US4540502A
Expired / Lapsed
US
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Heat storage material
Assignee: Mitsubishi Electric Corp
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Filing: 1983-10-24
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Granted: 1985-09-10
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Expires: 2003-10-24
Abstract
Abstract A heat storage material which comprises CaCl2.6H2O, as a main component, containing at least one anhydride selected from the group consisting of an anhydrous bromide and an anhydrous nitrate.
Inventors
- 👤 Hiroshi Kimura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 11:19
CPC Classifications
C; C09; C09K; C09K5/00; C09K5/02; C09K5/06; C09K5/063; Y; Y10; Y10S; Y10S165/00; Y10S165/902
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
124 words
A heat storage material which comprises CaCl 2 .6H 2 O, as a main component, an amount effective to decrease the melting point thereof of at least one anhydrous component selected from the group consisting of NH 4 Br and KNO 3 and mixtures thereof with at least one of KBr and NH 4 NO 3 , and up to an amount not exceeding the saturation point of the anhydrous NH 4 Br or KNO 3 in the liquefied heat storage material at 30° C. and not exceeding a concentration of 10 percent by weight, and 0 to 10% of at least one hydrate selected from the group consisting of a hydrate of a chloride other than of calcium, a bromide and a nitrate.
Claim 2
Dependent Claim
124 words
A heat storage material which comprises CaCl 2 .6H 2 O, as a main component, an amount effective to decrease the melting point thereof of at least one anhydrous component selected from the group consisting of NH 4 Br and KNO 3 and mixtures thereof with at least one of KBr and NH 4 NO 3 , and up to an amount not exceeding the saturation point of the anhydrous NH 4 Br or KNO 3 in the liquefied heat storage material at 30° C. and not exceeding a concentration of 10 percent by weight, and 0 to 10% of at least one hydrate selected from the group consisting of a hydrate of a chloride other than of calcium, a bromide and a nitrate.
Claim 3
Dependent Claim
15 words
The storage material according to claim 1, wherein the anhydrous component includes NH 4 Br.
Claim 4
Dependent Claim
16 words
The heat storage material according to claim 1, wherein the anhydrous component includes KNO 3 .
Claim 5
Dependent Claim
21 words
The heat storage material according to claim 2, wherein the anhydrous component includes NH 4 NO 3 or KNO 3 .
Claim 6
Dependent Claim
123 words
A heat storage material which comprises CaCl 2 .6H 2 O, as a main component, containing (a) an anhydrous bromide, (b) an anhydrous nitrate and (c) at least one hydrate selected from the group consisting of a hydrate of a chloride of other than calcium, a bromide and a nitrate, the total of (a) and (b) being an amount effective to decrease the melting point of CaCl 2 .6H 2 O and up to an amount not exceeding the saturation point of the same in the liquefied heat storage material at 30° C. and not exceeding a concentration of up to 10% by weight, and the amount (c) being effective to diminish supercooling but not more than 10% by weight of the composition.
Claim 7
Dependent Claim
123 words
A heat storage material which comprises CaCl 2 .6H 2 O, as a main component, containing (a) an anhydrous bromide, (b) an anhydrous nitrate and (c) at least one hydrate selected from the group consisting of a hydrate of a chloride of other than calcium, a bromide and a nitrate, the total of (a) and (b) being an amount effective to decrease the melting point of CaCl 2 .6H 2 O and up to an amount not exceeding the saturation point of the same in the liquefied heat storage material at 30° C. and not exceeding a concentration of up to 10% by weight, and the amount (c) being effective to diminish supercooling but not more than 10% by weight of the composition.
Claim 8
Dependent Claim
18 words
The heat storage material according to claim 5, wherein the anhydrous bromide is NH 4 Br or KBr.
Claim 9
Dependent Claim
21 words
The heat storage material according to claim 5, wherein the anhydrous nitrate is NH 4 NO 3 or KNO 3 .
Claim 10
Dependent Claim
20 words
The heat storage material according to claim 5, wherein the hydrate of a chloride is MgCl 2 .6H 2 O.
Claim 11
Dependent Claim
36 words
The heat storage material according to claim 5, wherein the hydrate of a bromide is at least one hydrate selected from the group consisting of CaBr 2 .6H 2 O and MgBr 2 .6H 2 O.
Claim 12
Dependent Claim
40 words
The heat storage material according to claim 5, wherein the hydrate of a nitrate is at least one hydrate selected from the group consisting of Ca(NO 3 ) 2 .4H 2 O and Mg(NO 3 ) 2 .6H 2 O.
Claim 13
Dependent Claim
14 words
The heat storage material according to claim 3 wherein the anhydrous component includes KBr.
Claim 14
Dependent Claim
17 words
The heat storage material according to claim 1 which includes a nucleating amount of a nucleating agent.
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) | 1988-09-09 | 1989-03-11 | 1989-09-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-09-09 | 1993-03-11 | 1993-09-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-09-09 | 1997-03-11 | 1997-09-10 | $7700.00 | Window Closed / Lapsed |