Patent US5714083A successfully refreshed from Google Patents.
US5714083A
Expired / Lapsed
US
⏱️ 0.0 years remaining
A non-flammable refrigerant fluid containing hexa fluoropropane and hydrocarbons
Assignee: TACIP INTERNATIONAL Inc
•
Filing: 1996-01-11
•
Granted: 1998-02-03
•
Expires: 2016-01-11
Abstract
Abstract A refrigerant fluid which is non-flammable, non-toxic, non-corrosive, ozone-safe and odorless comprising mixtures of: (1) one or more hydrocarbons having C-1 through C-6 molecular make-up; (2) fluorocarbon 1216, having the CAS designation 116-15-4; and (3) a friction modifier made of severely hydrotreated light naphthenic distillate (petro.) having the CAS designation 64742-53-6.
Inventors
- 👤 Donald E. Turner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 15:58
CPC Classifications
C; C09; C09K; C09K5/00; C09K5/02; C09K5/04; C09K5/041; C09K5/044; C09K5/045; C09K2205/00; C09K2205/10; C09K2205/12; C09K2205/126
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
112 words
A refrigerant fluid mixture comprising: (a) a hydrocarbon blend comprising at least two hydrocarbons having C-1 through C-6 molecular makeup selected from the group consisting of methane, ethane, hexane, propane, iso-butane, n-butane, and iso-pentane, said blend present in said mixture in a range of 1% to 6% of the weight of said mixture; (b) fluorocarbon 1216, also known as hexafluoropropene, said fluorocarbon present in said mixture in a range in the aggregate of 91% to 98.8% of the weight of said mixture; and (c) a lubricant consisting essentially of a severely hydrotreated light naphthenic distillate present in said mixture in a range of 0.2% to 5% of the weight of said mixture.
Claim 2
Dependent Claim
112 words
A refrigerant fluid mixture comprising: (a) a hydrocarbon blend comprising at least two hydrocarbons having C-1 through C-6 molecular makeup selected from the group consisting of methane, ethane, hexane, propane, iso-butane, n-butane, and iso-pentane, said blend present in said mixture in a range of 1% to 6% of the weight of said mixture; (b) fluorocarbon 1216, also known as hexafluoropropene, said fluorocarbon present in said mixture in a range in the aggregate of 91% to 98.8% of the weight of said mixture; and (c) a lubricant consisting essentially of a severely hydrotreated light naphthenic distillate present in said mixture in a range of 0.2% to 5% of the weight of said mixture.
Claim 3
Dependent Claim
29 words
A refrigerant fluid as described in claim 1 wherein the hydrocarbon blend contains by liquid volume more than fifty percent (50%) propane and more than thirty-five percent (35%) n-butane.
Claim 4
Dependent Claim
22 words
A refrigerant fluid as described in claim 2 wherein the hydrocarbon blend contains by liquid volume more than eight percent (8%) isobutane.
Claim 5
Dependent Claim
22 words
A refrigerant fluid as described in claim 2 wherein the hydrocarbon blend contains by liquid volume more than one percent (1%) ethane.
Claim 6
Dependent Claim
22 words
A refrigerant fluid as described in claim 3 wherein the hydrocarbon blend contains by liquid volume more than one percent (1%) ethane.
Claim 7
Dependent Claim
20 words
A refrigerant fluid as described in claim 5 wherein the hydrocarbon blend contains in some amounts methane, hexane and isopentane.
Claim 8
Dependent Claim
29 words
A refrigerant fluid as described in claim 1 wherein the hydrocarbon blend contains by liquid volume more than fifty percent (50%) n-butane and more than thirty-five percent (35%) propane.
Claim 9
Dependent Claim
22 words
A refrigerant fluid as described in claim 7 wherein the hydrocarbon blend contains by liquid volume more than eight percent (8%) isobutane.
Claim 10
Dependent Claim
22 words
A refrigerant fluid as described in claim 7 wherein the hydrocarbon blend contains by liquid volume more than one percent (1%) ethane.
Claim 11
Dependent Claim
22 words
A refrigerant fluid as described in claim 8 wherein the hydrocarbon blend contains by liquid volume more than one percent (1%) ethane.
Claim 12
Dependent Claim
20 words
A refrigerant fluid as described in claim 10 wherein the hydrocarbon blend contains in some amounts methane, hexane and isopentane.
Claim 13
Dependent Claim
31 words
A refrigerant fluid as described in claim 1 wherein the hydrocarbon blend contains propane and n-butane in combination representing at least eighty percent (80%) of the liquid volume of said blend.
Claim 14
Dependent Claim
21 words
A refrigerant as described in claim 12 wherein the hydrocarbon blend contains by liquid volume more than eight percent (8%) isobutane.
Claim 15
Dependent Claim
21 words
A refrigerant as described in claim 12 wherein the hydrocarbon blend contains by liquid volume more than one percent (1%) ethane.
Claim 16
Dependent Claim
22 words
A refrigerant fluid as described in claim 13 wherein the hydrocarbon blend contains by liquid volume more than one percent (1%) ethane.
Claim 17
Dependent Claim
20 words
A refrigerant fluid as described in claim 15 wherein the hydrocarbon blend contains in some amounts methane, hexane and isopentane.
References Cited (Backward Citations)
US5254280A
Cited
GB2228739A
Cited
JPH0393888A
Cited
US5104560A
Cited
JPH04288452A
Cited
US5372737A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2001-02-02 | 2001-08-04 | 2002-02-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-02-02 | 2005-08-04 | 2006-02-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-02-02 | 2009-08-04 | 2010-02-03 | $7700.00 | Window Closed / Lapsed |