Quick-closing fire gate

Fluid handling – Destructible or deformable element controlled – Destructible element

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92 15, 137 78, 137560, 166 55, 251 62, 251203, F16K 1740

Patent

active

041081951

ABSTRACT:
A quick-closing fire gate is provided having specific application to sectionalized production facilities using vibratory conveyors to transport volatile substances. The conveyor passes through a portal defined by a gate housing at each barrier wall. The gate door or blade initially positioned above the housing is knife-edged to sever the conveyor during its downward translation and is forced flush against the gate housing by the interaction of opposed inclined surfaces on the blade and its support structure. The inclined surfaces furthermore function to eliminate gate rebound by dissipating the kinetic energy of the falling blade and redirecting reaction forces away from the line of blade travel. The rapidity of gate operation is accomplished by a photosensitive cell detonating an explosive bolt which releases a pressurized piston connected to the gate blade.

REFERENCES:
patent: 3216438 (1965-11-01), Prono et al.
patent: 3373758 (1968-03-01), Boutwell et al.
patent: 3590920 (1971-07-01), Orund et al.
patent: 3702620 (1972-11-01), Howell et al.
patent: 3766979 (1973-10-01), Petrick
patent: 3815619 (1974-06-01), Ross et al.
patent: 3834276 (1974-09-01), Gournelle
patent: 3915196 (1975-10-01), Bergman

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