Patent US3570701A successfully refreshed from Google Patents.
US3570701A
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Tank for use in storing low temperature liquefied gas
Assignee: Eneos Globe Corp
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Filing: 1968-12-03
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Granted: 1971-03-16
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Expires: 1988-12-03
Abstract
Abstract A tank for use in storing low temperature liquefied gas having a rigid outer vessel lined with a heat insulating layer and an inner vessel of a thin film construction with gently undulated camber. The peripheral dimensions of the material of the inner vessel are made relatively larger than those of the inner peripheral dimensions of the insulating layer of the outer vessel. The camber serves to relieve the hoop stress acting upon the inner vessel when it is subjected to the load resulting from the low temperature liquefied gas.
Inventors
- 👤 Katsuro Yamamoto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 02:23
CPC Classifications
F; F17; F17C; F17C3/00; F17C3/02; F17C3/022; B; B21; B21D; B21D1/00; F17C2201/00; F17C2201/01; F17C2201/0104; F17C2201/0109; F17C2201/0119; F17C2201/03; F17C2201/032; F17C2201/05; F17C2201/052; F17C2203/00; F17C2203/06; F17C2203/0602; F17C2203/0612; F17C2203/0626; F17C2203/0629; F17C2203/0634; F17C2203/0636; F17C2203/0639; F17C2203/0646; F17C2221/00; F17C2221/03; F17C2221/032; F17C2221/033; F17C2221/035; F17C2223/00; F17C2223/01; F17C2223/0146; F17C2223/0153; F17C2223/0161; F17C2223/03; F17C2223/033; Y; Y10; Y10S; Y10S220/00; Y10S220/901
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
49 words
A tank for use in storing low temperature liquefied gas as claimed in claim 1 wherein said heat insulating layer has a comparatively small modulus of elasticity relative to the modulus of elasticity of the material of the membrane vessel thereby causing said compressive bending stress to be reduced.
Claim 2
Dependent Claim
74 words
A tank for use in storing low temperature liquefied gas as claimed in claim 1 wherein said inner membrane vessel includes a cover plate, rounded shoulder portions formed between said cover plate and said sidewall of said inner membrane vessel, the deformation of said inner membrane vessel at its vertical sectional plane produced when it is subjected to the load resulting from the low temperature liquefied gas being absorbed by said rounded shoulder portions.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-03-15 | 1974-09-14 | 1975-03-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-15 | 1978-09-14 | 1979-03-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-15 | 1982-09-14 | 1983-03-16 | $7700.00 | Window Closed / Lapsed |