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:
Jul. 10, 2018
Filed:
Jun. 11, 2013
Applicant:
Kubota Corporation, Osaka, JP;
Inventors:
Assignee:
KUBOTA CORPORATION, Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16L 23/02 (2006.01); F16L 37/08 (2006.01); F16L 21/04 (2006.01); F16L 21/03 (2006.01); F16L 23/024 (2006.01); F16L 23/032 (2006.01); F16L 21/08 (2006.01); F16K 3/30 (2006.01); F16J 15/02 (2006.01); F16K 27/00 (2006.01); F16L 37/084 (2006.01); F16L 23/16 (2006.01); F16L 23/22 (2006.01);
U.S. Cl.
CPC ...
F16L 21/03 (2013.01); F16J 15/022 (2013.01); F16J 15/028 (2013.01); F16K 3/30 (2013.01); F16K 27/00 (2013.01); F16L 21/04 (2013.01); F16L 21/08 (2013.01); F16L 23/024 (2013.01); F16L 23/032 (2013.01); F16L 37/0845 (2013.01); F16L 23/162 (2013.01); F16L 23/22 (2013.01);
Abstract
A first projection is formed on the outer periphery of a bulb part, a second projection is formed on the socket rear end of the bulb part, a tapered part is formed with a decreasing diameter from the inner periphery of a heel part to the inner periphery of the second projection, and a third projection is formed on the tapered part. A first dimension B from the first projection to the third projection in an inclination direction opposite to an inclination direction G of the tapered part is smaller than a second dimension C from the first projection to the second projection in a radial direction A.