| 摘要 |
<p>An apparatus (10) for sealing and pressurizing a bottle having an opening (16) in a top end section (18) and external threads (20) extending around the end section includes aninternal cap section (30) having a bottom end with a bottomopening (60), a top end, and a generally cylindrical side wall located between the two ends. This cap section forms a chamber adapted to receive at least a portion of the top end section and has internal threads (28) formed in this chamber and adapted for engaging the external threads in order to detachably mount the apparatus on the bottle. An annular compressing plate (32) is mounted on the cap section (30) so as to be movable upwardly or downwardly thereon. This compressing plate is non-rotatable relative to the cap section. A resilient, expandable and compressible bellows (34) is located above the compressing plate and around the cap section. There is an exterior cover member (24) that has a cylindrical side wall with interior threads (28) in operative engagement with the edge (96) of the plate. Rotation of the cover member to a sufficient extent causes the bellows to be compressed by upward movement of the plate.</p> |
