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:
Sep. 05, 1989
Filed:
Jul. 06, 1988
Phillip Morgan, Memphis, TN (US);
David Zellers, Southaven, MS (US);
Other;
Abstract
An apparatus and method to aid in detecting refrigerant leaks in a refrigerant system of the type including an air-tight system vessel, refrigerant within the system vessel, a closed loop of system piping with at least a portion thereof extending through the system vessel, and heat transfer medium flowing through the system piping. The apparatus includes an apparatus vessel for being coupled to the system piping; pump structure for pumping the heat transfer medium from the system piping, through the apparatus vessel, and back to the system piping; structure for heating the heat transfer medium within the apparatus vessel to transfer heat to the refrigerant within the system vessel when the heat transfer medium is pumped from the apparatus vessel back to the system piping and to cause the pressure of the refrigerant within the system vessel to increase; and control structure for controlling the temperature of the heat transfer medium and for controlling the increase in pressure of the refrigerant within the system vessel.