US4487036A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hermetically circulating, absorption type refrigerator
Assignee: Hitachi Ltd
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Filing: 1983-09-14
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Granted: 1984-12-11
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Expires: 2003-09-14
Abstract
Abstract In a hermetically circulating absorption type refrigerator including a regenerator, a condenser, an evaporator, an absorber and a heat exchanger, the regenerator has an absorbing solution heating tube flux provided between tube plates. The tube plates are encased within a shell of the regenerator. Non-soluble electrodes are arranged between each of the tube plates and the shell. Then, an anti-corrosive current is made to flow through at least one of an end portion of the heating tube, the tube plates and the shell to thereby enhance the anti-corrosion effect together with an anti-corrosive agent or inhibitor.
Inventors
- 👤 Masahiko Itoh
- 👤 Heihatiro Midorikawa
- 👤 Akira Minato
- 👤 Kenzi Machizawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 10:58
CPC Classifications
F; F25; F25B; F25B33/00; F25B2333/00; F25B2333/003
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
87 words
In a hermetically circulating, absorption type refrigerator including a regenerator, a condenser, an evaporator, an absorber and a heat exchanger, said refrigerator characterized in that said regenerator has an absorbing solution heating tube flux provided between two tube plates encased within a shell; non-soluble electrodes are disposed between each of said tube plates and said shell; and an anti-corrosive current is made to flow through at least one of an end portion of the heating tube of said heating tube flux, said tube plates and said shell.
Claim 2
Dependent Claim
87 words
In a hermetically circulating, absorption type refrigerator including a regenerator, a condenser, an evaporator, an absorber and a heat exchanger, said refrigerator characterized in that said regenerator has an absorbing solution heating tube flux provided between two tube plates encased within a shell; non-soluble electrodes are disposed between each of said tube plates and said shell; and an anti-corrosive current is made to flow through at least one of an end portion of the heating tube of said heating tube flux, said tube plates and said shell.
Claim 3
Dependent Claim
28 words
The refrigerator of claim 1, in which said non-soluble electrodes are used as cathodes and said shell and said tube plates of said regenerator are used as anodes.
Claim 4
Dependent Claim
28 words
The refrigerator of claim 1, in which said non-soluble electrodes are used as anodes and said shell and said tube plates of said regenerator are used as cathodes.
Claim 5
Dependent Claim
15 words
The refrigerator of claim 2, in which said refrigerator is of a triple effect type.
Claim 6
Dependent Claim
15 words
The refrigerator of claim 3, in which said refrigerator is of a triple effect type.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-12-11 | 1988-06-11 | 1988-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-12-11 | 1992-06-11 | 1992-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-12-11 | 1996-06-11 | 1996-12-11 | $7700.00 | Window Closed / Lapsed |