US4303536A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Nonazeotropic refrigerant composition containing monachlorodifluoromethane, and method of use
Assignee: Honeywell International Inc
•
Filing: 1980-12-29
•
Granted: 1981-12-01
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Expires: 2000-12-29
Abstract
Abstract A novel nonazeotropic mixture containing R-22 and either R-124 or R-152a. This mixture has an improved efficiency in cooling and heating applications. Also provided is a method for producing refrigeration and a method for producing heating using this mixture.
Inventors
- 👤 Sabatino R. Orfeo
- 👤 Robert A. Allen
- 👤 Leonard I. Stiel
- 👤 John W. Pelava
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 15:53
CPC Classifications
C; C09; C09K; C09K5/00; C09K5/02; C09K5/04; C09K5/041; C09K5/044; C09K5/045; C09K2205/00; C09K2205/10; C09K2205/12; C09K2205/122; C09K2205/34
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
43 words
A nonazeotropic refrigerant composition comprising from about 99 to 1 wt. % of monochlorodifluoromethane, as a first component, and from about 1 to 99 wt. % of a polar fluorocarbon selected from the group consisting of 2-chloro-1,1,1,2-tetrafluoroethane and 1,1-difluoroethane, as a second component.
Claim 2
Dependent Claim
43 words
A nonazeotropic refrigerant composition comprising from about 99 to 1 wt. % of monochlorodifluoromethane, as a first component, and from about 1 to 99 wt. % of a polar fluorocarbon selected from the group consisting of 2-chloro-1,1,1,2-tetrafluoroethane and 1,1-difluoroethane, as a second component.
Claim 3
Dependent Claim
11 words
The composition of claim 1 wherein said second component is 2-chloro-1,1,1,2-tetrafluoroethane.
Claim 4
Dependent Claim
11 words
The composition of claim 1 wherein said second component is 1,1-difluoroethane.
Claim 5
Dependent Claim
37 words
The composition of claim 2 wherein monochlorodifluoromethane is present in an amount ranging from about 50 to 30 wt. % and said second component is present in an amount ranging from about 50 to 70 wt. %.
Claim 6
Dependent Claim
20 words
The composition of claim 3 wherein monochlorodifluoromethane and said second component are present in amounts that produce a nonflammable composition.
Claim 7
Dependent Claim
14 words
The composition of claim 1 containing a high weight fraction of said first component.
Claim 8
Dependent Claim
35 words
The composition of claim 6 wherein said first component is present in an amount ranging from about 90-70 wt. % and said second component is present in an amount ranging from about 10-30 wt. %.
Claim 9
Dependent Claim
29 words
A method for producing refrigeration which comprises condensing the refrigerant composition of claim 1 and thereafter evaporating said refrigerant composition in the vicinity of a body to be cooled.
Claim 10
Dependent Claim
29 words
A method for producing heating which comprises condensing the refrigerant composition of claim 1 in the vicinity of a body to be heated and thereafter evaporating said refrigerant composition.
Claim 11
Dependent Claim
22 words
The composition of claim 1 containing from about 1 wt. % to less than about 60 wt. % of said first component.
References Cited (Backward Citations)
US3336763A
Cited
US3607755A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-11-30 | 1985-06-01 | 1985-12-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-11-30 | 1989-06-01 | 1989-12-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-11-30 | 1993-06-01 | 1993-12-01 | $7700.00 | Window Closed / Lapsed |