Ronald E Hoffmann Deceased750 S Hanley Rd UNIT 300, Saint Louis, MO 63105

4700688, Oct 20, 1987

Oct 10, 1986

6/918601

James A. Searcy - Florissant MO
Roger O. Zoellner - Kirkwood MO
Ronald C. Hoffmann - Maryland Heights MO

Cambridge Engineering, Inc. - Chesterfield MO

F21C 1508
F23J 1100

126299D

In a ventilating hood generally for use in conjunction with a heating apparatus, such as a cooker, a housing incorporates both a diverter and a rear support, the two of which join to segregate the incoming air through a supply conduit from the outgoing air traversing through a support arranged filter and into an exhaust outlet. The front wall of the housing, which is spaced from the lower end of the diverter, incorporates a slightly upwardly inclined deflector, which directs substantially all of the air incoming to the hood upwardly and rearwardly directly towards for movement through the filter, and out of the exhaust outlet, and since the air is generally unencumbered by any structure in the path of its flow, it moves in a rather parallel course with the arranged diverter, and rapidly exits carrying the entrained fumes therewith significantly reducing the BTU requirements for operation of this hood. A thinly slotted diffuser extending approximately the width of the hood maintains a thin film air flow through the same and thereby enhancing the efficiency of operation of the hood through a minimum of absorption of tempered air. A second deflector functions in cooperation with a first named deflector, and directs a minor segment of the air flow substantially downwardly for creating an air shield above the frontal portion of the heating apparatus, to thereby prevent the escape of any generated fumes from avoiding entrainment with the major flow of air passing through the filter and out of the hood by way of its exhaust conduit.

4286572, Sep 1, 1981

Mar 8, 1979

6/018725

James A. Searcy - Florissant MO
Roger O. Zoellner - Kirkwood MO
Ronald C. Hoffmann - Maryland Heights MO

Cambridge Engineering, Inc. - Chesterfield MO

F21C 1508
F23J 1100

126299D

In a ventilating hood generally for use in conjunction with a heating apparatus, such as a cooker, a housing incorporates both a diverter and a rear support, the two of which join to segregate the incoming air through a supply conduit from the outgoing air traversing through a support arranged filter and into an exhaust outlet. The front wall of the housing, which is spaced from the lower end of the diverter, incorporates a slightly upwardly inclined deflector, which directs substantially all of the air incoming to the hood upwardly and rearwardly directly towards for movement through the filter, and out of the exhaust outlet, and since the air is generally unencumbered by any structure in the path of its flow, it moves in a rather parallel course with the arranged diverter, and rapidly exits carrying the entrained fumes therewith significantly reducing the BTU requirements for operation of this hood. A second deflector functions in cooperation with a first named deflector, and directs a minor segment of the air flow substantially downwardly for creating an air shield above the frontal portion of the heating apparatus, to thereby prevent the escape of any generated fumes from avoiding entrainment with the major flow of air passing through the filter and out of the hood by way of its exhaust conduit.