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:
Feb. 16, 1993
Filed:
Jun. 22, 1992
John P Hancock, Indianapolis, IN (US);
Ralph A McClelland, Indianapolis, IN (US);
K-Whit Tools, Inc., Fishers, IN (US);
Abstract
A device is disclosed for recovering refrigerant from a mechanical refrigeration system having a high pressure port through which refrigerant can be withdrawn from the system, and a low pressure port through which refrigerant can be withdrawn from the system. The purging device includes a refrigerant storage tank having a first entry port and second entry port. A first refrigerant conduit extends between the high pressure port of the mechanical refrigeration system and the first entry port of the refrigerant storage tank. A second refrigerant conduit extends between the low pressure port of the mechanical refrigeration system and the second entry portion of the refrigerant storage tank. A selectively actuable first flow control arrangement is disposed in the second refrigerant conduit for controlling the flow of refrigerant, to permit the refrigerant to flow from the refrigerant storage tank into the mechanical refrigeration system when the device is in a liquid refrigerant recovery mode of operation, and to permit the refrigerant to flow from the mechanical refrigeration system into the refrigerant storage tank when the device is in a gaseous refrigerant recovery mode of operation.