US4055054A
Expired / Lapsed
US
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Constant boiling mixtures of dichloromonofluoromethane and 1-chloro-2,2,2-trifluoroethane
Assignee: Honeywell International Inc
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Filing: 1976-12-21
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Granted: 1977-10-25
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Expires: 1996-12-21
Abstract
Abstract Constant boiling mixtures of dichloromonofluoromethane and 1-chloro-2,2,2-trifluoroethane 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
2026-10-28 23:21
CPC Classifications
F; F01; F01K; F01K25/00; F01K25/08; C; C09; C09K; C09K3/00; C09K3/30; C09K5/00; C09K5/02; C09K5/04; C09K5/041; C09K5/044; C09K2205/00; C09K2205/32
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
18 words
Constant boiling mixtures consisting essentially of about 26.2 weight % dichloromonofluoromethane and about 73.8 weight % of 1-chloro-2,2,2-trifluoroethane.
Claim 2
Dependent Claim
18 words
Constant boiling mixtures consisting essentially of about 26.2 weight % dichloromonofluoromethane and about 73.8 weight % of 1-chloro-2,2,2-trifluoroethane.
Claim 3
Dependent Claim
16 words
Constant boiling mixtures according to claim 1 which boil at about 5.5° C. at 760 mm.
Claim 4
Dependent Claim
31 words
The process of producing refrigeration which comprise 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 5
Dependent Claim
24 words
The process of producing refrigeration according to claim 3 in which the constant boiling mixture condensed and evaporated is as defined in claim 2.
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) | 1980-10-24 | 1981-04-25 | 1981-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-10-24 | 1985-04-25 | 1985-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-10-24 | 1989-04-25 | 1989-10-25 | $7700.00 | Window Closed / Lapsed |