| 摘要 |
A portlight for a marine vessel including a lens having an outer surface, an inner surface and a first sealing surface disposed at a first angle relative to the outer surface, wherein the first angle is greater than ninety degrees, a portlight frame having a flange, an extension and a second sealing surface disposed at a second angle relative to an outer surface of the flange, wherein the second angle is less ninety degrees and supplementary to the first angle, a sealing gasket disposed between the first and second sealing surfaces, and a hinge rotatably secured to the extension and fixedly secured to the lens, wherein rotation of the hinge to a closed position causes the first sealing surface to compress the sealing gasket against the second sealing surface in the absence of undesirable shearing of the gasket.
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