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US 7,251,914 B1Granted
Frame mount latch assembly for subsurface aircraft servicing pit
AssigneeDabico, Inc.
InventorsCraig Petersen, Eynon S. Johnson
Life of this patent
Estimating the term…
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AssigneeDabico, Inc.
InventorsCraig Petersen, Eynon S. Johnson
Estimating the term…
A subsurface aircraft servicing pit is provided with a hold down assembly that secures a pit lid mounting frame in position on a bearing seat at the top of a prefabricated pit enclosure. A frame mount latch ring is suspended in spaced relation beneath the underside of the pit lid mounting frame and inwardly from the walls of the pit enclosure. At least a pair of frame mount latches are provided on opposite sides of the pit. The latches have bases secured to the pit walls and hooks that extend over the top of the frame mount latch ring. The frame mount latches are constructed so as to exert a downward force on the frame mount latch ring, thus holding the peripheral margin of the pit lid mounting frame tightly against a peripheral bearing seat surrounding the pit opening. The necessary force exerted by the frame mount latches may be provided by a coil spring located within the structure of each frame mount latch.
A frame mount assembly for a subsurface aircraft servicing pit having an upright pit wall enclosure atop which a bearing ledge surrounds an open pit access opening comprising:
A frame mount assembly for a subsurface aircraft servicing pit having at least one upright wall that forms a complete laterally encircling enclosure to define a pit cavity therewithin and having a peripheral bearing ledge located atop and peripherally beyond said laterally encircling enclosure, comprising:
In combination,
Dependencies are inferred from the claim text.