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:
Dec. 29, 1998
Filed:
Mar. 12, 1997
Gary Westermeyer, Bluffs, IL (US);
Sean M Fink, Springfield, IL (US);
AC&R Components, Inc., Chatham, IL (US);
Abstract
A sight glass assembly for visually indicating the presence of moisture, oil or an acid in a refrigerant flow of a refrigeration or air conditioning system and a method of manufacture thereof is disclosed. The sight glass assembly includes an indicator cap attached to an in-line connector body. The indicator cap includes a piece of transparent sight glass. The sight glass is attached to the indicator cap and to a retaining tube that holds an indicator material. In a preferred embodiment, the sight glass is attached to the indicator cap and to the retaining tube by at least partially melting the sight glass so that it bonds with the indicator cap and, when the sight glass is in at least a partially molten condition, pressing the retaining tube into an inside surface of the sight glass to fixedly attach the retaining tube to the sight glass.