Manufacture of vulcanized elastomeric hose

Abstract

Abstract A BATCH PROCESS FOR VULCANIZING REINFORCED ELASTOMERIC HOSE, WHICH AVOIDS THE USE OF THE LEAD PRESS METHOD, IS DISCLOSED. THE PROCESS BASICALLY ENTAILS ANNULARLY CLAMPING THE OPPOSITE ENDS OF THE UNCTURED HOSE SO AS TO PREVENT ENTRY OF FLUID PRESSURE INTO THE SPACE BETWEEN ANY TWO PROXIMATE LAYERS OF ELASTOMERIC MATERIAL OCCUPIED BY A LAYER OF REINFORCEMENT, IMMERSING THE HOSE IN A BATH OF LIQUID, E.G. WATER, SUFFICIENT TO COVER THE HOSE SUBSTANTIALLY COMPLETELY, AND THEN IN A PRESSURIZED HEATING ENVIRONMENT, E.G. WATER, SUFFICIENT TO COVER THE HOSE SUBSTANSUBJECTING THE UNCURED HOSE AT BOTH ITS INNER AND ITS OUTER SURFACES TO THE ACTION OF A PRESSURIZED HEATING FLUID AT THE DESIRED VULCANIZING TEMPERATURE. THE PROCESS MAY BE PRACTICED WITH THE HOSE EITHER FILLED WITH A LIQUID SUCH AS WATER OR EMPTY, AND SO THAT EITHER THE SAME PRESSURE IS APPLIED TO BOTH SAID HOSE SURFACES OR A HIGHER PRESSURE IS APPLIED TO THE INNER HOSE SURFACE THAN TO THE OUTER ONE. THE HOSE INTERIOR MAY BE OPENED OR CLOSED AT ITS OPPOSITE ENDS TO THE AUTOCLAVE INTERIOR. IF CLOSED, THE HOSE IS FILLED WITH LIQUID AND A PRESSURE RELIEF VALVE IS PREFERABLY PROVIDED TO ENSURE THAT THE PRESSURE WITHIN THE HOSE CONNOT EXCEED THE PRESSURE AROUND THE HOSE BY MORE THAN A PREDETERMINED AMOUNT. THIS ABSTRACT IS NOT TO BE TAKEN EITHER AS A COMPLETE EXPOSITION OR AS A LIMITATION OF THE PRESENT INVENTION, HOWERVER, THE FULL NATURE AND EXTENT OF THE INVENTION BEING DISCERNIBLE ONLY BY REFERENCE TO AND FROM THE ENTIRE DISCLOSURE.

Inventors

• 👤 R Miller
• 👤 C Derderian

Bibliographic Details