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. 28, 1997
Filed:
Jul. 22, 1996
Applicant:
Inventor:
Richard C Cavestri, Columbus, OH (US);
Assignee:
Bright Solutions, Inc., Troy, MI (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01H / ;
U.S. Cl.
CPC ...
73 407 ;
Abstract
A leak detecting dye for use in heating, ventilating, air conditioning, or refrigeration systems employing dyes such as naphthalimide, perylene, coumarin, anthracene, phenanthracene, and thioxanthane. The dye is adsorbed onto a non-absorbent carrier which is then adapted for inclusion into various components of the system such as a filter drier, or a desiccant container which may be inserted into appropriate locations within the system.