Tartar-removing handpiece
First Claim
1. In a tartar-removing handpiece, including an elongated gripping sleeve, a tartar-removing implement having a bent operating end being arranged at one end of said gripping sleeve, said gripping sleeve having a light source at the end facing said implement, said light source being directed towards the region of the tartar-removing implement and being located at one side adjacent the tartar-removing implement;
- the improvement comprising;
said tartar-removing implement is inserted into the gripping sleeve; and
latching means for fixing the rotational position of the implement for aligning a light beam emanating from the light source with the bent operating end of the tartar-removing implement, said latching means comprising at least one engaging means on the implement and cooperative engaging means on the handpiece, wherein the engaging means and cooperative engaging means are engagable with each other in the rotational position of the implement effecting the alignment of the light beam and the bent operating end, one said engaging means being formed by an axially projecting protuberance and the cooperative engaging means comprising a recess for receiving the protuberance.
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Accused Products
Abstract
A tartar-removing or scaling handpiece, which is constituted of an elongated gripping sleeve, having arranged at one end thereof a tartar-removing or scaling implement which includes a bent operating end, wherein the gripping sleeve incorporates a light source arranged at the end thereof proximate the implement which is oriented towards the region of the tartar-removing implement, and which is located at one side adjacent the tartar-removing implement. The tartar-removing implement possesses a shaft connected with the gripping sleeve, to which there is joined the angled or curvilinearly bent operating end of the implement.
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Citations
15 Claims
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1. In a tartar-removing handpiece, including an elongated gripping sleeve, a tartar-removing implement having a bent operating end being arranged at one end of said gripping sleeve, said gripping sleeve having a light source at the end facing said implement, said light source being directed towards the region of the tartar-removing implement and being located at one side adjacent the tartar-removing implement;
- the improvement comprising;
said tartar-removing implement is inserted into the gripping sleeve; and
latching means for fixing the rotational position of the implement for aligning a light beam emanating from the light source with the bent operating end of the tartar-removing implement, said latching means comprising at least one engaging means on the implement and cooperative engaging means on the handpiece, wherein the engaging means and cooperative engaging means are engagable with each other in the rotational position of the implement effecting the alignment of the light beam and the bent operating end, one said engaging means being formed by an axially projecting protuberance and the cooperative engaging means comprising a recess for receiving the protuberance. - View Dependent Claims (2)
- the improvement comprising;
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3. In a tartar-removing handpiece, including an elongated gripping sleeve;
- a tartar-removing implement having a bent operating end being arranged at one end of said gripping sleeve, said gripping sleeve having a light source at the end facing said implement, said light source being directed towards the region of the tartar-removing implement and being located at one side adjacent the tartar-removing implement;
the improvement comprising;
said tartar-removing implement is inserted into the gripping sleeve; and
latching means for fixing the rotational position of the implement for aligning a light beam emanating from the light source with the bent operating end of the tartar-removing implement, said latching means comprising at least one engaging means on the implement and cooperative engaging means on the handpiece, wherein the engaging means and cooperative engaging means are engagable with each other in the rotational position of the implement effecting the alignment of the light beam and the bent operating end, one said engaging means comprising latching recesses distributed about a circle having the center point thereof in the axis of a shaft of the implement; and
the cooperating engaging means comprising at least one latching member engaging into one of the latching recesses responsive to the rotational positioning of the implement under the biasing action of a spring. - View Dependent Claims (4, 5, 6, 7, 8)
- a tartar-removing implement having a bent operating end being arranged at one end of said gripping sleeve, said gripping sleeve having a light source at the end facing said implement, said light source being directed towards the region of the tartar-removing implement and being located at one side adjacent the tartar-removing implement;
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9. In a tartar-removing handpiece, including an elongaged gripping sleeve;
- a tartar-removing implement having a bent operating end being arranged at one end of said gripping sleeve, said gripping sleeve having a light source at the end facing said implement, said light source being directed towards the region of the tartar-removing implement and being located at one side adjacent the tartar-removing implement;
the improvement comprising;
said tartar-removing implement is inserted into the gripping sleeve; and
latching means for fixing the rotational position of the implement for aligning a light beam emanating from the light source with the bent operating end of the tartar-removing implement, said latching means comprising at least one engaging means on the implement and cooperative engaging means on the handpiece, wherein the engaging means and cooperative engaging means are engagable with each other in the rotational position of the implement effecting the alignment of the light beam and the bent operating end, said implement being axially movable opposite the biasing force of a return spring from a pressure-applying position in which the implement has a pressure surface contacting against a complementary pressure surface on the gripping sleeve, into a non-pressuring position in which there is facilitated the rotation of the implement about the axis of the implement shaft, one said engaging means being the pressure surface and the cooperating engaging means being the complementary pressure surface. - View Dependent Claims (10, 11, 12, 13, 14, 15)
- a tartar-removing implement having a bent operating end being arranged at one end of said gripping sleeve, said gripping sleeve having a light source at the end facing said implement, said light source being directed towards the region of the tartar-removing implement and being located at one side adjacent the tartar-removing implement;
Specification