Pipe joints or couplings – Flexible joint – rigid members – Bellows
Reexamination Certificate
2005-03-01
2005-03-01
Hewitt, James M. (Department: 3679)
Pipe joints or couplings
Flexible joint, rigid members
Bellows
C285S261000, C285S299000
Reexamination Certificate
active
06860519
ABSTRACT:
A ball joint apparatus for a pressurized fluid line includes a bellows and a pair of opposed tube portions to accommodate limited flexure between the tube portions. The apparatus also includes an annular ball element positioned over one of the tube portions and an annular housing member mounted on the other tube portion and overlapping the ball member. As initially formed, the overlapping end of the housing member is open and of a diameter exceeding the maximum diameter of the ball member to permit ease of assembly. After the component parts are in position and welded as desired, the apparatus is placed in a hydraulic press and the open end of the housing member is necked down by a swaging process to establish bearing contact with the ball member. Alternative arrangements of the apparatus are provided for use with stainless steel tubing and with titanium tubing.
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Technical Bulletin entitled “Low Bending Moment Ball Socket Joint” (Stainless Steel Products, Inc. Bulletin No. 050188, 3 pages).*
Technical Bulletin entitled “Bellows Ball Joints” (General Connectors Technical Bulletin No. 1350, 4 pages).
Berengut Vadim
Moore Arthur Lyman
Rivera Louis
Tate Wilford R.
Avica Inc.
Bissell Henry M.
Hewitt James M.
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