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US 4,069,284 AGranted
Anti-vibration heat-insulation structure and a process for production thereof
AssigneeToyota Jidosha Kogyo Kabushiki Kaisha
InventorsItaru Niimi, Yasuhisa Kaneko, Fumiyoshi Noda, Yuji Watanabe
Life of this patent
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Abstract
The present invention relates to an anti-vibration heat-insulation structure and a process for the production thereof characterized by filling the void in the structure to form a heat-insulation layer with silicic acid bonding agent-coated silicic acid mineral grains which swell in volume when fired at a high temperature; and then heating and thereby expanding these silicic acid mineral grains and at the same time allowing said grains to stick to one another.
Claims5
A process of manufacturing a vibration resistant heat insulator comprising,
- coating foamable silicic acid mineral grains with a bonding agent,
- charging said coated mineral grains into a space between two spaced walls,
- and heating said coated mineral grains until they are expanded and bonded together by said bonding agent which strengthens the expanded mineral grains.
Dependencies are inferred from the claim text.