Smoke and heat evacuator
OwnerAimone Balbo Di Vinadioinventor
Life of this patent
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Abstract
A smoke and heat evacuator that can be applied at an opening of a generally vertical wall of a closed environment, includes a supporting frame bearing a shutter, which oscillates between a normally closed position and an open position via at least one lateral linkage having a first arm that, in the closed position, extends obliquely, with a top end articulated to the shutter via a slider subject to the downward-thrust action of a spring and with a bottom end articulated to the supporting frame via a second lengthenable arm.
Claims11
A smoke and heat evacuator that can be applied at an opening of a generally vertical wall of a closed environment, comprising:
- a supporting frame bearing a shutter, which oscillates about an axis of hinges set at a bottom side of said shutter and is mobile between a normally closed position, in which said opening is obstructed, and an open position to enable evacuation of smoke and heat through said opening,
- means for releasable blocking of the shutter in said closed position, and
- actuator means for governing displacement of said shutter from said closed position to said open position following upon release of said blocking means, and
- said actuator means comprising at least one linkage that interconnects laterally said shutter and said supporting frame and comprises a first arm that, in said closed position, extends obliquely with a top end articulated to the shutter via a slider subject to a downward-thrust action of a spring and with a bottom end articulated to the supporting frame via a second arm that can be lengthened into a condition, corresponding to said open position of the shutter, in which said second arm is aligned on the prolongation of the first arm.
Dependencies are inferred from the claim text.