Oven and space heater appliance

Claim 2

In a heating appliance, the combination comprising a. an oven chamber and a combustible gas main burner extending in the oven chamber lower interior, b. first passage means for conducting to the burner air flowing from an exterior intake, c. second passage means for conducting hot combustion products flowing to an exterior vent, d. third passage means for conducting an air stream into heat receiving relation with the oven chamber but at the exterior thereof during operation of the burner to heat the interior of the oven chamber, the third passage extending downwardly at the side of the first passage means opposite the oven chamber, and then directly beneath the lower interior of the oven chamber to receive downward heat transmission therefrom, and e. control means to control combustible gas delivery to the burner in response to temperature conditions in the oven thereby to maintain the oven chamber temperature within a predetermined range to control heat transfer to the air stream in said third passage means.

Claim 3

The combination of claim 1 wherein said burner is in the oven chamber and said third passage means has an entrance at a level above the upper interior level of the oven chamber, and an exit at a level below the lower interior level of the oven chamber.

Claim 4

The combination of claim 1 wherein said burner is in the oven chamber and said third passage means extends downwardly adjacent the rear of the oven chamber and then forwardly beneath the oven chamber to conduct air to the front side of the oven.

Claim 5

The combination of claim 1 including a blower positioned to displace air downwardly and then forwardly in said third passage means, said oven chamber including a panel separating the oven interior from air flowing forwardly in said third passage, said burner extending openly in the oven chamber and proximate said panel.

Claim 6

In a heating appliance, the combination comprising a. an oven chamber and a combustible gas main burner extending in heating relation therewith, b. first passage means for conducting to the burner air flowing from an exterior intake, c. second passage means for conducting hot combustion products flowing to an exterior vent, d. third passage means for conducting an air stream into heat receiving relation with the oven chamber but at the exterior thereof during operation of the burner to heat the interior of the oven chamber, e. control means to control combustible gas delivery to the burner in response to temperature conditions in the oven thereby to maintain the oven chamber temperature within a predetermined range to control heat transfer to the air stream in said third passage means, f. a blower positioned to displace air downwardly and then forwardly in said third passage means, said oven chamber including a panel separating the oven interior from air flowing forwardly in said third passage, said burner extending openly in the oven chamber and proximate said panel, and g. the oven chamber containing a heat reflector located to reflect burner produced heat downwardly to said panel.

Claim 7

In a heating appliance, the combination comprising a. an oven chamber and a combustible gas main burner extending in heating relation therewith, b. first passage means for conducting to the burner air flowing from an exterior intake, c. second passage means for conducting hot combustion products flowing to an exterior vent, d. third passage means for conducting an air stream into heat receiving relation with the oven chamber but at the exterior thereof during operation of the burner to heat the interior of the oven chamber, e. control means to control combustible gas delivery to the burner in response to temperature conditions in the oven thereby to maintain the oven chamber temperature within a predetermined range to control heat transfer to the air stream in said third passage means, f. a blower positioned to displace air downwardly and then forwardly in said third passage means, said oven chamber including a panel separating the oven interior from air flowing forwardly in said third passage, said burner extending openly in the oven chamber and proximate said panel, and g. the oven chamber containing a heat reflector located to reflect burner produced heat downwardly to said panel.

Claim 8

The combination of claim 4 wherein said control means includes an element operable to energize said blower in response to heating of the oven interior to a temperature within said range.

Claim 9

In a heating appliance, the combination comprising a. an oven chamber and a combustible gas main burner extending in heating relation therewith, the chamber including a closure, b. first passage means for conducting to the burner air flowing from an exterior intake, c. second passage means for conducting hot combustion products flowing to an exterior vent, d. third passage means for conducting an air stream into heat receiving relation with the oven chamber but at the exterior thereof during operation of the burner to heat the interior of the oven chamber, and e. control means to control combustible gas delivery to the burner in response to temperature conditions in the oven thereby to maintain the oven chamber temperature within a predetermined range to control heat transfer to the air stream in said third passage means, f. a blower positioned to displace air downwardly and then forwardly in said third passage means, said oven chamber including a panel separating the oven interior from air flowing forwardly in said third passage, said burner extending openly in the oven chamber and proximate said panel, and g. there being a pilot burner and said control means including apparatus operable to effect decrease of gas supply to the pilot burner in response to opening of said closure.

Claim 10

In a heating appliance, the combination comprising a. an oven chamber and a combustible gas main burner extending in heating relation therewith, the chamber including a closure, b. first passage means for conducting to the burner air flowing from an exterior intake, c. second passage means for conducting hot combustion products flowing to an exterior vent, d. third passage means for conducting an air stream into heat receiving relation with the oven chamber but at the exterior thereof during operation of the burner to heat the interior of the oven chamber, and e. control means to control combustible gas delivery to the burner in response to temperature conditions in the oven thereby to maintain the oven chamber temperature within a predetermined range to control heat transfer to the air stream in said third passage means, f. a blower positioned to displace air downwardly and then forwardly in said third passage means, said oven chamber including a panel separating the oven interior from air flowing forwardly in said third passage, said burner extending openly in the oven chamber and proximate said panel, and g. there being a pilot burner and said control means including apparatus operable to effect decrease of gas supply to the pilot burner in response to opening of said closure.

Claim 11

The combination of claim 7 wherein said pilot burner is proximate the main burner and said apparatus includes a control unit operating connected with the closure to decrease the supply of gas to the pilot burner when the closure is open.

Claim 12

The combination of claim 6 including a range top extending over said oven and range burner means located at said top, there being a master switch connected in controlling relation with the blower, the switch having one position in which the blower is disabled, and another position in which operation of the blower is enabled, for control by said element.

Claim 13

In a heating appliance, the combination comprising a. an oven chamber and a combustible gas main burner extending in heating relation therewith, b. a first duct forming first passage means for conducting to the burner air flowing from an exterior intake, c. a second duct forming second passage means for conducting hot combustion products flowing to an exterior vent, d. third passage means for conducting an air stream into heat receiving relation with the oven chamber but at the exterior thereof during operation of the burner to heat the interior of the oven chamber, and e. control means to control combustible gas delivery to the burner in response to temperature conditions in the oven thereby to maintain the oven chamber temperature within a predetermined range to control heat transfer to the air stream in said third passage means, and f. the first duct projecting between the intake and the oven chamber, and the second duct extending in telescoping relation with said first

Claim 14

In a heating appliance, the combination comprising a. an oven chamber and a combustible gas main burner extending in heating relation therewith, b. a first duct forming first passage means for conducting to the burner air flowing from an exterior intake, c. a second duct forming second passage means for conducting hot combustion products flowing to an exterior vent, d. third passage means for conducting an air stream into heat receiving relation with the oven chamber but at the exterior thereof during operation of the burner to heat the interior of the oven chamber, and e. control means to control combustible gas delivery to the burner in response to temperature conditions in the oven thereby to maintain the oven chamber temperature within a predetermined range to control heat transfer to the air stream in said third passage means, and f. the first duct projecting between the intake and the oven chamber, and the second duct extending in telescoping relation with said first