Method of making a reinforced molded flexible hose

Claim 1

THE METHOD OF MAKING A REINFORCED MOLDED FLEXIBLE HOSE EMPLOYING A DIVIDED, TWO-SECTION MOLD HAVING A TRANSVERSELY CORRUGATED CAVITY AND A MANDREL HAVING TRANSVERSE CORRUGATIONS COMPLEMENTARY TO THOSE OF THE MOLD CAVITY AND A PAIR OF DIAMETRICALLY OPPOSED, LONGITUDINALLY DISPOSED DEPRESSIONS FORMING FLUTED AREAS AND HAVING A BORE AND FLUID PASSAGES EXTENDING THEREFROM AND OPENING IN THE SURFACE OF THE MANDREL, THE STEPS OF TELESCOPING A TUBULAR BODY OF ELASTOMERIC MATERIAL OVER THE MANDREL, APPLYING SUCTION INTERNALLY OF THE BODY THROUGH THE BORE AND PASSAGES TO DRAW IT AGAINST THE SURFACE OF THE MANDREL THEREBY CAUSING THE BODY TO BE PROVIDED WITH TRANSVERSE CORRUGATIONS FOR THE MAJOR PORTION OF THE SURFACE THEREOF WITH THE BODY AT THE SIDES OF THE MANDREL DISPOSED IN THE FLUTED AREAS IN A RETRACTED POSITION, POSITIONING REINFORCING MEANS OVER SAID TUBULAR BODY HAVING PORTIONS IN ENGAGEMENT WITH THE BODY AT THE CREST OF THE CORRUGATIONS FOR LOCATING SAID REINFORCING MEANS IN PREDETERMINED POSITON WITH RESPECT TO THE CORRUGATIONS, INTRODUCING THE RESULTING ASSEMBLY INTO THE MOLD CAVITY WITH THE CORRUGATIONS OF THE BODY AND THE REINFORCING MEANS THEREON DISPOSED AND ACCURATELY LOCATED IN THE CORRUGATIONS OF THE MOLD CAVITY, CLOSING THE MOLD CAVITY WHILE THE MATERIAL OF THE BODY IS IN RETRACTED POSITION IN THE FLUTED AREA OF THE MANDREL AND PINCHING OF THE BODY BY THE MOLD IS PREVENTED, APPLYING FLUID UNDER PRESSURE INTERNALLY OF THE TUBULAR BODY THROUGH SAID BORE AND PASSAGES TO FORCE THE BODY AGAINST INTERNAL SURFACES OF THE CAVITY IN THE MOLD AND AROUND SAID REINFORCING MEANS WHILE APPLYING HEAT TO EFFECT A SHAPING OF THE ELASTOMERIC MATERIAL TO FORM THE HOSE, SETTING THE HOSE TO PERMANENTLY SHAPE IT IN THE SHAPE OF SAID MOLD CAVITY, REMOVING THE MANDREL AND PERMANENTLY SHAPED HOSE FROM THE MOLD CAVITY, AND REMOVING THE PERMANENTLY SHAPED HOSE FROM THE MANDREL.

Claim 2

THE METHOD OF MAKING A REINFORCED MOLDED FLEXIBLE HOSE EMPLOYING A DIVIDED, TWO-SECTION MOLD HAVING A TRANSVERSELY CORRUGATED CAVITY AND A MANDREL HAVING TRANSVERSE CORRUGATIONS COMPLEMENTARY TO THOSE OF THE MOLD CAVITY AND A PAIR OF DIAMETRICALLY OPPOSED, LONGITUDINALLY DISPOSED DEPRESSIONS FORMING FLUTED AREAS AND HAVING A BORE AND FLUID PASSAGES EXTENDING THEREFROM AND OPENING IN THE SURFACE OF THE MANDREL, THE STEPS OF TELESCOPING A TUBULAR BODY OF ELASTOMERIC MATERIAL OVER THE MANDREL, APPLYING SUCTION INTERNALLY OF THE BODY THROUGH THE BORE AND PASSAGES TO DRAW IT AGAINST THE SURFACE OF THE MANDREL THEREBY CAUSING THE BODY TO BE PROVIDED WITH TRANSVERSE CORRUGATIONS FOR THE MAJOR PORTION OF THE SURFACE THEREOF WITH THE BODY AT THE SIDES OF THE MANDREL DISPOSED IN THE FLUTED AREAS IN A RETRACTED POSITION, POSITIONING REINFORCING MEANS OVER SAID TUBULAR BODY HAVING PORTIONS IN ENGAGEMENT WITH THE BODY AT THE CREST OF THE CORRUGATIONS FOR LOCATING SAID REINFORCING MEANS IN PREDETERMINED POSITON WITH RESPECT TO THE CORRUGATIONS, INTRODUCING THE RESULTING ASSEMBLY INTO THE MOLD CAVITY WITH THE CORRUGATIONS OF THE BODY AND THE REINFORCING MEANS THEREON DISPOSED AND ACCURATELY LOCATED IN THE CORRUGATIONS OF THE MOLD CAVITY, CLOSING THE MOLD CAVITY WHILE THE MATERIAL OF THE BODY IS IN RETRACTED POSITION IN THE FLUTED AREA OF THE MANDREL AND PINCHING OF THE BODY BY THE MOLD IS PREVENTED, APPLYING FLUID UNDER PRESSURE INTERNALLY OF THE TUBULAR BODY THROUGH SAID BORE AND PASSAGES TO FORCE THE BODY AGAINST INTERNAL SURFACES OF THE CAVITY IN THE MOLD AND AROUND SAID REINFORCING MEANS WHILE APPLYING HEAT TO EFFECT A SHAPING OF THE ELASTOMERIC MATERIAL TO FORM THE HOSE, SETTING THE HOSE TO PERMANENTLY SHAPE IT IN THE SHAPE OF SAID MOLD CAVITY, REMOVING THE MANDREL AND PERMANENTLY SHAPED HOSE FROM THE MOLD CAVITY, AND REMOVING THE PERMANENTLY SHAPED HOSE FROM THE MANDREL.