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US 6,386,893 B2Granted
Spark plug boot assembly and heat shield
OwnerRex Reum, Vaughn V. Barnesinventors
Life of this patent
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Abstract
A spark plug boot assembly has a boot with one end for receiving an ignition cable and another end for receiving a spark plug. A heat barrier surrounds the boot and includes an outer wall and an inner wall defining a cavity, and a thermal insulator is disposed within the cavity. Contemplated spark plug boot assemblies may further include a silicone coating between the inner wall of the heat barrier and the outer surface of the boot to reduce potential chafing of the boot.
Claims15
A spark plug boot assembly, comprising:
- a boot having a first end for receiving an ignition cable, a second end for receiving a spark plug, and an outer boot surface;
- a heat barrier having an outer wall and an inner wall, wherein the outer wall and the inner wall are coupled together to define a cavity, and wherein the heat barrier surrounds at least part of the boot such that at least part of the inner wall snugly engages with the outer boot surface;
- and
- a thermal insulator disposed in the cavity.
1 more element
Dependencies are inferred from the claim text.