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. 21, 1997
Filed:
Jul. 23, 1996
John J Byrne, Dublin, OH (US);
Michael E Shows, Hilliard, OH (US);
Robert Yost, Wilmington, DE (US);
Integral Sciences Incorporated, Columbus, OH (US);
Abstract
The present invention includes a method for changing lubricant types in closed cooling systems such as refrigeration, air-conditioning machinery, and the like. The present invention is also applicable to heat pumps. The method of the present invention may be used on such systems that comprise one or more compressors, one or more evaporators, and one or more condensers. The method of the present invention allows the original compressor lubricant to be drained and replaced with a new lubricant; typically a lubricant of a different type than the original lubricant. Through use of the method of the present invention, all accessible points in the system (i.e., the compressor, the high side oil separator, if so equipped, and the accumulator, if so equipped, etc.) may be drained of the original lubricant and recharged with a new lubricant. After this is done, the original lubricant may still remain in the evaporator, condenser, and/or associated fluid lines.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile