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:
Aug. 07, 1984
Filed:
Oct. 27, 1980
Joseph Ergun, Itasca, IL (US);
Maremont Corporation, Carol Stream, IL (US);
Abstract
A coupling of the type including a flexible tube, an interiorly threaded nut member apertured to receive the tube, a cooperating exteriorly threaded nipple member, a pair of O-ring seals, and a separate tube-gripping member. The tube-gripping member includes an annular wall portion having an annular O-ring engaging end surface and a plurality of annularly spaced gripping finger portions extending axially from the end of the annular portion opposite from the annular O-ring engaging end surface. The finger portions include end surfaces engaging an interior end wall surface of the nut member, exterior segmental frustoconical surfaces converging in a direction away from the end wall engaging end surfaces engaged with a nipple member interior frustoconical surface and interior tube-engaging surfaces engaging the exterior periphery of the flexible tube and deflecting the engaged portions thereof radially inwardly a predetermined extent determined by the interengagement of a nipple member annular stop surface with a cooperating annular stop surface of the nut member. The pair of O-ring seals provides two peripheral sealing areas in series between an interior surface of the nipple member and an exterior surface of the tube.