Patent ID: 8439064

Claim:
A safety valve for a compressed gas reservoir, said safety valve comprising: an exhaust duct, that is connectable to the compressed gas reservoir; and a sealing element, which is arranged to move within the exhaust duct and selectively opens the exhaust duct to the outside, depending on an operating phase; wherein, the sealing element has a greater cross-sectional area on a side facing away from the compressed gas reservoir than on a side facing the compressed reservoir; the exhaust duct has a constriction on a side of the sealing element that is remote from the compressed gas reservoir; the sealing element is held in its starting position in the case of no exhaust; a locking element extends into an interior of the sealing element in an assembly position; a first end of the locking element abuts a housing wall in a sealing element section of the exhaust duct; a second end of the locking element abuts the exhaust duct in a sealing manner at a projection of an inner wall, which is formed for reducing the flow cross section of the exhaust duct, such that the locking element thus simultaneously serves as a sealing and locking element.