Microprocessor controlled tube apparatus having reduced radio frequency emanations
First Claim
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1. A dielectric tube sealer comprising:
- first and second jaws oriented to receive a tube portion in a space therebetween;
said first jaw being fixed and being coupled to a radio frequency generator; and
said second jaw being movable with respect to said first jaw along an axis and being coupled to around potential, said second jaw being mounted on a single shaft oriented substantially parallel to said axis, wherein at least a portion of said shaft extends along a shaft axis that is substantially parallel to but spaced from said jaw axis.
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Abstract
A dielectric tube sealer is provided with first and second jaws oriented along a jaw axis and positioned to receive a tube portion in a space therebetween. The first jaw is fixed and is coupled to a radio frequency generator. The second jaw is movable with respect to the first jaw along the jaw and is coupled to ground potential. The second jaw is mounted on a single shaft. At least a portion of the shaft extends along a shaft axis that is substantially parallel to, but spaced from, the jaw axis.
26 Citations
18 Claims
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1. A dielectric tube sealer comprising:
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first and second jaws oriented to receive a tube portion in a space therebetween;
said first jaw being fixed and being coupled to a radio frequency generator; and
said second jaw being movable with respect to said first jaw along an axis and being coupled to around potential, said second jaw being mounted on a single shaft oriented substantially parallel to said axis, wherein at least a portion of said shaft extends along a shaft axis that is substantially parallel to but spaced from said jaw axis.
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2. The dielectric tube sealer according to claim 1, further comprising a solenoid coupled to said shaft, wherein said shaft axis is spaced from, but substantially parallel to, an axis of said solenoid.
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3. The dielectric tube sealer according to claim 2, wherein said axis of said solenoid corresponds to positions on said first and second jaws that contact a tube portion to be sealed, thereby facilitating compression of the tube portion along an axis of compression that is common to said axis of said solenoid.
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4. A dielectric tube sealer comprising:
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first and second jaws oriented along a jaw axis and positioned to receive a tube portion in a space therebetween;
said first jaw being fixed and being coupled to a radio frequency generator; and
said second jaw being movable with respect to said first jaw along said jaw axis and being coupled to ground potential, said second jaw being mounted on a single shaft, wherein at least a portion of said shaft extends along a shaft axis that is substantially parallel to but spaced from said jaw axis.
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5. The dielectric tube sealer according to claim 4, said shaft having a rounded cross-sectional shape.
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6. The dielectric tube sealer according to claim 5, said second jaw having a substantially cylindrical shape.
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7. The dielectric tube sealer according to claim 4, wherein said first jaw is at least partially electrically insulated, thereby reducing radio frequency emissions from said first jaw.
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8. The dielectric tube sealer according to claim 7, further comprising an insulator at least partially surrounding said first jaw.
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9. The dielectric tube sealer according to claim 4, further comprising an enclosure.
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10. The dielectric tube sealer according to claim 9, wherein said first jaw is stationary with respect to said enclosure.
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11. The dielectric tube sealer according to claim 9, said second jaw extending outwardly from said enclosure for movement toward said enclosure and said first jaw.
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12. The dielectric tube sealer according to claim 9, wherein said second jaw is mounted for reciprocal movement with respect to said enclosure.
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13. The dielectric tube sealer according to claim 4, wherein said jaw shaft has a substantially ā
- Uā
shaped configuration.
- Uā
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14. The dielectric tube sealer according to claim 4, further comprising an insulator positioned to isolate said first and second jaws from one another.
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15. The dielectric tube sealer according to claim 14, wherein said shaft passes through said insulator.
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16. The dielectric tube sealer according to claim 15, wherein said shaft is mounted for sliding movement through an aperture formed in said insulator.
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17. The dielectric tube sealer according to claim 4, further comprising a solenoid coupled to said shaft, wherein said shaft axis is spaced from, but substantially parallel to, an axis of said solenoid.
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18. The dielectric tube sealer according to claim 17, wherein said axis of said solenoid corresponds to positions on said first and second jaws that contact a tube portion to be sealed, thereby facilitating compression of the tube portion along an axis of compression that is common to said axis of said solenoid.
Specification