Title: Cryogenic insulating structure

Abstract: A cryogenic heat insulating structure comprises: a wall coated with a plurality of superposed rigid foam layers each of the layers having a skin and each layer containing fibers oriented parallel to the wall.

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Inventors: Ashida, Kaneyoshi (Chofu, JA)
Ohtani, Masaaki (Kawasaki, JA)
Ichii, Makoto (Yokohama, JA)
Kobayashi, Tatsuhiko (Kawasaki, JA)

Application Number: 612853
Filing Date: 1975-09-12
Publication_date: 1977-08-23
Assignee: Mitsubishi Chemical Industries Ltd. (Tokyo, JA)
Primary Class(es): 428/113 220/62.19, 220/560.15, 427/426, 428/298.1, 428/310.5, 428/316.6, 428/318.8
Other Classes:
US Patent Ref:

3091551	May, 1963	Robertson	427/426.
3172072	Mar, 1965	Willy	428/315.
3322868	May, 1967	Kruse et al.	428/295.
3345245	Oct, 1967	Hanusa	428/315.
3382302	May, 1968	Marzocchi	428/425.
3429085	Feb, 1969	Stillma, Jr.	428/315.
3565746	Feb, 1971	Stevens	428/315.
3586649	Jun, 1971	Cobbledick	428/315.
3655086	Apr, 1972	Trenner	220/9.
3749594	Jul, 1973	Bibb	427/244.
3753848	Aug, 1973	Bennett	428/322.
3895159	Jul, 1975	Yoshimura	220/9.
3896961	Jul, 1975	Guilheim et al.	220/9.
3916060	Oct, 1975	Fish et al.	427/426.

Other Refs:
Primary Examiner: Van Balen, William J.
Assistant Examiner:
Attorney: Oblon, Fisher, Spivak, McClelland & Maier