The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 15, 1994
Filed:
Sep. 03, 1993
David A Condit, Avon, CT (US);
H Harvey Michels, West Hartford, CT (US);
Thomas J Garosshen, Andover, CT (US);
Warren R Clough, Cicero, NY (US);
Other;
Abstract
A method and apparatus for testing refrigerant of one type for contamination by refrigerant of another type as would be the case if an air conditioning or refrigeration system charged with a non-chlorofluorocarbon refrigerant received a replenishment charge of a chlorofluorocarbon refrigerant. A sample of the suspected refrigerant mix is exposed to a reagent that will decompose the contaminant refrigerant but not the refrigerant that is proper for the system. The sample is then tested for a product of the decomposition. If the product is present, then one can conclude that the contaminant refrigerant is present.