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:
Oct. 27, 1992
Filed:
Apr. 26, 1991
Kenneth W Manz, Paulding, OH (US);
Gary P Murray, Montpelier, OH (US);
Charles E Dull, Fort Wayne, IN (US);
SPX Corporation, Muskegon, MI (US);
Abstract
Apparatus for identifying and distinguishing between at least two different types of refrigerant includes a sample container having a fixed internal volume. Refrigerant to be tested is selectively admitted into the container in vapor phase, vapor pressure of refrigerant within the container is measured, and admission of refrigerant into the container is terminated when the vapor pressure of refrigerant contained therein reaches a preselected level. A sensor and associated electronics are coupled to the container for determining type of refrigerant vapor in the container as a function of one or more selected properties of the refrigerant, and indicating such refrigerant type to the operator.