Ignition cable

Claim 2

In an ignition cable for use with vehicle engines having spark ignition, the improved construction comprising: a flexible resistive conductor means for conducting electrical current to provide ignition, a flexible coating layer having controlled electrical resistance generally surrounding the resistive conductor means, said layer being comprised of, about 50 percent to about 90 percent by weight of fluoroelastomer providing the coating with sustained thermal resistance on exposure to temperatures of about 500* F or higher, about 10 percent to about 50 percent by weight of conductive pigment for providing conductivity to the coating, and about 0.05 percent to about 15 percent by weight of flow control agent for facilitating application usage of the coating.

Claim 3

IN AN IGNITION CABLE FOR USE WITH VEHICLE ENGINES HAVING SPARK IGNITION, THE IMPROVED CONSTRUCTION COMPRISING: A FLEXIBLE RESISTIVE CONDUCTOR MEANS FOR CONDUCTING ELECTRICAL CURRENT TO PROVIDE IGNITION, A FLEXIBLE COATING LAYER HAVING CONTROLLED ELECTRICAL RESISTANCE GENERALLY SURROUNDING THE RESISTIVE CONDUCTOR MEANS, SAID LAYER BEING COMPRISED OF, ABOUT 50 PERCENT TO ABOUT 90 PERCENT BY WEIGHT OF FLUOROELASTOMER PROVIDING THE COATING WITH SUSTAINED THERMAL RESISTANCE ON EXPOSURE TO TEMPERATURES OF ABOUT 500* F OR HIGHER, ABOUT 19 PERCENT TO ABOUT 50 PERCENT BY WEIGHT OF CONDUCTIVE PIGMENT FOR PROVIDING CONDUCTIVITY TO THE COATING, AND ABOUT 0.05 PERCENT TO ABOUT 15 PERCENT BY WEIGHT OF FLOW

Claim 4

IN AN IGNITION CABLE FOR USE WITH VEHICLE ENGINES HAVING SPARK IGNITION, THE IMPROVED CONSTRUCTION COMPRISING: A FLEXIBLE RESISTIVE CONDUCTOR MEANS FOR CONDUCTING ELECTRICAL CURRENT TO PROVIDE IGNITION, A FLEXIBLE COATING LAYER HAVING CONTROLLED ELECTRICAL RESISTANCE GENERALLY SURROUNDING THE RESISTIVE CONDUCTOR MEANS, SAID LAYER BEING COMPRISED OF, ABOUT 50 PERCENT TO ABOUT 90 PERCENT BY WEIGHT OF FLUOROELASTOMER PROVIDING THE COATING WITH SUSTAINED THERMAL RESISTANCE ON EXPOSURE TO TEMPERATURES OF ABOUT 500* F OR HIGHER, ABOUT 19 PERCENT TO ABOUT 50 PERCENT BY WEIGHT OF CONDUCTIVE PIGMENT FOR PROVIDING CONDUCTIVITY TO THE COATING, AND ABOUT 0.05 PERCENT TO ABOUT 15 PERCENT BY WEIGHT OF FLOW

Claim 5

The invention of claim 1 wherein, said fluoroelastomer is an elastomeric material selected from at least one of the group consisting of fluorinated and fluorochlorinated polymers.

Claim 6

The invention of claim 1 wherein, said conductive pigment means is a finely particulated material selected from at least one of the group consisting of graphites and carbons.

Claim 7

The invention of claim 1 wherein, said flow control agent means is a finely divided material selected from at least one of the group consisting of the silicas and silicates.

Claim 8

The invention of claim 1 wherein, said flow control agent means is present from about 0.05 percent to about 10 percent by weight of total solids.

Claim 9

In an electrically conductive device, the improved construction comprising: a flexible resistive conductor means for conducting electrical current, a flexible conductive coating means generally overlaying the resistive conductor means, said coating being made from a composition essentially consisting of, about 50 percent to about 90 percent by weight of non vulcanized fluoroelastomer means for providing the coating with sustained resistance to high temperatures in the range of about 500* F, about 10 percent to about 50 percent by weight of conductive pigment means for providing conductivity to the coating, and said coating composition including about 1/2 percent to about 50 percent by weight total solids of the above in a solvent carrier.

Claim 10

In an electrically conductive device, the improved construction comprising: a flexible resistive conductor means for conducting electrical current, a flexible conductive coating means generally overlaying the resistive conductor means, said coating being made from a composition essentially consisting of, about 50 percent to about 90 percent by weight of non vulcanized fluoroelastomer means for providing the coating with sustained resistance to high temperatures in the range of about 500* F, about 10 percent to about 50 percent by weight of conductive pigment means for providing conductivity to the coating, and said coating composition including about 1/2 percent to about 50 percent by weight total solids of the above in a solvent carrier.

Claim 11

The invention of claim 6 wherein, said fluoroelastomer means is an elastomeric material selected from at least one of the group consisting of fluorinated and fluorochlorinated olefin polymers.

Claim 12

The invention of claim 6 wherein, said flow control agent means is a finely divided material selected from at least one of the group consisting of the silicas and silicates.

Claim 13

In an electrically conductive device, the improved construction comprising: a flexible resistive conductor means for conducting electrical current, a flexible conductive coating means generally overlaying the resistive conductor means, said coating being made from a composition comprised of, about 60 percent to about 80 percent by weight of fluoroelastomer means for providing the coating with sustaIned resistance to high temperatures in the range of about 500* F, about 40 percent to about 20 percent by weight of conductive pigment means for providing conductivity to the coating, and 0.05 percent to about 10 percent by weight of flow control agent means for facilitation application usage of the coating, and said coating composition including about 1/2 percent to about 50 percent by weight total solids of the above in a solvent carrier.

Claim 14

In an electrically conductive device, the improved construction comprising: a flexible resistive conductor means for conducting electrical current, a flexible conductive coating means generally overlaying the resistive conductor means, said coating being made from a composition comprised of, about 60 percent to about 80 percent by weight of fluoroelastomer means for providing the coating with sustaIned resistance to high temperatures in the range of about 500* F, about 40 percent to about 20 percent by weight of conductive pigment means for providing conductivity to the coating, and 0.05 percent to about 10 percent by weight of flow control agent means for facilitation application usage of the coating, and said coating composition including about 1/2 percent to about 50 percent by weight total solids of the above in a solvent carrier.

Claim 15

The invention of claim 9 wherein, said total solids content is from about 5 percent to about 25 percent.

Claim 16

In an ignition cable for use with vehicle engines having spark ignition, the improved construction comprising: a flexible resistive conductor means for conducting electrical current to provide ignition, a flexible coating layer having controlled electrical resistance generally surrounding the resistive conductor means, said layer being comprised of, about 50 percent to about 90 percent by weight of fluoroelastomer providing the coating with sustained thermal resistance on exposure to temperatures of about 500* F or higher, about 10 percent to about 50 percent by weight of conductive pigment for providing conductivity to the coating, and a small amount greater than zero to about 15 percent by weight of flow control agent for facilitating application usage of the coating.

Claim 17

In an ignition cable for use with vehicle engines having spark ignition, the improved construction comprising: a flexible resistive conductor means for conducting electrical current to provide ignition, a flexible coating layer having controlled electrical resistance generally surrounding the resistive conductor means, said layer being comprised of, about 50 percent to about 90 percent by weight of fluoroelastomer providing the coating with sustained thermal resistance on exposure to temperatures of about 500* F or higher, about 10 percent to about 50 percent by weight of conductive pigment for providing conductivity to the coating, and a small amount greater than zero to about 15 percent by weight of flow control agent for facilitating application usage of the coating.

Claim 18

In an electrically conductive device, the improved construction comprising: a flexible resistive conductor means for conducting electrical current, a flexible conductive coating means generally overlaying the resistive conductor means, said coating being made from a composition comprised of, about 50 percent to about 90 percent by weight of fluoroelastomer means for providing the coating was sustained resistance to high temperatures in the range of about 500* F, about 10 percent to about 50 percent by weight of conductive pigment means for providing conductivity to the coating, and a small amount greater than zero up to about 15 percent by weight of flow control agent means for facilitating application usage of the coating, and said coating composition including about 1/2 percent to about 50 percent by weight total solids of the above in a solvent carrier.

Claim 19

In an electrically conductive device, the improved construction comprising: a flexible resistive conductor means for conducting electrical current, a flexible conductive coating means generally overlaying the resistive conductor means, said coating being made from a composition comprised of, about 50 percent to about 90 percent by weight of fluoroelastomer means for providing the coating was sustained resistance to high temperatures in the range of about 500* F, about 10 percent to about 50 percent by weight of conductive pigment means for providing conductivity to the coating, and a small amount greater than zero up to about 15 percent by weight of flow control agent means for facilitating application usage of the coating, and said coating composition including about 1/2 percent to about 50 percent by weight total solids of the above in a solvent carrier.

Claim 20

The invention of claim 12 wherein, said conductive pigment means is a finely particulated material selected from at least one of the group consisting of graphite and conductive carbon.

Claim 21

The invention of claim 12, wherein, said conductive pigment means is a finely particulated material selected from at least one of the group consisting of graphite, silver, copper, and noble metals.

Claim 22

The invention of claim 1 wherein, said fluoroelastomer is a vinylidene fluoride-hexafluoropropene copolymer type material.

Claim 23

The invention of claim 6 wherein, said fluoroelastomer is a vinylidene fluoride-hexafluoropropene copolymer type material.

Claim 24

The invention of claim 12 wherein, said fluoroelastomer is a vinylidene fluoride-hexafluoropropene copolymer type material.

Claim 25

The invention of claim 14 wherein, said fluoroelastomer is a vinylidene fluoride-hexafluoropropene copolymer type material.

Claim 26

The invention of claim 6 wherein, said fluoroelastomer is an elastomeric material selected from at least one of the group consisting of a fluorinated polymer and a fluoro-chlorinated polymer.