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US 9,539,750 B2Granted
Toothbrush with partially coated surface
AssigneeTrisa Holding AG
InventorsPeter Gross, Christian Hilfiker
Life of this patent
Estimating the term…
Abstract
The toothbrush has a handle, a neck and a head. In the handle there is a first hard component which has a metallic covering. At least in regions, the metallic covering has a covering of a second hard component.
Claims15
A toothbrush comprising:
- a handle part, a cross section of the handle part containing plastic material sections of a first hard component, a second hard component, and a soft component;
- a neck part adjoining the handle part;
- and
- a head part carried by the neck part, wherein:
- the plastic material section of the first hard component in the handle part is a proportion of at least 10% of the cross section of the handle part, the plastic material section of the first hard component is provided with a metallic coating in at least certain regions of the plastic material section of the first hard component, the metallic coating being at least partially covered by the plastic material section of the second hard component by injection molding;
- the plastic material section of the second hard component and the plastic material section of the first hard component are connected to each other in a mechanical manner, without forming a material bond;
- and
- the plastic material section of the soft component is only in contact with the plastic material section of the second hard component.
5 more elements
A toothbrush comprising:
- a handle part, a cross section of the handle part containing plastic material sections of a first hard component, a second hard component, and a soft component;
- a neck part adjoining the handle part;
- and
- a head part carried by the neck part, wherein:
- the plastic material section of the first hard component is provided with a metallic coating in at least certain regions of the plastic material section of the first hard component, a side of the metallic coating is in contact with the first hard component;
- an opposing side of the metallic coating is completely surrounded by the plastic material section of the second hard component by injection molding;
- and
- the plastic material section of the soft component contacts the second hard component.
5 more elements
A toothbrush comprising:
- a handle part, a cross section of the handle part containing plastic material sections of a first hard component, a second hard component, and a soft component;
- a neck part adjoining the handle part;
- and
- a head part carried by the neck part, wherein:
- the plastic material section of the first hard component is provided with a metallic coating in at least certain regions of the plastic material section of the first hard component;
- and
- the plastic material section of the first hard component, the plastic material section of the second hard component, the plastic material section of the soft component, and the metallic coating are each a portion of an outer surface of the handle part.
4 more elements
Dependencies are inferred from the claim text.