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:
Jun. 07, 2011
Filed:
Mar. 30, 2007
Haruo Nakata, Sakai, JP;
Takashi Shimamura, Sakai, JP;
Haruo Nakata, Sakai, JP;
Takashi Shimamura, Sakai, JP;
Daikin Industries, Ltd., Osaka, JP;
Abstract
A guide tapered surfaceof a pipe coupling porthas a small diameter portionguiding to a distal end portionof a bite type sleeveto bite into a coupling pipeand a large diameter portionsealing a tapered outer circumferential surfaceof the bite type sleeveby making close contact with the tapered outer circumferential surfaceof the bite type sleeve. A tilt angle αof the small diameter portionrelative to a central axis of the guide tapered surfaceis greater than a tilt angle αof the large diameter portionrelative to the central axis. Therefore, even when a distal end portion of the coupling pipeis not inserted up to an innermost portion of the pipe coupling port, excellent sealing performance is obtained in a portion coupled to the coupling pipe.