US4101436A
Expired / Lapsed
US
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Constant boiling mixtures of 1-chloro-2,2,2-trifluoroethane and hydrocarbons
Assignee: Honeywell International Inc
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Filing: 1976-12-21
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Granted: 1978-07-18
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Expires: 1996-12-21
Abstract
Abstract Constant boiling mixtures of 1-chloro-2,2,2-trifluoroethane and certain hydrocarbons are useful as refrigerants, heat transfer media, gaseous dielectrics, expansion agents, aerosol propellants, working fluids in a power cycle and solvents.
Inventors
- 👤 Kevin P. Murphy
- 👤 Richard F. Stahl
- 👤 Sabatino R. Orfeo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 07:10
CPC Classifications
C; C09; C09K; C09K5/00; C09K5/02; C09K5/04; C09K5/041; C09K5/044; C09K5/045; C09K3/00; C09K3/30; C09K2205/00; C09K2205/10; C09K2205/12; C09K2205/122; C09K2205/128
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
22 words
Constant boiling mixtures consisting essentially of 1-chloro-2,2,2-trifluoroethane and a hydrocarbon selected from the group consisting of isopentane, n-pentane, n-butane, 2,2-dimethylpropane and isobutane.
Claim 2
Dependent Claim
22 words
Constant boiling mixtures consisting essentially of 1-chloro-2,2,2-trifluoroethane and a hydrocarbon selected from the group consisting of isopentane, n-pentane, n-butane, 2,2-dimethylpropane and isobutane.
Claim 3
Dependent Claim
23 words
Constant boiling mixtures according to claim 1 in which the hydrocarbon is isopentane and which boil at about 4° C. at 760 mm.
Claim 4
Dependent Claim
23 words
Constant boiling mixtures according to claim 1 in which the hydrocarbon is n-pentane and which boil at about 5° C. at 760 mm.
Claim 5
Dependent Claim
23 words
Constant boiling mixtures according to claim 1 in which the hydrocarbon is n-butane and which boil at about =5° C. at 760 mm.
Claim 6
Dependent Claim
23 words
Constant boiling mixtures according to claim 1 in which the hydrocarbon is 2,2-dimethylpropane and which boil at about 1° C at 760 mm.
Claim 7
Dependent Claim
22 words
Constant boiling mixtures according to claim 1 in which the hydrocarbon is isobutane and which boil under -13° C. at 760 mm.
Claim 8
Dependent Claim
31 words
The process of producing refrigeration which comprises condensing a constant boiling mixture as described in claim 1 and thereafter evaporating said mixture in the vicinity of a body to be cooled.
Claim 9
Dependent Claim
20 words
The process of claim 7 in which the constant boiling mixture condensed and evaporated is as defined in claim 2.
Claim 10
Dependent Claim
20 words
The process of claim 7 in which the constant boiling mixture condensed and evaporated is as defined in claim 3.
Claim 11
Dependent Claim
20 words
The process of claim 7 in which the constant boiling mixture condensed and evaporated is as defined in claim 4.
Claim 12
Dependent Claim
20 words
The process of claim 7 in which the constant boiling mixture condensed and evaporated is as defined in claim 5.
Claim 13
Dependent Claim
20 words
The process of claim 7 in which the constant boiling mixture condensed and evaporated is as defined in claim 6.
References Cited (Backward Citations)
US3583921A
Cited
US3733273A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-07-17 | 1982-01-16 | 1982-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-07-17 | 1986-01-16 | 1986-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-07-17 | 1990-01-16 | 1990-07-18 | $7700.00 | Window Closed / Lapsed |