| 摘要 |
An inflatable cartridge assembly includes a mandrel (20) having a substantially axially-extensible core member (22) and two end abutments (32) one on each end of the core member and extending radially outwardly therefrom. An inflatable and radially expandable sleeve (10) is positioned around the mandrel (20) and bonded in a fluid tight relation at its outwardly directed end faces to inwardly directed end surfaces of the end abutments. At least one aperture (30) is provided on the mandrel for admission of a pressurized fluid to the interior of the sleeve (10) to expand the sleeve. In assembling the cartridge, the sleeve may be formed on the mandrel by molding an elastomeric material directly to the mandrel in a manner such as casting. |
