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:
Jan. 09, 2001
Filed:
Jun. 12, 1998
Applicant:
Inventors:
Tadahiro Ohmi, Sendai-shi, Miyagi, JP;
Michio Yamaji, Osaka, JP;
Nobukazu Ikeda, Osaka, JP;
Tsutomu Shinohara, Osaka, JP;
Tetsuya Kojima, Osaka, JP;
Assignee:
Other;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16L 1/700 ;
U.S. Cl.
CPC ...
F16L 1/700 ;
Abstract
Each of seal projections,is positioned radially outward of an inner periphery,of abutting end face of each of joint members,and has in section a contour which comprises a circular-arc portion,extending radially outward from the abutting end face, and a straight portion,extending from the circular-arc portion,. The circular-arc portion,has a center positioned radially inward of the point of intersection of the circular-arc portion,and the straight portion,. The straight portion,is inclined at 30 to 60 degrees with respect to the direction of axis of the joint member.