Gas burner structure

Claim 2

In a gas burner having a chamber defined by a bottom having a fuel gas inlet, a top and a sIde wall apertured to provide burner ports and flash-tube-charge-and ignition porting, improved structure which comprises, said inlet having a location which is off-center with respect to said bottom and top, means forming a baffle within said chamber having portions positioned and contoured to substantially equalize the flow to said burner ports of gas issuing from said off-center location, said portions being effective to deflect gas en route from said inlet to said burner ports into a plural-direction, relatively long path, said baffle being apertured to provide a bypass positioned to issue gas in a relatively short path to said flash-tube-chargeand ignition porting.

Claim 3

In a gas burner having a chamber defined by a bottom having a fuel gas inlet, a top and a side wall apertured to provide burner ports and flash-tube-charge-and ignition porting, improved structure which comprises, said inlet having a location which is off-center with respect to said bottom and top, means forming a baffle within said chamber having portions positioned and contoured to substantially equalize the flow to said burner ports of gas issuing from said off-center location, said portions being effective to deflect gas en route from said inlet to said burner ports into a plural-direction, relatively long path, said baffle being provided with a bypass positioned to issue gas in a relatively short path to said flash-tube-charge-and ignition porting, said bypass comprising an apertured portion of said baffle aligned with said porting.

Claim 4

In a gas burner having a chamber defined by a bottom having a fuel gas inlet, a top and a side wall apertured to provide burner ports and flash-tube-charge-and ignition porting, improved structure which comprises, said inlet having a location which is off-center with respect to said bottom and top, means forming a baffle within said chamber having portions positioned and contoured to substantially equalize the flow to said burner ports of gas issuing from said off-center location, said portions being effective to deflect gas en route from said inlet to said burner ports into a plural-direction, relatively long path, said baffle being provided with a bypass positioned to issue gas in a relatively short path to said flash-tube-charge-and ignition porting, said bypass comprising an apertured portion of said baffle aligned with said porting.

Claim 5

The structure defined in claim 2 wherein said apertured portion has an effective area greater than that of said porting.

Claim 6

The structure defined in claim 2 wherein the distance between said apertured portion and porting is less than a cross dimension of said apertured portion.

Claim 7

The structure defined in claim 2 wherein said inlet, apertured portion, and porting have portions which lie on a common vertical plane.

Claim 8

The structure defined in claim 2 and including in addition means defining a lip positioned above said apertured portion and extending toward said flash-tube-charge-and ignition porting to direct gas issuing from said apertured portion toward said porting.

Claim 9

The structure defined in claim 6 wherein said lip comprises a portion of said baffle.

Claim 10

In a gas burner having a chamber defined by a bottom having a fuel gas inlet, a top and a side wall apertured to provide burner ports and flash-tube-charge-and ignition porting, improved structure which comprises, said inlet having a location which is off-center with respect to said bottom and top, means forming a baffle within said chamber having portions positioned and contoured to substantially equalize the flow to said burner ports of gas issuing from said off-center location, said portions being effective to deflect gas en route from said inlet to said burner ports into a plural-direction, relatively long path, said baffle being provided with a bypass positioned to issue gas in a relatively short path to said flash-tube-charge-and ignition porting, said baffle comprising an inverted dish-shaped element having a peripheral edge engaged against said bottom and a wall which extends upwardly from said bottom and toward the center of said chamber, said baffle portions comprising one portion of said wall above and aligned with said inlet, other portions of said wall extending around the chamber interior from said first portion, and a central portion of said wall apertured to issue gas toward said burner top.

Claim 11

In a gas burner having a chamber defined by a bottom having a fuel gas inlet, a top and a side wall apertured to provide burner ports and flash-tube-charge-and ignition porting, improved structure which comprises, said inlet having a location which is off-center with respect to said bottom and top, means forming a baffle within said chamber having portions positioned and contoured to substantially equalize the flow to said burner ports of gas issuing from said off-center location, said portions being effective to deflect gas en route from said inlet to said burner ports into a plural-direction, relatively long path, said baffle being provided with a bypass positioned to issue gas in a relatively short path to said flash-tube-charge-and ignition porting, said baffle comprising an inverted dish-shaped element having a peripheral edge engaged against said bottom and a wall which extends upwardly from said bottom and toward the center of said chamber, said baffle portions comprising one portion of said wall above and aligned with said inlet, other portions of said wall extending around the chamber interior from said first portion, and a central portion of said wall apertured to issue gas toward said burner top.

Claim 12

The structure defined in claim 8 wherein said bypass comprises an opening in an upwardly extending portion of said wall aligned with said flash-tube-charge-and ignition porting.

Claim 13

The structure defined in claim 9 wherein the axes of said inlet and porting are respectively generally vertical and generally horizontal, said opening being positioned between said inlet and porting and having an axis angleD to the aforesaid axes.

Claim 14

The structure defined in claim 8 wherein said central portion has a single aperture substantially centered in said chamber, said aperture having an effective area greater than that of said inlet.

Claim 15

The structure defined in claim 11 wherein said aperture is completely out of vertical alignment with said inlet.

Claim 16

The structure defined in claim 11 wherein small proportions of the areas of said aperture and inlet are in vertical alignment.

Claim 17

The structure defined in claim 8 wherein said element has a flange at said peripheral edge clamped between portions of said side wall and bottom.

Claim 18

The structure defined in claim 14 wherein said portion of said side wall comprises an outward shoulder, the bottom of which engages said flange.

Claim 19

The structure defined in claim 8 wherein said wall of said dish-shaped element has one region which extends upwardly from said peripheral edge and toward the center of said chamber generally along the slant height of a cone, and another region adjoining said one region and extending generally horizontally toward the center of said chamber, said other region being so apertured.

Claim 20

The structure defined in claim 16 wherein said bypass comprises an opening in said one region of said wall positioned closely adjacent said flash-tube-charge-and ignition porting.

Claim 21

The structure defined in claim 17 wherein said other region has a single aperture substantially centered in said chamber and having a cross dimension greater than that of said inlet, said peripheral edge having an outward flange clamped between said bottom and an outward shoulder adjacent a lower portion of said side wall.

Claim 22

The structure defined in claim 8 wherein said bypass comprises an opening in said one portion of said wall aligned with said flash-tube-charge-and ignition porting, said one wall portion adjacent the upper edge of said opening being turned outwardly to define a lip projecting toward said porting to direct gas issuing from said opening toward said porting.

Claim 23

The structure defined in claim 11 wherein said chamber bottom and top have closed centers.

Claim 24

The structure defined in claim 11 and including in addition a secondary air duct extending vertically through central portions of said bottom and top, said duct passing centrally through said aperture.