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US 5,695,536 AGranted
Apparatus for the positioning and the movement of the filtering ceiling of spray paint booths
AssigneeNova Verta International S.p.A.
InventorGiancarlo Fabrizi
Life of this patent
Estimating the term…
Abstract
A combination of two frames (2) and (4), one inside the other, for positioning a filtering ceiling. The frames have indented splines (3) and (5) on their facing surfaces, and an inflatable tube (6) is anchored on the spline of one of the frames. The tube is inflated to properly position the two frames, to hold the ceiling in place and to seal it so that all air must pass through the filtering ceiling. The tube is deflated to allow the filtering ceiling to be lowered for maintenance or replacement.
Claims7
An apparatus for positioning a filtering ceiling in a chamber comprising:
- two frames sized so that one can be placed inside the other, each with an indented spline in a surface facing the other, the smaller of said two frames bordering a support for the filtering ceiling, the larger of said two frames being adapted to be anchored to the chamber;
- a flexible tube anchored to the spline of one of said two frames;
- a system for inflating and deflating said tube to thereby sealably hold said two frames together;
- and
- a drive operably connected to rotating bars for acting on cables by which the filtering ceiling is suspended to thereby vary its level.
2 more elements
Dependencies are inferred from the claim text.