a handle section comprising an electric motor, wherein the brush section is adapted to be connected with the handle section and has at its end remote from the handle section an essentially circular cylindrical rotary bristle supporting structure (38) on which bristles (48, 50) are arranged in the form of tufts (60, 62) of different lengths, and wherein the bristle supporting structure (38) has its axis of rotation at approximately right angles to a longitudinal center line of the brush section and is adapted to be driven in an alternating rotary motion over an arc of ±20° to ±100°. Some of the tufts (60) of bristles are serially located in position on a diameter and on an outer circular ring of the bristle supporting structure (38).
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Citations
26 Claims
- 1. A brush section for an electric toothbrush with a handle section having an electric motor, wherein the brush section comprises a first end adapted to be connected with the handle section, a second end remote from the handle section, and an essentially circular cylindrical rotary bristle supporting structure on the second end, the bristle supporting structure including an end surface on which bristles are arranged in the form of tufts, wherein the bristle supporting structure has an axis of rotation at an approximately right angle to a longitudinal center line of the brush section and is adapted to be driven by a coupling to the electric motor in an alternating rotary motion, wherein a first group of the tufts of bristles are serially located in position on a diameter, and a second group of the tufts are arranged on an outer circular ring of the bristle supporting structure, wherein the first group of tufts of bristles serially located on the diameter includes four tufts located inside the outer circular ring.
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20. An electric toothbrush, comprising:
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a handle section, including an electric motor; a brush section having a longitudinal center line, and including a first end adapted to be connected with the handle section and a second end remote from the handle section; the second end of the brush section including an essentially circular cylindrical rotary bristle supporting structure on an end surface of which bristles are arranged in the form of tufts, wherein the bristle supporting structure has an axis of rotation at an approximately right angle to the longitudinal center line and is adapted to be driven in an alternating rotary motion by a coupling to the electric motor when the brush section is connected to the handle section, wherein approximately six tufts of bristles are serially located in position on a diameter of the bristle supporting structure, tufts of bristles are arranged on an outer circular ring of the bristle supporting structure, and approximately six tufts of bristles are located in an inner circular area between the tufts on the diameter and the tufts on the outer circular ring.
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21. A brush section for an electric toothbrush with a handle section including an electric motor, wherein the brush section comprises:
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a first end adapted to be connected with the handle section; a second end remote from the handle section, the second end including an essentially circular cylindrical rotary bristle supporting structure on an end surface of which bristles are arranged in the form of tufts, and wherein the bristle supporting structure has an axis of rotation at an approximately right angle to a longitudinal center line of the brush section and is adapted to be driven by a coupling to the electric motor in an alternating rotary motion; wherein a first group of the tufts are serially located on a diameter of the bristle supporting structure; wherein a second group of the tufts are arranged on an outer circular ring of the bristle supporting structure; and wherein a third group of tufts are positioned within the outer circular ring between the first group of tufts and the second group of tufts, the bristles of the third group of tufts having a smaller diameter than the diameter of at least one of the bristles of the first group of tufts and the bristles of the second group of tufts. - View Dependent Claims (22)
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23. A brush section comprising:
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a first end adapted to be connected to a handle section of an electric toothbrush that includes a motor, and an essentially circular cylindrical rotary bristle supporting structure disposed on an end portion of the brush section remote from the first end adapted to be connected to the handle section, having an axis of rotation at an approximately right angle to a longitudinal axis of the handle section and adapted to be driven in an alternating rotary motion by a coupling to the motor when the brush section is connected to the handle section, the bristle supporting structure including a surface on which bristles are arranged in the form of tufts serially located along a diameter of the bristle supporting structure, tufts located on an outer circular ring of the bristle supporting structure, and tufts arranged on an inner circular ring of the bristle supporting structure between the tufts along the diameter and the tufts arranged on the outer circular ring, wherein the bristles of the tufts, located respectively on the diameter and outer circular ring of the bristle supporting structure, are longer than and have a larger diameter than bristles of the tufts arranged on the inner circular ring. - View Dependent Claims (24, 25)
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26. A brush section comprising:
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a first end adapted to be connected to a handle section of an electric toothbrush that includes a motor, and an essentially circular cylindrical rotary bristle supporting structure disposed on an end portion of the brush section remote from the first end adapted to be connected to the handle section, having an axis of rotation at an approximately right angle to a longitudinal axis of the handle section and adapted to be driven in an alternating rotary motion by a coupling to the motor when the brush section is connected to the handle section, the bristle supporting structure including a surface on which bristles are arranged in the form of tufts serially located along a diameter of the bristle supporting structure, tufts located on an outer circular ring of the bristle supporting structure, and tufts arranged on an inner circular ring of the bristle supporting structure between the tufts along the diameter and the tufts arranged on the outer circular ring, wherein the bristles of the tufts, located respectively on the diameter and outer circular ring of the bristle supporting structure, are longer than bristles of the tufts arranged on the inner circular ring, wherein the outer circular ring is equipped with approximately 12 tufts, the diameter of the bristle supporting structure with approximately six tufts and the inner circular ring with approximately six tufts.
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Specification