1. A device for dispensing a dental material, comprising a piston for extruding the material, the device having a threaded spindle and a cooperating threaded nut that are rotatable relative to each other about a rotation axis, wherein a rotation of the nut and the spindle relative to each other causes the spindle and the nut to displace axially relative to each other along the rotation axis and to move the piston, and wherein the device is adapted for rotationally driving the spindle and the nut individually.
2. The device of claim 1, wherein the device is adapted to drive the spindle and the nut for rotating in the same direction andor in opposite directions.
3. The device of claim 1, being adapted to drive the spindle and the nut at different rotations speeds.
4. The device of claim 1, being adapted to temporarily stop one or both of the spindle and the nut from rotating.
5. The device of claim 1, having a spindle drive member for rotationally driving the spindle, wherein the spindle drive member and the spindle are adapted such that the spindle drive member and the spindle are locked against rotation relative to each other but axially movable relative to one another.
6. The device of claim 5, wherein the spindle has a spline which extends in a direction generally axially to the rotation axis, and a key movable within the spline and locking the spindle drive member and the spindle against rotation relative to one another.
7. The device of claim 5, in which the nut and the spindle drive member are axially coupled such that an axial movement of the nut and the spindle relative to one another causes the same axial movement of the spindle drive member and the spindle relative to one another.
8. The device of claim 5, having a first motor cooperating with the spindle drive member via a first transmission to rotationally drive the spindle.
9. The device of claim 8, adapted such that the first motor cooperates with the nut via a second transmission to rotationally drive the nut.
10. The device of claim 8, having a second motor cooperating with the nut via a second transmission to rotationally drive the nut.
11. The device of claim 8, wherein the first and second transmissions have different transmission ratios.
12. The device of claim 9, in which the first and second transmissions comprise a gear transmission.
13. The device of claim 12, at least one of the first and second transmissions forms a component of a planetary gear drive.
14. A device for dispensing a dental material, comprising:
a piston for extruding the material, the device having a threaded spindle and a cooperating threaded nut that are rotatable relative to each other about a rotation axis, wherein a rotation of the nut and the spindle relative to each other causes the spindle and the nut to displace axially relative to each other along the rotation axis and to move the piston, and wherein the device is adapted for rotationally driving the spindle and the nut individually,
a receptacle for receiving the material in the form of two material components;
a mixer shaft for receiving and driving a mixer for mixing the components; and
at least two pistons for advancing the components toward at least one outlet to which the mixer is connectable.
15. The device of claim 14, being adapted for driving the mixer shaft wherein a transmission is provided between the mixer shaft and at least one of the spindle and the nut.
16. The device of claim 14, wherein the device is adapted to drive the spindle and the nut for rotating in the same direction andor in opposite directions.
17. The device of claim 14, having a spindle drive member for rotationally driving the spindle, wherein the spindle drive member and the spindle are adapted such that the spindle drive member and the spindle are locked against rotation relative to each other but axially movable relative to one another.
18. The device of claim 14, in which the nut and the spindle drive member are axially coupled such that an axial movement of the nut and the spindle relative to one another causes the same axial movement of the spindle drive member and the spindle relative to one another.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. An apparatus for monitoring a communication device that is communicatively coupled to a first network, the apparatus being connected to a second network, comprising:
a receiver configured to receive, using a first protocol, device information of the communication device, the device information including (1) status information received from sensors of the communication device, and (2) a device identification of the communication device;
a memory configured to store the received device information;
a processor configured to identify, of the received device information, desired device information to be transmitted, wherein the processor is further configured to identify a destination of the desired device information, the destination being connected to the first network; and
a transmitter configured to transmit the desired device information to the identified destination connected to the first network using e-mail.
2. The apparatus of claim 1, further comprising:
a determining unit configured to determine whether the transmitter should transmit the desired device information or not, based on the device information of the communication device that is received by the receiver.
3. An method for monitoring a communication device that is communicatively coupled to a first network, the apparatus being connected to a second network, comprising:
receiving, using a first protocol, device information of the communication device, the device information including (1) status information received from sensors of the communication device, and (2) a device identification of the communication device;
storing the received device information;
identifying a destination of the desired device information, the destination being connected to the first network;
identifying, of the received device information, desired device information to be transmitted; and
transmitting the desired device information to the identified destination connected to the first network using e-mail.
4. The method of claim 3, further comprising:
determining whether to transmit the desired device information or not, based on the received device information of the communication device.
5. An apparatus for monitoring a communication device that is communicatively coupled to a first network, the apparatus being connected to a second network, comprising:
a receiver configured to receive, using a first protocol, device information of the communication device, the device information including (1) status information received from sensors of the communication device, and (2) a device identification of the communication device;
a memory configured to store the received device information;
a processor configured to determine which destination, of a plurality of destinations, the received device information should be sent, the destination being connected to the first network; and
a transmitter configured to transmit the received device information to the determined destination connected to the first network.
6. The apparatus of claim 1, wherein
the processor is configured to identify the destination of the desired device information from among a plurality of destinations.