Patent ID: 9562618
Date: 2017-02-07
CPC Classifications: A62C,F16K,Y10T

Claim:
1. A thermal safety device comprising: (a) a device body which comprises an inlet duct in communication with a fluid storage and at least one outlet hole in communication with an atmosphere; (b) a shut-off device mounted in said device body and movable between a closed position, in which it prevents a flow of gas from the inlet duct to an outlet hole, and an open position, in which it permits a flow of fluid from the inlet duct to the outlet hole; (c) a retaining element operatively associated to said shut-off device to keep said shut-off device in a closed position, said retaining element comprising a casing containing a heat sensitive substance suitable for expanding upon reaching a first predefined temperature to make such casing break and permit a shifting of the shut-off device to the open position; (d) a yielding support element directly contacts with and suitable for supporting said casing and protecting at least a portion of said casing while a temperature reached by said support element is below a second predefined temperature higher than the first, said support element being made of a material suitable to yield upon reaching said second predefined temperature, so as to allow movement of the shut-off device to the open position.