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.

Date of Patent:
Aug. 15, 1995

Filed:

Aug. 29, 1994
Applicant:
Inventor:

B William Cooper, Lloyd Harbor, NY (US);

Assignee:

Spectronics Corporation, Wesbury, NY (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01M / ;
U.S. Cl.
CPC ...
73 407 ;
Abstract

A method of introducing a leak detection additive into a closed refrigeration system by a substrate containing the additive. A predetermined amount of the additive is implanted on and absorbed into a host swatch of substrate material which is capable of absorbing and releasing the leak detection additive, but which does not react with refrigerant or system lubricant. The swatch is installed in a desiccant bag, which is then installed in a dehydrator of the refrigeration system. The refrigeration system is assembled, charged and operated, by which the refrigerant and system lubricant flowing through the desiccant bag mixes the additive with the refrigerant and system lubricant. In alternative embodiments, the substrate is constructed to be used as a filter in various components of the refrigeration system.


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