Gas igniter

Claim 2

An igniter for combustible gas emerging from a gas burner comprising an ignition chamber for the gas, gas line means having one end in proximity to the gas emerging from the burner and a second end terminating in said chamber, means for drawing the emerging gas from the burner through the line into the chamber, and means operated in a predetermined time sequence with said drawing means for igniting gas drawn into the chamber, said line means being coupled with said chamber and burner for feeding ignited gas from the chamber back to the burner so that an ignited wave front propagates via the line means back to the burner to ignite gas emerging from the burner.

Claim 3

The igniter of claim 1 wherein said drawing means includes means for forcing the ignited gas out of the chamber after activation of the ignition means.

Claim 4

The igniter of claim 2 wherein said means for drawing further includes means for drawing ambient air out of the gas line and chamber while drawing the gas through the gas line and chamber.

Claim 5

The igniter of claim 3 wherein said drawing means includes: an expansible chamber, and means for expanding the volume of the expansible chamber to draw the gas into the ignition chamber and for reducing the volume of the expansible chamber to force the ignited gas out of the ignition chamber.

Claim 6

The igniter of claim 4 wherein said ignition means includes means for generating a first spark within the ignition chamber after the expansible chamber is opened and for generating a Second spark within the ignition chamber as the expansible chamber is being closed.

Claim 7

The igniter of claim 5 further including coaxial actuators for said igniter means and expansible chambers.

Claim 8

The igniter of claim 4 wherein said igniting means includes: a rotatable shaft, spark generating means in said ignition chamber, and dead band means between said shaft and spark generating means for enabling a spark to be generated by said spark generating means only in response to the shaft being rotated through a predetermined angle.

Claim 9

The ignite of claim 7 wherein said expanding means includes a flexible arm rotatable with said shaft, and said expansible chamber includes hook means for receiving said arm and enabling the arm to be partially retracted from it.

Claim 10

The igniter of claim 8 further including a one-way clutch between said shaft and spark generating means.

Claim 11

The igniter of claim 8 wherein said dead band means includes a slot in said shaft and a torsion spring having one end fixedly mounted in a root of said slot and another end fixedly mounted to a drive means for said spark generating means, said spring being rotatable in said slot by said predetermined angle.

Claim 12

The igniter of claim 7 wherein said dead band means includes a slot in said shaft and a torsion spring having one end fixedly mounted in a root of said slot and another end fixedly mounted to a drive means for said spark generating means, said spring being rotatable in said slot by said predetermined angle.

Claim 13

The igniter of claim 1 wherein the one end of said gas line is outwardly flared.

Claim 14

A grill for heating and cooking with combustible gas comprising a burner for the gas, said burner having apertures for enabling gas to be combusted in the atmosphere, means for mounting noncombustible heat-retaining bricks in proximity to said burner, means for supporting an object to be cooked in proximity to said mounting means, an ignition chamber for the gas, a gas line having one end in proximity to apertures of the gas burner and a second end terminating in said chamber, means for drawing gas escaping from the burner apertures through the line into the chamber, and means operated in predetermined time sequence with said drawing means for igniting gas drawn into the chamber.

Claim 15

A grill for heating and cooking with combustible gas comprising a burner for the gas, said burner having apertures for enabling gas to be combusted in the atmosphere, means for mounting noncombustible heat-retaining bricks in proximity to said burner, means for supporting an object to be cooked in proximity to said mounting means, an ignition chamber for the gas, a gas line having one end in proximity to apertures of the gas burner and a second end terminating in said chamber, means for drawing gas escaping from the burner apertures through the line into the chamber, and means operated in predetermined time sequence with said drawing means for igniting gas drawn into the chamber.

Claim 16

The grill of claim 13 wherein said drawing means includes means for forcing the ignited gas out of the chamber after activation of the ignition means.

Claim 17

The grill of claim 14 wherein said means for drawing further includes means for drawing ambient air out of the gas line and chamber while drawing the gas through the gas line and chamber.