Engine ignition system with an insulated and extendable extender

Claim 2

An insulated ignition extender adapted for use in an engine to connect between an igniter and a source of high energy, comprising: a first electrically conducting core adapted to contact one of the igniter and the source of high energy; a second electrically conducting core adapted to contact the other of the igniter and the source of high energy; PG,9 one of said cores being axially movable with respect to the other core to provide a variable length extender; means for axially biasing apart the first and second electrically conducting cores and for providing a connection between the first and second electrically conducting cores so that electrical energy passes therethrough; and a first outer tubular insulating member fixedly attached to and surrounding at least a portion of one of the first and second electrically conducting cores surrounding the biasing and providing means and slidably surrounding at least a portion of the other of the first and second electrically conducting cores.

Claim 3

An insulated ignition extender adapted for use in an engine to connect between an igniter and a source of high energy, comprising: a first electrically conducting core adapted to contact one of the igniter and the source of high energy; a second electrically conducting core adapted to contact the other of the igniter and the source of high energy; one of said cores being axially movable with respect to the other core to provide a variable length extender; means for axially biasing apart the first and second electrically conducting cores and for providing a connection between the first and second electrically conducting cores so that electrical energy passes therethrough; and means for insulating the first electrically conducting core, the second electrically conducting core and the biasing and providing means so that substantially all of the electrical energy passing therethrough is transmitted from the source of high enery to the igniter, including a first outer tubular insulating member fixedly attached to and surrounding at least a portion of one of the first and second electrically conducting cores, surrounding the biasing and providing means and slidably surrounding at least a portion of the other of the first and second electrically conducting cores.

Claim 4

An insulated ignition extender adapted for use in an engine to connect between an igniter and a source of high energy, comprising: a first electrically conducting core adapted to contact one of the igniter and the source of high energy; a second electrically conducting core adapted to contact the other of the igniter and the source of high energy; one of said cores being axially movable with respect to the other core to provide a variable length extender; means for axially biasing apart the first and second electrically conducting cores and for providing a connection between the first and second electrically conducting cores so that electrical energy passes therethrough; and means for insulating the first electrically conducting core, the second electrically conducting core and the biasing and providing means so that substantially all of the electrical energy passing therethrough is transmitted from the source of high enery to the igniter, including a first outer tubular insulating member fixedly attached to and surrounding at least a portion of one of the first and second electrically conducting cores, surrounding the biasing and providing means and slidably surrounding at least a portion of the other of the first and second electrically conducting cores.

Claim 5

The ignition extender of claim 2 wherein the insulating means further includes a second outer tubular insulating member connected to and surrounding at least a portion of the other of the first and second electrically conducting cores, said first insulating member including a portion 40 extending beyond said one electrically conducting core.

Claim 6

The ignition extender of claim 3 wherein said first outer tubular insulating member telescopingly extends into said second outer tubular insulating member.

Claim 7

The ignition extender of claim 2 wherein the biasing means is a compression spring.

Claim 8

The ignition extender of claim 5 wherein the compression spring is in electrically conducting abutment with the first and second electrically conducting cores.

Claim 9

The ignition extender of claim 3 wherein said first and second outer tubular insulating members are made of a polytetrafluorethlene material.

Claim 10

The ignition extender of claim 2 wherein the first and second electrically conducting cores are aluminum.

Claim 11

The ignition extender of claim 2 wherein the providing means is a compression spring.

Claim 12

An ignition system for use in an engine having a combustion chamber and a cover attached to the engine and having a portion spaced therefrom, comprising: an igniter extending into the combustion chamber; a source of high energy connected to the portion of the cover; a shield extending between and sealably connected to the cover and the engine, said shield having an axially extending passage therein; and an insulated, resiliently biased extendable ignition extender disposed in electrical conducting contact between the source of high energy and the igniter and positioned within the passage of the shield, said extender including a first electrically conducting core adapted to contact one of the igniter and the source of high energy, a second electrically conducting core adapted to contact the other of the igniter and the source of high energy, means for axially biasing apart the first and second electrically conducting cores and means for insulating the first electrically conducting core, the second electrically conducting core and the biasing and providing means so that substantially all of the electrical energy passing therethrough is transmitted from the source of high energy to the igniter and said insulating means including a first outer tubular insulating member fixedly attached and surrounding at least a portion of one of the first and second electrically conducting cores, surrounding the biasing and providing means and slidably surrounding at least a portion of the other of the first and second electrically conducting cores.

Claim 13

An ignition system for use in an engine having a combustion chamber and a cover attached to the engine and having a portion spaced therefrom, comprising: an igniter extending into the combustion chamber; a source of high energy connected to the portion of the cover; a shield extending between and sealably connected to the cover and the engine, said shield having an axially extending passage therein; and an insulated, resiliently biased extendable ignition extender disposed in electrical conducting contact between the source of high energy and the igniter and positioned within the passage of the shield, said extender including a first electrically conducting core adapted to contact one of the igniter and the source of high energy, a second electrically conducting core adapted to contact the other of the igniter and the source of high energy, means for axially biasing apart the first and second electrically conducting cores and means for insulating the first electrically conducting core, the second electrically conducting core and the biasing and providing means so that substantially all of the electrical energy passing therethrough is transmitted from the source of high energy to the igniter and said insulating means including a first outer tubular insulating member fixedly attached and surrounding at least a portion of one of the first and second electrically conducting cores, surrounding the biasing and providing means and slidably surrounding at least a portion of the other of the first and second electrically conducting cores.

Claim 14

The ignition system of claim 10 wherein the insulating means further includes a second outer tubular insulating member connected to and surrounding at least a portion of the other of the first and second electrically conducting cores, said first outer tubular insulating member including a portion extending beyond said one electrically conducting core.

Claim 15

The ignition system of claim 10 wherein said first outer tubular insulating member telescopingly extends into said second outer tubular insulating member.

Claim 16

The ignition system of claim 10 wherein the first and second electrically conducting cores are aluminum.

Claim 17

The ignition extender of claim 10 wherein the biasing means is a compression spring.

Claim 18

The ignition system of claim 11 wherein said first and second outer tubular insulating members are made of a polytetrafluorethlene material.

Claim 19

The ignition system of claim 10 wherein the source of high energy is a standard ignition coil.

Claim 20

The ignition system of claim 10 wherein the igniter is a spark plug.

Claim 21

The ignition system of claim 10 wherein the shield is in frictional contact with the cover and the engine.

Claim 22

The ignition system of claim 10 wherein the shield is a metallic material.

Claim 23

The ignition extender of claim 10 wherein the providing means is a compression spring.

Claim 24

An insulated ignition extender adapted for use in an engine to connect between an igniter and a source of high energy, comprising: a first electrically conducting core adapted to contact one of the igniter and the source of high energy and having a first outer tubular insulating member fixedly attached thereto; a second electrically conducting core adapted to contact the other of the igniter and the source of high energy and having a second outer tubular insulating member fixedly attached thereto; one of said outer tubular insulating members being axially movable with respect to the other member to provide a variable length extender; means for axially biasing apart the first and second electrically conducting cores and for providing a connection between the first and second electrically conducting cores so that electrical energy passes therethrough; and one of said first and second outer tubular insulating member being telescopingly slidingly extending into the other one of the first and second outer tubular insulating member so that substantially all of the electrical energy passing therethrough is transmitted from the source of high energy to the igniter.

Claim 25

An insulated ignition extender adapted for use in an engine to connect between an igniter and a source of high energy, comprising: a first electrically conducting core adapted to contact one of the igniter and the source of high energy and having a first outer tubular insulating member fixedly attached thereto; a second electrically conducting core adapted to contact the other of the igniter and the source of high energy and having a second outer tubular insulating member fixedly attached thereto; one of said outer tubular insulating members being axially movable with respect to the other member to provide a variable length extender; means for axially biasing apart the first and second electrically conducting cores and for providing a connection between the first and second electrically conducting cores so that electrical energy passes therethrough; and one of said first and second outer tubular insulating member being telescopingly slidingly extending into the other one of the first and second outer tubular insulating member so that substantially all of the electrical energy passing therethrough is transmitted from the source of high energy to the igniter.