Pipe joints or couplings – Flexible joint – rigid members – Resilient sleeve type
285423, F16L 2100
An abrasion resisting flexible joint pipe is disclosed which is adapted to flexibly holding together opposed end tubes made of rigid material and transferring mud or sand removed as by dredging and comprises a pair of opposed end tubes, an elastic rubber body flexibly holding together the opposed end tubes and defined by a cylindrical inner rubber surface and a spherical shell-shaped outer rubber surface, and a spherical shell-shaped reinforcing layer embedded in the elastic rubber body. The abrasion resisting flexible joint pipe satisfies the condition given by
patent: 1230867 (1917-06-01), Cobb
patent: 3613736 (1971-10-01), Kuwahara
patent: 3765979 (1973-10-01), Thomas
patent: 3814468 (1974-06-01), Mauramatsu
Arola Dave W.
Bridgestone Tire Company Limited
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