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:
Jul. 16, 1991
Filed:
Feb. 21, 1990
William J Plzak, La Crescent, MN (US);
Brian T Sullivan, Onalaska, WI (US);
American Standard Inc., New York, NY (US);
Abstract
Thermal purge apparatus for a chiller removes air, moisture and other non-condensibles from the chiller system refrigerant by causing chiller system refrigerant vapor to condense in a purge tank as a result of its undergoing a heat exchange relationship with a second and different refrigerant employed in a discrete purge refrigeration circuit. Chiller refrigerant circulates from the chiller condenser to, through and out of the purge tank in a free-flowing circulatory manner as a result of temperature and pressure gradients which develop between the interiors of the chiller condenser and the purge tank when the purge apparatus is in operation.