F - Mech Eng,Light,Heat,Weapons – 16 – L
Patent
F - Mech Eng,Light,Heat,Weapons
16
L
189/59, 26/78
F16L 37/00 (2006.01) F16L 37/091 (2006.01)
Patent
CA 1244232
ABSTRACT OF THE DISCLOSURE A tubing joint comprizes a grip-ring whose grip-nails bite the outer wall of a tubing inserted into the tubing joint proper to prevent the inserted tubing from moving in the tubing-detaching direction, and a release-ring which releases the bite of the grip-nails from the outer wall of the inserted tubing. The grip-ring is formed in a zigzag ring having a number of notches cut radially and alternately from the inner and outer circumferences of the ring. The outer extremity side of the grip-ring is bent by a constant width in the tubing-admitting direction and the bent ends, i.e., the outer extre- mities, are inserted into a catching section to hold the grip-ring within the joint proper. The inner extremities of the grip-ring formed by the notches serve as grip-nails. The length of the release-ring is arranged in such a way that, when the inserted tubing with the grip-nails biting its outer wall is pulled slightly backward in the tubing-detaching direction, thereby causing the grip-nails to make an arc-like rotation about the outer extremity of the grip-ring as a rotational fulcrum so that the grip-nails are brought to a position slightly over the maximal bite position, the release-ring may be maximally pulled backward with respect to the joint proper and in contact with the grip-nails in a locked state.
480286
Hama Tomio
Yamazaki Kiyoyasu
Kabushiki Kaisha Nihon Pisco
Smart & Biggar
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