US4462214A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cryostat
Assignee: Toshiba Corp
•
Filing: 1982-05-17
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Granted: 1984-07-31
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Expires: 2002-05-17
Abstract
Abstract A cryostat comprises an inner tank to be contacted with a cryogenic fluid and an outer tank surrounding the inner tank. The inner tank is formed of fiber-glass reinforced vinyl polyester resin.
Inventors
- 👤 Daisuke Ito
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 04:20
CPC Classifications
F; F17; F17C; F17C3/00; F17C3/02; F17C3/08; F17C3/085; F17C2201/00; F17C2201/01; F17C2201/0104; F17C2201/0119; F17C2203/00; F17C2203/03; F17C2203/0304; F17C2203/0345; F17C2203/035; F17C2203/06; F17C2203/0634; F17C2203/0658; F17C2203/0663; F17C2203/068; F17C2203/0687; F17C2221/00; F17C2221/01; F17C2221/014; F17C2221/016; F17C2221/017; F17C2223/00; F17C2223/01; F17C2223/0146; F17C2223/0153; F17C2223/0161; F17C2270/00; F17C2270/05; F17C2270/0509
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
54 words
A cryostat for storing cryogenic fluid, comprising: an inner tank to be in contact with a crogenic fluid and formed of fiber-glass reinforced vinyl polyester resin, wherein said vinyl polyester resin is formed from monomers represented by the formula: ##STR2## wherein n is 1 to 4; and an outer tank surrounding said inner tank.
Claim 2
Dependent Claim
54 words
A cryostat for storing cryogenic fluid, comprising: an inner tank to be in contact with a crogenic fluid and formed of fiber-glass reinforced vinyl polyester resin, wherein said vinyl polyester resin is formed from monomers represented by the formula: ##STR2## wherein n is 1 to 4; and an outer tank surrounding said inner tank.
Claim 3
Dependent Claim
19 words
The cryostat according to claim 1, wherein said fiber-glass reinforced resin contains 30% to 50% by weight of glass.
Claim 4
Dependent Claim
22 words
The cryostat according to any of claims 1 or 2, wherein said outer tank is formed of fiber-glass reinforced vinyl polyester resin.
Claim 5
Dependent Claim
27 words
The cryostat according to claim 1, wherein said vinyl polyester resin forming said outer tank is represented by the formula: ##STR3## where n is 1 to 4.
Claim 6
Dependent Claim
72 words
A cryogenic apparatus, comprising: a cryostat composed of an inner tank formed of fiber-glass reinforced vinyl polyester resin, wherein said vinyl polyester resin is formed from monomers represented by the formula: ##STR4## wherein n is 1 to 4, and an outer tank surround said inner tank; a cryogenic fluid contained in the inner tank of said cryostat; a cryogenic device immersed in said cryogenic fluid; and means for operating said cryogenic device.
Claim 7
Dependent Claim
72 words
A cryogenic apparatus, comprising: a cryostat composed of an inner tank formed of fiber-glass reinforced vinyl polyester resin, wherein said vinyl polyester resin is formed from monomers represented by the formula: ##STR4## wherein n is 1 to 4, and an outer tank surround said inner tank; a cryogenic fluid contained in the inner tank of said cryostat; a cryogenic device immersed in said cryogenic fluid; and means for operating said cryogenic device.
Claim 8
Dependent Claim
20 words
The apparatus according to claim 5, wherein said fiber-glass reinforced resin contains 30% to 50% by weight of glass content.
References Cited (Backward Citations)
US3216559A
Cited
US3606958A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-07-31 | 1988-01-30 | 1988-07-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-07-31 | 1992-01-30 | 1992-07-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-07-31 | 1996-01-30 | 1996-07-31 | $7700.00 | Window Closed / Lapsed |