Ventilating system

Claim 2

A ventilating system for air containing materials including moisture, smoke, fumes, grease vapors and the like, comprising, a. a vertically oriented, elongate housing, b. a hood member for collecting the air and materials for passage through the housing (a), c. a first chamber within the lower portion of the housing (a) for reception of the air and materials from the hood member (b), said chamber having a curved partition extending substantially the width of the housing (a) to urge the air and materials into a cyclonic flow pattern, d. first nozzle means within said first chamber (c) for imparting a spray of water across substantially the width of the first chamber (c) to extract materials from the air, e. drain means in the first chamber (c) for removing water and materials that collect in the bottom of said chamber, f. a second chamber within the upper portion of the housing (a) having an exhaust port therein, g. a conduit extending substantially the width of the housing (a) for flow of air with residual materials from the first chamber (c) to the second chamber (f), h. at least one baffle within the conduit (g) extending substantially the width of the housing for imparting a directional change to the flow of exhaust air in the second chamber (f), and i. damper means in the second chamber (f) for sealably closing the exhaust port upon rising of temperature therein.

Claim 3

The ventilating system of claim 1 including, additionally, k. second nozzle means disposed within both the first and second chambers (c) and (f) respectively for imparting a spray of wash liquid to said chambers.

Claim 4

The ventilating system of claim 1 wherein the damper means (i) includes, more particularly, a damper plate pivotally secured within the second chamber (f) adjacent the exhaust port of said chamber, a retention line for maintaining the damper plate normally in the open position relative to the exhaust port, and at least one fusible link in the retention line, said link being adapted to melt at an elevated temperature to release the retention line whereby the damper plate may close to seal the exhaust port.

Claim 5

The system of claim 1 wherein the second chamber (f) is larger than the first chamber (c) so that movement of air with residual materials is slowed upon entering the second chamber (f).

Claim 6

The system of claim 4 including, additionally, baffle means within the second chamber (f) to urge the air with residual materials into a cyclonic flow pattern therewithin.

Claim 7

A ventilating system for air containing materials including moisture, smoke, fumes, grease vapors and the like comprising, a. a vertically oriented, elongate housing, b. a hood member for collecting the air and materials for passage through the housing (a), c. a first chamber within the lower portion of the housing (a) for reception of the air and materials from the hood member (b), said chamber having a curved partition extending substantially the width of the housing (a) to urge the air and materials into a cyclonic flow pattern, d. first nozzle means within said first chamber (c) for imparting a spray of water across substantially the width of the first chamber (c) to extract materials from the air, e. drain means in the first chamber (c) for removing water and materials that collect in the bottom of said chamber, f. a second chamber within the upper portion of the housing (a) having an exhaust port, the second chamber being larger in volume than the first chamber (c) so that movement of air with residual materials is slowed upon entering the second chamber, g. a conduit extending substantially the width of the housing (a) for flow of air with residual materials from the first chamber (c) to the second chamber (f), h. at least one baffle within the conduit (g) extending substantially the width of tHe housing for imparting a directional change to the flow of exhaust air into the second chamber (f), i. second nozzle means disposed within both the first and second chambers (c) and (f) respectively for imparting a spray of wash liquid to said chambers, and j. damper means in the second chamber (f) for sealably closing the exhaust port upon rise of temperature there.

Claim 8

A ventilating system for air containing materials including moisture, smoke, fumes, grease vapors and the like comprising, a. a vertically oriented, elongate housing, b. a hood member for collecting the air and materials for passage through the housing (a), c. a first chamber within the lower portion of the housing (a) for reception of the air and materials from the hood member (b), said chamber having a curved partition extending substantially the width of the housing (a) to urge the air and materials into a cyclonic flow pattern, d. first nozzle means within said first chamber (c) for imparting a spray of water across substantially the width of the first chamber (c) to extract materials from the air, e. drain means in the first chamber (c) for removing water and materials that collect in the bottom of said chamber, f. a second chamber within the upper portion of the housing (a) having an exhaust port, the second chamber being larger in volume than the first chamber (c) so that movement of air with residual materials is slowed upon entering the second chamber, g. a conduit extending substantially the width of the housing (a) for flow of air with residual materials from the first chamber (c) to the second chamber (f), h. at least one baffle within the conduit (g) extending substantially the width of tHe housing for imparting a directional change to the flow of exhaust air into the second chamber (f), i. second nozzle means disposed within both the first and second chambers (c) and (f) respectively for imparting a spray of wash liquid to said chambers, and j. damper means in the second chamber (f) for sealably closing the exhaust port upon rise of temperature there.

Claim 9

The invention of claim 6 wherein the damper means (j) includes, more particularly, a damper plate pivotally secured within the second chamber (f) adjacent the exhaust port of said chamber, a retention line for maintaining the damper plate normally in the open position relative to the exhaust port, and at least one fusible link in the retention line, said link being adapted to melt at an elevated temperature to release the retention line whereby the damper plate may close to seal the exhaust port.