| 摘要 |
The present invention is related to a device for supplying hot air to an inflatable structure, said device comprising one or more electrical heating elements (4), said device being equipped to be installed in the air flow between an air blower (21) and an inflatable structure. According to the preferred embodiment, the device is further equipped with a spring-operated air pressure switch, comprising a hinged plate (10), said plate being arranged to be blown to a closed condition by air flowing into the device, thereby closing an electrical contact, said plate being further arranged to open when said air flow is absent, thereby opening said electrical contact. |
