Patent ID: 7251914

Claim:
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 pit lid mounting frame having an underside and an outer peripheral margin that seats upon said bearing ledge, a frame mount latch ring depending from said underside of said pit lid mounting frame and located within the circumference of said upright pit wall enclosure, and a plurality of frame mount latches having bases attached to said pit wall enclosure at spaced intervals from each other, and hooks that are extendable from said bases to a latching position engaging said frame mount latch ring at spaced locations thereon and said hooks are retractable toward said bases to thereby force said peripheral margin of said pit lid mounting frame downwardly upon said bearing ledge whereby said pit lid mounting frame bears down upon said bearing ledge with a force that exceeds gravitational force on said pit lid mounting frame.