Author: claimsbot

1. A threaded drive comprising a threaded spindle having a longitudinal axis; a catch nut which is in a screw engagement with said threaded spindle with a first clearance and which is rotatable relative to said threaded spindle about said longitudinal axis; a catch nut which is in a screw engagement with said threaded spindle with a second predetermined clearance which is greater than the first predetermined clearance, said catch nut being freely rotatable relative to said supporting nut without an interlocking positive connection but with a non-positive frictional cooperation in a peripheral direction, and also being clampingly engageable with said supporting nut and fixable on said supporting nut in a desired relative rotary position.
2. A threaded drive as defined in claim 1; and further comprising a clamping unit which brings said catch nut in the clamping engagement with said supporting nut.
3. A threaded engagement as defined in claim 2, wherein said clamping unit is formed so that after establishing the clamping engagement between said supporting nut and said catch nut it remains on a unit formed by said supporting nut and said catch nut.
4. A threaded engagement as defined in claim 2; and further comprising means for fixedly connecting said clamping unit with said supporting nut.
5. A threaded engagement as defined in claim 4, wherein said fixedly connecting means include screw pens.
6. A threaded engagement as defined in claim 2, wherein said catch nut has an outer peripheral surface which is formed at least partially as a conical surface narrowing in a direction facing away from said supporting nut, said clamping unit having a counter conical surface with which said conical surface cooperates.
7. A threaded engagement as defined in claim 2, wherein said catch nut has an engaging surface provided at a side facing away from said supporting nut, said clamping unit having an associated counter engaging surface with which engaging surface cooperates.
8. A threaded engagement as defined in claim 7, wherein said engaging surface of said supporting nut extends substantially orthogonal to said longitudinal axis.
9. A threaded engagement as defined in claim 2, wherein said clamping unit is formed so that after establishing the clamping engagement of the supporting nut and the catch nut it is releasable from said catch nut.
10. A threaded engagement as defined in claim 9, wherein said catch nut has an outer peripheral surface which is formed at least partially as a conical surface and narrows in a direction facing said supporting nut, said supporting nut having a counter conical surface with which said conical surface is clampingly engageable.
11. A threaded engagement as defined in claim 9, wherein said clamping unit has an inner thread, and said threaded spindle has an outer thread, which are bringable in a screw engagement with one another with a predetermined clearance.
12. A threaded engagement as defined in claim 1, wherein said supporting nut is formed as a body of revolution nut.
13. A threaded engagement as defined in claim 1, wherein said supporting nut is formed as a screw nut with an inner thread fixedly formed on it.
14. A threaded engagement as defined in claim 1, wherein said catch nut is composed of a light metal.
15. A threaded engagement as defined in claim 1, wherein said catch nut is composed of aluminum.
16. A threaded engagement as defined in claim 1, wherein said catching nut is comprised of a light metal alloy.
17. A threaded engagement as defined in claim 1, wherein said catch nut is comprised of an aluminum alloy.

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. A disposable lid for a drinking cup comprising;
an annular mounting portion for scalingly engaging a brim of the drinking cup;
a substantially planar medial portion for covering an opening of the drinking cup;
a recess having at least two side walls, said side walls extending from said planar medial portion and converging toward one another forming an apex;
wherein said at least two side walls extend towards said apex at different angles with respect to a vertical plane of said recess including said apex;
wherein said at least two side walls converge together at a frangible portion formed in a deepest portion of the recess, and wherein a thickness of the lid material at the frangible portion is thinner than the lid material in other portions of the lid thereby allowing the frangible portion to be ruptured by a force exerted by an end of a straw as it is inserted into the frangible portion.
2. The lid as defined in claim 1, wherein one of the side walls of said recess slopes at an angle in the range of 30\xb0 to 60\xb0 with respect to said vertical plane and the other of said side walls of said recess slopes at an angle in the range of 0\xb0 to 10\xb0 with respect to said vertical plane.
3. The lid as defined in claim 1, wherein one of the side walls of said recess slopes at an angle in the range of 45\xb0 to 50\xb0 with respect to said vertical plane and the other of said side wall of said side walls of said recess slopes at an angle in the range of 2\xb0 to 5\xb0 with respect to said vertical plane.
4. The lid as defined in claim 1, wherein one of the side walls of said recess slopes at an angle of 47\xb0 with respect to said vertical plane and the other of said side walls of said recess slopes at an angle of 4\xb0 with respect to said vertical plane.
5. The lid as defined in claim 1, wherein said recess further includes end walls extending between said side walls, and said end walls of said recess slope toward one another in a direction from said medial portion of the lid to said apex.
6. The lid as defined in claim 5, wherein said end walls slope toward one another at an angle in the range of 0\xb0 to 10\xb0 with respect to a second vertical plane perpendicular to said vertical plane.
7. The lid as defined in claim 5, wherein said end walls slope toward one another at an angle in the range of 2\xb0 to 5\xb0 with respect to a second vertical plane perpendicular to said vertical plane.
8. The lid as defined in claim 5, wherein said end walls slope toward one another at an angle of 4\xb0 with respect to a second vertical plane perpendicular to said vertical plane.

1. Method of measuring dose distribution in a phantom for radiation therapy treatment verification, wherein at least two detector planes are arranged in said phantom in a non-parallel manner, each plane being provided with a plurality of diode detectors, wherein said phantom is irradiated using a patient specific treatment, comprising the steps of
obtaining information regarding the dose distribution inside said phantom by performing measurements using said detectors;
dividing the measurements in time-intervals, each time-interval having maximum length of approximately 100 msec; and
using said information in the treatment verification.
2. Method according to claim 1, wherein the information obtained by means of said measurements is used for IMRT verification.
3. Method according to claim 1, wherein said irradiation of the phantom comprises delivering dose pulses, further comprising the step of synchronizing the measurements with said delivered doses.
4. Method according to claim 1, further comprising the steps of:
synchronizing the measurements with a respiratory cycle of the patient for which the patent specific treatment is intended; and determining the dose delivered in the various phases of the respiratory cycle.
5. Method according to claim 1, further comprising the step of storing the data for each specific time-interval for measurements in said phantom.
6. Method according to claim 1, further comprising the step of calculating correction factors for each time-interval using said obtained information regarding the dose distribution inside said phantom.
7. Method according to claim 6, wherein the correction factors are calculated according to
Corn,f,seg-n,p,t(i),t(i+1)=Cdir*Cdepth*Cpos

where
Corrn, f, seg-n, p, t(i), t(i+1) The correction factor to be used with detector element n, in the sub field f in the phantom, correcting the measured dose integrated from time t(i) until t(i+1) to achieve the dose in the point of location of detector n
Cdir Factor correcting for any directional dependence in detector n
Cdepth Factor correcting for any depth (energy andor dose rate) in detector n
Cpos Factor correcting for any position (in primary beam, outside primary beam, edge of primary beam, etc.) dependency in detector n.
8. Method according to claim 6, wherein the correction factors are calculated according to
Corrn,f,seg-n,p,t(i),t(i+1)=Cdir+Cdepth+Cpos

where
Corn, f, seg-n, p, t(i), t(i+1) The correction factor to be used with detector element n, in the sub field f in the phantom, correcting the measured dose integrated from time t(i) until t(i+1) to achieve the dose in the point of location of detector n
Cdir Factor correcting for any directional dependence in detector n
Cdepth Factor correcting for any depth (energy andor dose rate) in detector n
Cpos Factor correcting for any position (in primary beam, outside primary beam, edge of primary beam, etc.) dependency in detector n.
9. Method according to claim 1, wherein the detector planes are arranged such that for each gantry angle projection, either of said non-parallel planes intersects with all parts of the radiation beam or sub-beams.
10. Method according to claim 1, wherein each detector plane is provided with detectors having a thickness in a range less than the range of the electrons of the maximum energy in the range where the dependency is significant.
11. Method of measuring dose distribution in a phantom for radiation therapy treatment verification, wherein detector planes are arranged in said phantom, each plane being provided with a plurality of diode detectors, wherein said phantom is irradiated using a patient specific treatment, comprising the steps of
obtaining information regarding the dose distribution inside said phantom by performing measurements using said detectors;
dividing the measurements in time-intervals, each time-interval having maximum length of approximately 100 msec;
synchronizing the measurements with a respiratory cycle of the patient for which the patent specific treatment is intended;
determining the dose delivered in the various phases of the respiratory cycle; and
using said information in the treatment verification.
12. Method according to claim 11, wherein at least two detector planes are arranged in said phantom in a non-parallel manner.
13. (canceled)
14. Use of a detector configuration arranged in a phantom suitable for radiation therapy in a method according to claim 1, said configuration comprising at least two detector planes provided with a plurality of diode detectors for measuring irradiation in said phantom, said irradiation being delivered using a patient specific treatment, wherein said planes being arranged in a non-parallel manner, wherein said detectors has a thickness in a range less than the range of the electrons of the maximum energy in the range where the dependency is significant.
15. Detector configuration according to claim 14, wherein said non-parallel planes are arranged such that, for each gantry angel projection, either of said planes intersects with all parts of the radiation beam or sub-beams.
16. Use of a diode detector arranged with a thickness in a range less than the range of the electrons of the maximum energy in the range where the dependency is significant in a method according to claim 1.
17. Diode detector according to claim 16, wherein said detector is used in water phantom dosimetry or in vivo dosimetry during Brachy therapy in Radio therapy.
18. Computer readable medium comprising instructions for bringing a computer to perform the steps of the method according to claim 1.

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. A method for providing content from a head-end to a digital device, comprising:
producing an Internet Protocol (IP) datagram including an IP header and a body that includes a plurality of packets in a Moving Picture Experts Group (MPEG) format, the plurality of packets including a first packet and a second packet preceding the first packet, the first packet including a first packet identifier to indicate a type of data stored in a payload of the first packet and the payload of the first packet is either video or audio encrypted using a first key, and a second packet including a secondary packet identifier to indicate that the second packet includes data that is (i) duplicative of the data contained in the payload of the first packet and (ii) encrypted differently than the data contained in the payload of the first packet, and to cause the digital device to discard the data contained in the first packet, the duplicative data being in a payload of the second packet and being either the video or the audio encrypted using a second key different than the first key; and
transmitting the IP datagram from the head-end.
2. The method of claim 1, wherein the first packet identifier is a unique value to indicate whether the payload of the first packet includes video, audio or data.
3. The method of claim 1, wherein the IP header comprises a version field to identify an IP version number, a length field to indicate either a length of the IP datagram or a length of the IP header, a source address field to include an IP address of the head-end and a destination address field to include an IP address of the digital device.
4. The method of claim 1, wherein a header of the first packet comprises the first packet identifier.
5. The method of claim 3, wherein prior to producing the IP datagram, the method further comprising:
determining whether the destination address field of the IP header is loaded with a multicast IP address,
if video is to be transmitted, each of the plurality of packets exclusively comprises a PID having a first value; and
if audio is to be transmitted, each of the plurality of packets exclusively comprises a PID having a second value differing from the first value.
6. A method for receiving content from a head-end by a digital device, comprising:
receiving an Internet Protocol (IP) datagram including an IP header and a body segmented including a plurality of packets in a Moving Picture Experts Group (MPEG) format, the plurality of packets comprises (i) a first packet of the plurality of packets including a payload having content being video or audio encrypted using a first key and a header that comprises a first packet identifier to indicate a type of the content contained in the payload of the first packet, and (ii) a second packet of the plurality of packets including a payload and a secondary packet identifier to indicate that the payload of the second packet includes content duplicative of the content contained in the payload of the first packet, the duplicative content in the payload of the second packet being the video or the audio encrypted using a second key different than the first key;
recovering the duplicative content contained in the payload of the second packet; and
disregarding the content contained in the payload of the first packet.
7. The method of claim 6, wherein the second packet precedes the first packet.
8. The method of claim 6, wherein content stored in the payload of the first packet is video encrypted using a first encryption algorithm and the duplicative content in the payload of the second packet is the video encrypted using a second encryption algorithm different than the first encryption algorithm.
9. The method of claim 6, wherein content stored in the payload of the first packet is audio encrypted using a first key and the duplicative content in the payload of the second packet is the audio encrypted using a second key different than the first key.
10. A software packet filter program embodied in a machine readable medium and executed by a processor, the software program comprising:
a first program block to extract a plurality of packets from an incoming Internet Protocol (IP) datagram, the plurality of packets comprises (i) a first packet of the plurality of packets including a payload having content being video or audio encrypted using a first key and a header that comprises a first packet identifier, and (ii) a second packet of the plurality of packets preceding the first packet, the second packet including a payload and a secondary packet identifier, the payload of the second packet including content being the video or the audio encrypted using a second key different than the first key;
a second program block to determine that the second packet identifier identifies the content contained within the payload of the second packet is duplicative of the content contained in the payload of the first packet; and
a third program block to recover the duplicative content contained in the payload of the second packet and disregard the content contained in the payload of the first packet.
11. The software packet filter program of claim 10, wherein the third program block disregards the content contained in the payload of the first packet by discarding the content contained in the payload of the first packet and thereby refraining from recovering the payload of the first packet when the second packet identifier of the second packet preceding the first packet is set to a predetermined value.
12. The software packet filter program of claim 10, wherein the duplicative content contained in the payload of the second packet is video encrypted using a first key and the content in the payload of the first packet is the video encrypted using a second key different than the first key.
13. The software packet filter program of claim 10 further comprising:
a fourth program block to provide the duplicative content to a descrambler situated within a digital device.
14. A method for receiving content from a head-end by a digital device, comprising:
receiving an Internet Protocol (IP) datagram including a plurality of Packetized Elementary Stream (PES) packets, the plurality of PES packets comprises (i) a first PES packet of the plurality of PES packets including a first packet identifier (PID1) to indicate a type of content contained in the PES packet being at least one of video and audio encrypted using a first key, and (ii) a second PES packet of the plurality of PES packets including a secondary packet identifier to indicate that the second PES packet includes content duplicative of the content contained in the first PES packet the duplicative content of the second PES packet being the at least one of the video and audio encrypted using a second key different than the first key;
recovering the duplicative content contained in the second PES packet; and
disregarding the content contained in the first PES packet.
15. The method of claim 14, wherein the content stored in the payload of the first packet is video encrypted using a first encryption algorithm and the duplicative content in the payload of the second packet is the video encrypted using a second encryption algorithm different than the first encryption algorithm.
16. The method of claim 1, wherein the data stored in the payload of the first packet is video encrypted using a first encryption algorithm and the duplicative data in the payload of the second packet is the video encrypted using a second encryption algorithm different than the first encryption algorithm.
17. A digital device, comprising:
means for receiving an Internet Protocol (IP) datagram including a plurality of packets, the plurality of packets comprises (i) a first packet including a first packet identifier to indicate a type of content contained in the first packet, and (ii) a second packet including a secondary packet identifier to indicate that the second packet includes content that is identical to the content contained in the first packet and encrypted differently from the content contained in the first packet, wherein the content stored in the first packet being video or audio encrypted using a first key and the content in the second packet being duplicative content that is the video or the audio encrypted using a second key different than the first key;
means for recovering the duplicative content contained in the second packet; and
means for disregarding the content contained in the first packet.