The present invention relates to collapsible hoses and inflatable structures such as pneumatic actuators for water control gates that are manufactured on and incorporate into their structure a flexible internal mandrel with rounded edges. One face of the mandrel and all of its rounded edges separate from the inflatable membrane during pressurization, while the remaining face of the flexible mandrel remains bonded to the remaining face of the inflatable envelope. Sharp internal edges (in the deflated condition) and their associated stress concentrations (in the inflated condition) are thus eliminated.
Inflatable Article with Reduced Stress Concentrations
2017-06-15
Patent
Electronic Resource
English
IPC: | E02B HYDRAULIC ENGINEERING , Wasserbau / A61F FILTERS IMPLANTABLE INTO BLOOD VESSELS , Filter in Blutgefäße implantierbar / B63B Schiffe oder sonstige Wasserfahrzeuge , SHIPS OR OTHER WATERBORNE VESSELS / B63C LAUNCHING, HAULING-OUT, OR DRY-DOCKING OF VESSELS , Zuwasserlassen, Trockenstellen, Docken oder Bergen von Schiffen / E21F Sicherheitsvorrichtungen, Förderung, Auffüllen oder Bergversatz, Rettungswesen, Bewetterung oder Entwässerung in oder von Gruben oder Tunnels , SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINAGE IN OR OF MINES OR TUNNELS / F16G Riemen, Kabel oder Seile, vorwiegend für Antriebszwecke , BELTS, CABLES, OR ROPES, PREDOMINANTLY USED FOR DRIVING PURPOSES |
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