| 摘要 |
PCT No. PCT/DE83/00061 Sec. 371 Date Nov. 21, 1983 Sec. 102(e) Date Nov. 21, 1983 PCT Filed Mar. 29, 1983 PCT Pub. No. WO83/03462 PCT Pub. Date Oct. 13, 1983.Damper for the protection of equipment, through which a gaseous or vaporous medium, particularly air, flows, against pressure waves, particularly in ventilation and/or air conditioning installations for the protection of the components of the plant, its internals and ducts, consisting of a frame structure and a multiplicity of slats (15) which are supported therein hinged about parallel axes and in one plane and which are held in their open position by restoring forces and are braced against stops. Special features are: the individual slats (15) consist of approximately flat strips which are hinged about respective axes extending in the region of their one longitudinal edge, and the slats (15) are followed in the pressure surge direction (22) of the medium by a support grid (5) which is fastened to the frame structure, covers the base area of the slat arrangement, the grid bars (9, 7) of which, arranged in a support raster, have a pitch matched to the width of the strips, and against which the slats (15), in their closed position, rest at least in a majority of support points distributed over their entire length.
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