Patent ID: 8220989

Claim:
A thermal conductivity measurement apparatus comprising: a heated disc and a cooled disc; an insulating ring, said ring includes an inner diameter and an outer diameter; said ring resides between and engages said heated disc and said cooled disc; a first insulating disc and a second insulating disc; said first insulating disc includes a first inner surface and a second outer surface; said second insulating disc includes a first inner surface and a second outer surface; said first inner surface of said first insulating disc affixed to said heated disc and said first inner surface of said second insulating disc affixed to said cooled disc; said heated disc, said cooled disc and said inner diameter of said ring forming a specimen test volume; a clamp; and, said clamp operating between said second outer surface of said first insulating disc and said second outer surface of said second insulating disc securing said heated disc, said cooled disc and said insulating ring together.