B - Operations – Transporting – 29 – D
Patent
B - Operations, Transporting
29
D
18/757
B29D 23/00 (2006.01) B29C 47/02 (2006.01) B29C 47/06 (2006.01)
Patent
CA 1204571
-17- Abstract of the Disclosure Method and Apparatus for Extruding Reinforced Hose Extruded reinforced hoses are useful in fluid systems which operate at high pressures. Other reinforced hoses are prepared in individual stations for particular parts of the reinforced hose consequently requiring large amounts of manufacturing floor space. Still other processes require extruding a hose on a mandrel and subsequently applying a fabric reinforcement member. In these processes, the length of the hose is limited by the length of the mandrel. The present apparatus produces an extruded reinforced hose by braiding a metal reinforcement member on a mandrel and extruding a liner and cover at approximately the same location as the member leaves the mandrel. The formed hose is pulled at a linear rate faster than the hose is being produced in order to change the braid angle of the braided member to a predetermined selected braid angle and holding for subsequent curing. The metal braided reinforcement member provides the high strength characteristic while the extruding of the liner and the cover at approximately the same location near the mandrel eliminates the need for separate lengthy mandrels on which to extrude the hose, thus minimizing manufacturing floor space and reducing costs.
453127
Caterpillar Tractor Co.
Kirby Eades Gale Baker
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