Patents Assigned to Cable Design Technologies, Inc.
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Publication number: 20110155419Abstract: A cable exhibiting reduced crosstalk between transmission media includes a core having a profile with a shape which defines spaces or channels to maintain a spacing between transmission media in a finished cable. The core is formed of a conductive material to further reduce crosstalk. A method of producing a cable introduces a core as described above into the cable assembly and imparts a cable closing twist to the assembly.Type: ApplicationFiled: May 5, 2003Publication date: June 30, 2011Applicant: Cable Design Technologies Inc. dba Mohawk/CDTInventors: William T. Clark, Peter D. McDonald, Joseph Dellagala
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Publication number: 20060169478Abstract: A multi-pair cable including a plurality of twisted pairs of insulated conductors, including first and second twisted pairs, each having a closing lay length (twist lay length measured after the twisted pairs are cabled together with a particular cable lay) of less than about 0.6 inches, the plurality of twisted pairs being twisted together with a cable lay of greater than about three inches to form the cable. In some examples, the multi-pair cable may further comprise a separator disposed between the first and second twisted pairs. In another example, a ratio between a longest closing lay length and a shortest closing lay length in the cable is less than 1.65 inches. In another example, the cable further includes at least one additional twisted pair of conductors having a closing lay length that is greater than about 0.6 inches, and the cable lay length is less than about four inches.Type: ApplicationFiled: January 28, 2005Publication date: August 3, 2006Applicant: Cable Design Technologies, Inc.Inventor: William Clark
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Publication number: 20050006132Abstract: Cables including a plurality of twisted pairs of insulated conductors and a core disposed between the plurality of twisted pairs of insulated conductors so as to separate at least one of the plurality of twisted pairs of insulated conductors from others of the plurality of twisted pairs of insulated conductors. In one example, a cable may include a jacket having a plurality of protrusions. In another example, the core may include one or more pinch points to facilitate breaking of the core. In yet another example, two or more cables may be bundled, and possibly twisted, together to form a bundled cable.Type: ApplicationFiled: November 10, 2003Publication date: January 13, 2005Applicant: Cable Design Technologies Inc., dba Mohawk/CDTInventor: William Clark
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Patent number: 6812408Abstract: An improved data telecommunications cable includes a plurality of twisted pairs of insulated conductors and at least one configurable tape separator disposed between the plurality of twisted pairs of insulated conductors along a longitudinal length of the cable. The communications cable also includes a jacket assembly enclosing the plurality of twisted pairs of insulated conductors and the configurable tape separator. The configurable tape separator separates at least one of the plurality of twisted pairs of insulated conductors from others of the plurality of twisted pairs of insulated conductors with a spacing sufficient to provide a desired crosstalk isolation between each of the plurality of twisted pairs of insulated conductors. The configurable tape separator may include a dielectric tape and one or more conductive or partially conductive layers.Type: GrantFiled: May 28, 2003Date of Patent: November 2, 2004Assignee: Cable Design Technologies, Inc.Inventors: William Clark, Joseph Dellagala, Kenneth Consalvo
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Patent number: 6787694Abstract: The present invention includes a twisted pair cable having a plurality of pairs, wherein each has two conductors. Each of the conductors is covered with an inner layer insulator and an outer layer insulator, wherein the positioning of the conductors within the inner and outer insulators is eccentric with respect to the inner and outer insulators. This invention also includes a method of making a cable of the same configuration.Type: GrantFiled: June 1, 2000Date of Patent: September 7, 2004Assignee: Cable Design Technologies, Inc.Inventors: Gavriel Vexler, Gilles Gagnon
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Publication number: 20030217863Abstract: An improved data telecommunications cable according to the invention includes a plurality of twisted pairs of insulated conductors, and a substantially flat configurable dielectric separator disposed between the plurality of twisted pairs of insulated conductors along a longitudinal length of the telecommunications cable. The data communications cable also includes a jacket assembly enclosing the plurality of twisted pairs of insulated conductors and the substantially flat dielectric pair separator. The substantially flat dielectric pair separator separates each twisted pair of insulated conductors from every other twisted pair of insulated conductors with a spacing sufficient to provide a desired crosstalk isolation between each of the plurality of twisted pairs of insulated conductors.Type: ApplicationFiled: January 3, 2003Publication date: November 27, 2003Applicant: Cable Design Technologies, Inc.Inventors: William Clark, Joseph Dellagala, Kenneth Consalvo
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Patent number: 6596944Abstract: A cable exhibiting reduced crosstalk between transmission media includes a core having a profile with a shape which defines spaces or channels to maintain a spacing between transmission media in a finished cable. The core is formed of a conductive material to further reduce crosstalk. A method of producing a cable introduces a core as described above into the cable assembly and imparts a cable closing twist to the assembly.Type: GrantFiled: March 21, 2000Date of Patent: July 22, 2003Assignee: Cable Design Technologies, Inc.Inventors: William T. Clark, Peter D. MacDonald, Joseph Dellagala
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Patent number: 6570095Abstract: An improved data telecommunications cable according to the invention includes a plurality of twisted pairs of insulated conductors, and a dielectric pair separator formed with a plurality of folds, to provide a plurality of grooves extending along a longitudinal length of the dielectric filler. Each twisted pair of insulated conductors is disposed within a groove of the dielectric pair separator. The data communications cable also includes a jacket assembly enclosing the plurality of twisted pairs of insulated conductors and the dielectric pair separator. The dielectric pair separator separates each twisted pair of insulated conductors from every other twisted pair of insulated conductors with a spacing sufficient to provide a desired crosstalk isolation between each of the plurality of twisted pairs of insulated conductors.Type: GrantFiled: May 11, 2001Date of Patent: May 27, 2003Assignee: Cable Design Technologies, Inc.Inventors: William Clark, Joseph Dellagala, Kenneth Consalvo
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Publication number: 20030019655Abstract: A dual layer shielded electrical cable is disclosed. The cable has at least a pair of insulated conductors, a metallic shield and a jacket surrounding the shield and insulated conductors. A first jacket layer made of flame retardant material surrounds the insulated conductors. A metallic shield then surrounds the first jacket layer. A second jacket layer then surrounds and seals the metallic shield against the first jacket layer, such that the insertion of the first jacket layer provides the cable with electrical signal attenuation and impedance characteristics equivalent to that of an unshielded cable with similar conductor insulation thicknesses. In another embodiment, a dual layer plenum rated electrical cable is disclosed. The cable has at least a pair of insulated conductors and a jacket surrounding the insulated conductors. Both the first and second jacket layer are made of a low-smoke and flame-retardant materials.Type: ApplicationFiled: July 1, 2002Publication date: January 30, 2003Applicant: Cable Design Technologies, Inc.Inventor: Gilles Gagnon
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Patent number: 6441308Abstract: A dual layer shielded electrical cable is disclosed. The cable has at least a pair of insulated conductors, a metallic shield and a jacket surrounding the shield and insulated conductors. A first jacket layer made of flame retardant material surrounds the insulated conductors. A metallic shield then surrounds the first jacket layer. A second jacket layer then surrounds and seals the metallic shield against the first jacket layer, such that the insertion of the first jacket layer provides the cable with electrical signal attenuation and impedance characteristics equivalent to that of an unshielded cable with similar conductor insulation thicknesses. In another embodiment, a dual layer plenum rated electrical cable is disclosed. The cable has at least a pair of insulated conductors and a jacket surrounding the insulated conductors. Both the first and second jacket layer are made of a low-smoke and flame-retardant materials.Type: GrantFiled: June 7, 1996Date of Patent: August 27, 2002Assignee: Cable Design Technologies, Inc.Inventor: Gilles Gagnon
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Patent number: 6303867Abstract: A telecommunications cable is disclosed in which a plurality of inwardly extending projections from the cable jacket, form a first and second plurality of substantially parallel longitudinal channels within the cable jacket. The first and second plurality of longitudinal channels are spaced apart from one another with respect to a reference line that transverses the cable, wherein the plurality of inwardly extending projections provide the spaced apart distance between the first plurality and the second plurality of longitudinally extending channels and between corresponding transmission media disposed within the first and second plurality of longitudinally extending channels. With this arrangement, cross talk between the transmission media within the cable is reduced and alien crosstalk between adjacently disposed or stacked cables is also reduced.Type: GrantFiled: August 29, 2000Date of Patent: October 16, 2001Assignee: Cable Design Technologies, Inc.Inventors: William Clark, Joseph Dellagala, Kenneth Consalvo
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Patent number: 6273977Abstract: A method for making cable of at least two thermoplastic insulated electrical conductors by thermal bonding. Two electrical conductors are moved into an extruder and are coated independently with heated thermoplastic insulation which maintains concentricity of each conductor with respect to the surrounding insulation. The insulated conductors are held in a spaced relationship until the insulation sets and then the heated insulated conductors are touched together causing the heated insulation to fuse together thereby joining them.Type: GrantFiled: April 13, 1995Date of Patent: August 14, 2001Assignee: Cable Design Technologies, Inc.Inventors: Scott W. Harden, David R. Harden
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Patent number: 6248954Abstract: An improved data telecommunications cable according to the invention includes a plurality of twisted pairs of insulated conductors, and a dielectric pair separator formed with a plurality of folds, to provide a plurality of grooves extending along a longitudinal length of the dielectric filler. Each twisted pair of insulated conductors is disposed within a groove of the dielectric pair separator. The data communications cable also includes a jacket assembly enclosing the plurality of twisted pairs of insulated conductors and the dielectric pair separator. The dielectric pair separator separates each twisted pair of insulated conductors from every other twisted pair of insulated conductors with a spacing sufficient to provide a desired crosstalk isolation between each of the plurality of twisted pairs of insulated conductors.Type: GrantFiled: February 25, 1999Date of Patent: June 19, 2001Assignee: Cable Design Technologies, Inc.Inventors: William Clark, Joseph Dellagala, Kenneth Consalvo
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Patent number: 6162992Abstract: A telecommunications cable is disclosed in which a plurality of inwardly extending projections from the cable jacket, form a first and second plurality of substantially parallel longitudinal channels within the cable jacket. The first and second plurality of longitudinal channels are spaced apart from one another with respect to a reference line that transverses the cable, wherein the plurality of inwardly extending projections provide the spaced apart distance between the first plurality and the second plurality of longitudinally extending channels and between corresponding transmission media disposed within the first and second plurality of longitudinally extending channels. With this arrangement, cross talk between the transmission media within the cable is reduced and alien crosstalk between adjacently disposed or stacked cables is also reduced.Type: GrantFiled: March 23, 1999Date of Patent: December 19, 2000Assignee: Cable Design Technologies, Inc.Inventors: William Clark, Joseph Dellagala, Kenneth Consalvo
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Patent number: 6074503Abstract: A cable exhibiting reduced crosstalk between transmission media includes a core having a profile with a shape which defines spaces or channels to maintain a spacing between transmission media in a finished cable. The core is formed of a conductive material to further reduce crosstalk. A method of producing a cable introduces a core as described above into the cable assembly and imparts a cable closing twist to the assembly.Type: GrantFiled: April 22, 1997Date of Patent: June 13, 2000Assignee: Cable Design Technologies, Inc.Inventors: William T. Clark, Peter D. MacDonald, Joseph Dellagala
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Patent number: 5834697Abstract: A communication cable includes at least a first and a second twisted pairs of conductors. The first twisted pair of conductors is covered by a first insulation material, and the second twisted pair of conductors is covered by a second insulation material that is different than the first insulation material. The second twisted pair of conductors has a signal phase delay that is substantially equal to the signal phase delay of the first twisted pair of conductors such that the skew of the cable is substantially zero. In certain embodiments, the first insulation material is a fluoropolymer. In such embodiments, the second insulation material may be a nonfluoropolymer. In addition, the twist lay of the first twisted pair of conductors may be different than the twist lay of the second twisted pair of conductors. Moreover, the thickness of the first insulation material may be different than the thickness of the second insulation material.Type: GrantFiled: August 1, 1996Date of Patent: November 10, 1998Assignee: Cable Design Technologies, Inc.Inventors: James Baker, Joseph Dellagala
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Patent number: 5821466Abstract: A high-speed data communications cable has geometrically concentric layers of twisted pairs of wires. A first, innermost layer includes a first twisted pair of wires having a unique lay length and a first and second dielectric filler. A second geometrically concentric layer is formed about the innermost layer and includes 9 twisted pairs of wires having 5 lay lengths. A third geometrically concentric layer is formed about the second layer and includes 25 twisted pairs of wires having 5 lay lengths. The first, second and third layers are enclosed in a thermoplastic jacket resulting in a flexible data cable with a minimal diameter. Additional layers of more twisted pairs of wires may also be used. A plurality of communication cables may also be commonly sheathed.Type: GrantFiled: December 23, 1996Date of Patent: October 13, 1998Assignee: Cable Design Technologies, Inc.Inventors: William T. Clark, Joseph Dellagala, Robert Allen