| 摘要 |
Provided herein is a pneumatic carrier having a leak resistant cargo area where first and second mating shells form the carrier. To provide a leak resistant cargo area, the one embodiment of the carrier employs a tongue and groove sealing arrangement. In this arrangement, an engagement surface about a peripheral edge of one of the shells includes a tapered groove and the engagement surface around the engagement surface of the other shell includes a protruding tongue member. A sealing element is disposed over the tongue or lines the groove. When the first and second shell members are joined together, the sealing member provides a substantially fluid-tight seal between the first and second shell members.
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