Refrigerant and method of use in refrigeration systems
US6336333B1 · kind B1 · utility
13Cited by
36References
20Claims
0Family size
Inventor
Key dates
| Filing date | Feb 28, 1995 |
| Grant date | Jan 8, 2002 |
| Priority date | — |
| Expiry date | Feb 28, 2015 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF25B2400/18
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A refrigerant mixture. The mixture of propane and butane may be advantageously used as a substitute for R-12, thus eliminating the use of ozone depleting R-12 refrigerant. Ideally, the mixture is comprised of approximately 50% propane and 50% butane by liquid volume. Alternately, the mixture may contain up to about 75% of either propane or butane. A refrigeration process utilizing the mixture is also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.