Method of making wire-reinforced hose

Claim 1

A METHOD OF MAKING A FLEXIBLE, WIRE-REINFORCED, INWARDLY CORRUGATED, PLASTIC HOSE, COMPRISING THE STEPS OF ADVANCING A ROTATING HELICALLY COILED WIRE OF CONSTANT PITCH AXIALLY PAST THE EXTRUSION DIE OF A THERMOPLASTIC EXTRUDER, CONTINUOUSLY MELT-EXTRUDING THROUGH SAID DIE A TAPE OF VISCOUS THERMOPLASTIC MATERIAL THE WIDTH OF WHICH IS SLIGHTLY GREATER THAN THE PITCH OF SAID HELICALLY COILED WIRE, INITIALLY DIRECTING THE LEADING END OF SAID TAPE IN THE VISCOUS STATE THEREOF WITH RESPECT TO SAID HELICALLY COILED WIRE SO THAT THE TWO LATERAL EDGES OF SAID TAPE OVERLIE AND COME INTO ADHERING ENGAGEMENT WITH TWO ADJACENT TURNS OF SAID WIRE, RESPECTIVELY, AND THEREAFTER MAINTAINING A PREDETERMINED RELATIONSHIP BETWEEN THE SPEED OF EXTRUSION OF SAID TAPE AND THE SPEEDS OF ROTATION AND AXIAL ADVANCE OF SAID HELICALLY COILED WIRE TO CAUSE SAID TAPE TO BE ENTRAINED AROUND THE EXTERIOR OF SAID HELICALLY COILED WIRE BY VIRTUC OF THE ROTATION OF THE LATTER, WITH THE LATERAL EDGES OF EACH TURN OF SAID TAPE OVERLYING THE RESPECTIVE PAIR OF ADJACENT TURNS OF SAID HELICALLY COILED WIRE AND ENGAGING THE LATERAL EDGES OF THE NEXT ADJOINING TURNS OF SAID TAPE IN SEAM-FORMING RELATION, AND WITH THE MEDIAL PORTION OF EACH TURN OF SAID TAPE BETWEEN THE ASSOCIATED ADJACENT TURNS OF SAID WIRE PHYSICALLY UNSUPPORTED FROM INTERIORLY OF THE COIL, WHEREBY EACH INCREMENT OF LENGTH OF SAID MEDIAL PORTION OF SAID TAPE UPON BEING LAID ONTO SAID HELICALLY COILED SAGS INWARDLY OF THE COIL UNDER THE FORCE OF GRAVITY DURING AN INITIAL PART OF IT JOINT ROTATION WITH SAID HELICALLY COILED WIRE WHILE BECOMING AT LEAST PARTIALLY SET IN ITS INWARDLY SAGGING STATE BEFORE THE RESPECTIVE PART OF SAID HELICALLY COILED WIRE HAS COMPLETED ONE HALF TURN OF ITS ROTATION.

Claim 2

A METHOD OF MAKING A FLEXIBLE, WIRE-REINFORCED, INWARDLY CORRUGATED, PLASTIC HOSE, COMPRISING THE STEPS OF ADVANCING A ROTATING HELICALLY COILED WIRE OF CONSTANT PITCH AXIALLY PAST THE EXTRUSION DIE OF A THERMOPLASTIC EXTRUDER, CONTINUOUSLY MELT-EXTRUDING THROUGH SAID DIE A TAPE OF VISCOUS THERMOPLASTIC MATERIAL THE WIDTH OF WHICH IS SLIGHTLY GREATER THAN THE PITCH OF SAID HELICALLY COILED WIRE, INITIALLY DIRECTING THE LEADING END OF SAID TAPE IN THE VISCOUS STATE THEREOF WITH RESPECT TO SAID HELICALLY COILED WIRE SO THAT THE TWO LATERAL EDGES OF SAID TAPE OVERLIE AND COME INTO ADHERING ENGAGEMENT WITH TWO ADJACENT TURNS OF SAID WIRE, RESPECTIVELY, AND THEREAFTER MAINTAINING A PREDETERMINED RELATIONSHIP BETWEEN THE SPEED OF EXTRUSION OF SAID TAPE AND THE SPEEDS OF ROTATION AND AXIAL ADVANCE OF SAID HELICALLY COILED WIRE TO CAUSE SAID TAPE TO BE ENTRAINED AROUND THE EXTERIOR OF SAID HELICALLY COILED WIRE BY VIRTUC OF THE ROTATION OF THE LATTER, WITH THE LATERAL EDGES OF EACH TURN OF SAID TAPE OVERLYING THE RESPECTIVE PAIR OF ADJACENT TURNS OF SAID HELICALLY COILED WIRE AND ENGAGING THE LATERAL EDGES OF THE NEXT ADJOINING TURNS OF SAID TAPE IN SEAM-FORMING RELATION, AND WITH THE MEDIAL PORTION OF EACH TURN OF SAID TAPE BETWEEN THE ASSOCIATED ADJACENT TURNS OF SAID WIRE PHYSICALLY UNSUPPORTED FROM INTERIORLY OF THE COIL, WHEREBY EACH INCREMENT OF LENGTH OF SAID MEDIAL PORTION OF SAID TAPE UPON BEING LAID ONTO SAID HELICALLY COILED SAGS INWARDLY OF THE COIL UNDER THE FORCE OF GRAVITY DURING AN INITIAL PART OF IT JOINT ROTATION WITH SAID HELICALLY COILED WIRE WHILE BECOMING AT LEAST PARTIALLY SET IN ITS INWARDLY SAGGING STATE BEFORE THE RESPECTIVE PART OF SAID HELICALLY COILED WIRE HAS COMPLETED ONE HALF TURN OF ITS ROTATION.