Patent ID: 8317514

Claim:
A device for difficult intervention in a closed enclosure ( 1 ), comprising a first duct ( 11 ), a first end of which is intended to penetrate into the enclosure ( 1 ), wherein the first duct ( 11 ) is furthermore connected: to a pressure reduction means adapted to suck out air present in the closed enclosure and lower the pressure within the enclosure ( 1 ) to a pressure less than the pressure outside the closed enclosure; to an outlet duct ( 18 ) for extracting a sucked-up material from the closed enclosure; and to a duct ( 20 ) connected to a pressure relieving device ( 21 , 22 ), the pressure relieving device having an opening ( 23 ) in contact with external air, such that, when the difference in pressure between the inside of the enclosure ( 1 ) and the external air reaches a sufficient value, external air suddenly penetrates into the closed enclosure ( 1 ) via the duct ( 20 ) and the first duct ( 11 ), causing a sudden rise in pressure inside the enclosure; a second duct ( 12 ), one end of which is designed to penetrate within the enclosure ( 1 ) and the other end of which is suitable for connection with a duct ( 24 ) connected to a fluid reservoir ( 6 ); and an end-fitting ( 13 ) made of silicone or elastomer through which the end of the first and second ducts ( 11 ; 12 ) designed to penetrate into the enclosure ( 1 ) passes, the end-fitting being adapted to its positioning in an opening ( 14 ) of the enclosure ( 1 ).