Elongated members, e.g. leaf springs, located substantially at right angles to closure axis and acting between the face of the closure and abutments on container

Full Title

Clamping or other pressure-applying devices for securing or retaining closure members (expansible stoppers B65D39/12) > for applying axial pressure to engage closure with sealing surface > Elongated members, e.g. leaf springs, located substantially at right angles to closure axis and acting between the face of the closure and abutments on container