Back to results
US 6,258,292 B1Granted
Alternative refrigerant including hexafluoropropylene
OwnerDonald E. Turnerinventor
Life of this patent
Estimating the term…
Abstract
An alternative refrigerant to chlorofluorocarbons and their substitutes such as R-12 and R-134a and for R-22, and demonstrating improved performance as a refrigerant than those substituted for while having the properties of being nontoxic, non-corrosive, nonflammable and safer to the environment including a blend of one or more of fluorocarbons known in the industry as R-1216 and R-22.
Claims3
A method for operating a refrigeration unit adapted to utilize refrigerant R-22 as the refrigerant medium comprising substituting for R-22 a refrigerant composition consisting essentially of:
- (i) chlorodifluoromethane in an amount from about 70% to about 95% by weight;
- and
- (ii) the balance of hexafluoropropylene.
Dependencies are inferred from the claim text.