| 摘要 |
A valve ( 20 ) for an inflatable product. One valve includes a cap ( 56 ) that provides a double seal ( 58, 60 ). An inner seal ( 58 ) closes an opening ( 66 ) for the valve ( 20 ). The inner seal ( 58 ) and the opening ( 66 ) are mounted in a chamber, and the chamber is closed by a second, outer seal ( 60 ) that provides a backup in case of failure of the inner seal ( 58 ). A flapper valve ( 22 ) may be used as another seal. Another embodiment of a valve ( 120 ) includes a rigid cap ( 124 ). Still another embodiment of a valve ( 220 ) includes a plug ( 232 ) that is attached to a valve opening. Moving the valve opening forward and backward plugs a rear opening ( 230 ) in the valve, closing the valve ( 220 ).
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