Process for making a toothbrush
AssigneeSmithKline Beecham Consumer Healthcare GmbH
InventorHans Kramer
Life of this patent
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Abstract
This invention relates to a process for making a toothbrush comprising making a toothbrush head having at its basal end a first engagement part, then making a toothbrush grip handle from a plastics material by a handle molding process, during the handle molding process forming a second engagement part at the head end of the handle in engagement with the first engagement part, such that the engagement between the first and second engagement parts retains the head and grip handle together, and toothbrushes made by this process.
Claims23
A process for making a toothbrush which comprises a head and a handle disposed along a longitudinal head-handle axis, the process comprising the steps of:
- (a) making a toothbrush head from a plastics material by a head moulding process, the head having a basal end which in the assembled toothbrush is adjacent to the handle, the head having a first engagement part at its basal end;
- (b) then making a toothbrush grip handle from a plastics material by a handle moulding process the handle having a head end which in the assembled toothbrush is adjacent to the head, during the said handle moulding process forming a second engagement part at the head end of the handle in engagement with the first engagement part, such that the engagement between the first and second engagement parts retains the head and grip handle together.
A process for making a toothbrush which comprises a head and a handle disposed along a longitudinal head-handle axis, the process comprising the steps of:
- (a) making a toothbrush grip handle from a plastics material by a handle moulding process, the grip handle having a head end which in the assembled toothbrush is adjacent to the head, the grip handle having a first engagement part at its head end;
- (b) then making a toothbrush head from a plastics material by a head moulding process, the head having a basal end which in the assembled toothbrush is adjacent to the handle, during the said head moulding process forming a second engagement part at the basal end of the head in engagement with the first engagement part, such that the engagement between the first and second engagement parts retains the head grip handle together;
- (c) then in a subsequent step forming a mass of an elastomeric material around and at least partly enclosing the first and second engagement parts.
A process for making a toothbrush which comprises a head and a handle disposed along a longitudinal head-handle axis, the process comprising the steps of:
- (a) in a head moulding process making a toothbrush head which has a basal end which in the assembled toothbrush is adjacent to the handle, the head having a fist engagement part at its basal end;
- (b) in a handle moulding process making a toothbrush grip handle which has a head end which in the assembled toothbrush is adjacent to the head, the grip handle having a second engagement part at its head end, positioning the first and second engagement parts adjacent to each other;
- (c) then in a subsequent injection moulding process forming a mass of plastics material in engagement with the first and second engagement parts such that the engagement between the first and second engagement parts and the mass retain the head and grip handle together.
Dependencies are inferred from the claim text.