Communication wire
First Claim
1. A cable having a central axis, the cable comprising:
- a plurality of twisted pairs of conductors; and
a jacket defining a central passage in which the plurality of twisted pairs of conductors is located, the central passage including air, the air in the central passage occupying a volume between the plurality of twisted pairs of conductors, the jacket including legs that project inwardly toward the central axis of the cable, the jacket defining channels located between the legs, the channels including air, the air in the channels being in fluid communication with the air in the central passage that occupies the volume between the plurality of twisted pairs of conductors, each of the channels having two opposing sides, a side interconnecting the two opposing sides, wherein the side interconnecting the two opposing sides forms discretely identifiable corners with the two opposing sides, and an open side that faces inwardly toward the central axis, the channels having lengths that run along a length of the jacket, and the number of channels being greater than the number of twisted pairs of conductors.
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Accused Products
Abstract
The present invention relates to an improved cable comprising a plurality of twisted pairs of conductors and a jacket in which the twisted pairs of conductors are located. The jacket defines an interior passage that extends along a length of the jacket, the interior passage including a central air region and a peripheral air region. The plurality of twisted pairs of conductors are positioned within the central air region. The peripheral air region of the interior passage includes a plurality of air channels that are circumferentially spaced relative to one another about the central air region of the interior passage. The channels are in fluid communication with the air in the central air region of the interior passage. Apparatuses and methods of manufacturing the improved cable are also disclosed.
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Citations
47 Claims
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1. A cable having a central axis, the cable comprising:
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a plurality of twisted pairs of conductors; and a jacket defining a central passage in which the plurality of twisted pairs of conductors is located, the central passage including air, the air in the central passage occupying a volume between the plurality of twisted pairs of conductors, the jacket including legs that project inwardly toward the central axis of the cable, the jacket defining channels located between the legs, the channels including air, the air in the channels being in fluid communication with the air in the central passage that occupies the volume between the plurality of twisted pairs of conductors, each of the channels having two opposing sides, a side interconnecting the two opposing sides, wherein the side interconnecting the two opposing sides forms discretely identifiable corners with the two opposing sides, and an open side that faces inwardly toward the central axis, the channels having lengths that run along a length of the jacket, and the number of channels being greater than the number of twisted pairs of conductors. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A data transmission cable comprising:
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four or fewer twisted pairs of data transmission conductors; and a jacket within which the four or fewer twisted pairs of data transmission conductors are located, the jacket defining interior channels that are circumferentially spaced relative to one another about the four or fewer of twisted pairs of data transmission conductors, the interior channels defining legs thereinbetween that project inwardly toward a central axis of the jacket, the legs being attached to the jacket at outer ends and the legs having free, unattached inner ends, the interior channels each having an open side that faces inwardly toward the central axis of the jacket, the four or fewer twisted pairs of data transmission conductors being exposed to gas within the interior channels, the four or fewer twisted pairs of data transmission conductors generally not occupying the interior channels, wherein the four or fewer twisted pairs of data transmission conductors include four twisted pairs of data transmission conductors and wherein the four or fewer twisted pairs of data transmission conductors are twisted around each other to define a core having diameter less than about 0.25 inches. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29)
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30. A data transmission cable comprising:
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four or fewer twisted pairs of data transmission conductors, the four or fewer twisted pairs of data transmission conductors defining a core; and a jacket defining an interior passage that extends along a length of the jacket, the interior passage including a central region including air and a peripheral region, the four or fewer twisted pairs of data transmission conductors being positioned within the central region, the air in the central region occupying a volume between the four or fewer twisted pairs of conductors, the peripheral region of the interior passage including a plurality of channels that are circumferentially spaced relative to one another about the central region of the interior passage, the channels including air, the air in the channels being in fluid communication with the air in the volume of the central region between the four or fewer twisted pairs of data transmission conductors, the number of channels being greater than the number of twisted pairs of data transmission conductors. - View Dependent Claims (31, 32, 33, 34)
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35. A data transmission cable comprising:
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four or fewer twisted pairs of data transmission conductors, each of the four or fewer twisted pairs of data transmission conductors being covered by a separate insulation layer, the four or fewer twisted pairs of data transmission conductors defining a core; and a jacket defining an interior air passage that extends along a length of the jacket, the interior air passage having a central region including air and a peripheral region including air, the core being located within the central region of the interior air passage with the core being exposed to the air in the central region, the peripheral region of the interior air passage including a plurality of channels that are circumferentially spaced relative to one another about the core, the plurality of channels including air, the air in the plurality of channels being in fluid communication with the air in the central region to which the core is exposed, the jacket including an inner portion at which the plurality of channels is defined and an outer portion that surrounds the inner portion, the number of channels being greater than the number of twisted pairs of data transmission conductors. - View Dependent Claims (36, 37, 38, 39, 40, 41, 42, 43, 44, 45)
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46. A data transmission cable comprising:
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four or fewer twisted pairs of data transmission conductors, the four or fewer twisted pairs of data transmission conductors defining a core; and a jacket defining a single passage with a central region in fluid communication with a peripheral region, the four or fewer twisted pairs of data transmission conductors being positioned within the central region, the jacket including an inner portion and an outer portion, the inner portion of the jacket including a plurality of projections that project inwardly from the outer portion of the jacket, the projections having inner unattached ends that define an outer boundary of the central region of the single passage, the jacket defining air channels between the projections, the four or fewer twisted pairs of data transmission conductors being exposed to air within the air channels, the air channels each being visible when the data transmission cable is viewed in transverse cross-section, the air channels forming the peripheral region of the single passage, the number of air channels being greater than the number of twisted pairs of conductors. - View Dependent Claims (47)
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Specification