Patent ID: RE41863

Claim:
In The combination with of a floor structure and a floor grommet , where the floor structure comprises an elevated floor surface providing and defines an under-floor space for wiring and serving as defines a plenum for confining and supplying conditioned air under elevated pressure , and where said elevated floor surface is provided with one or more first openings for directing a flow of conditioned air into the a space above the floor surface and with a cable openings for opening, separate from said one or more first openings, passing cabling from the under floor under- floor space to the space above, a and where the floor grommet comprising comprises, (a) a frame of a size and shape to be received in a said cable opening in said floor surface, and said frame being disposed in said cable opening, (b) said frame defining a frame opening and forming a lining for guiding and protecting cabling passing through said cable opening, (c) at least one sealing member mounted in said frame, (d) said sealing member comprising a large plurality of filamentary elements anchored in cantilever fashion at inner ends thereof in said frame and extending into said frame opening to form a substantial air seal to resist the flow of conditioned air through said frame opening, and (e) said filamentary elements being individually flexibly displaceable at outer ends thereof to accommodate the presence of said cabling passing through said frame opening.