GAS POWERED TORCH

• US 20200132298A1
• Filed: 10/28/2019
• Published: 04/30/2020
• Est. Priority Date: 10/26/2018
• Status: Active Grant

• Current Assignee: Robert W. Healey
• Original Assignee: Robert W. Healey
• Inventors: HEALEY, ROBERT W.
• Granted Patent: US 11,655,977 B2
• Time in Patent Office: Days
• CPC Class Codes: A47J 37/079 Charcoal igniting devices
• CPC Class Codes: F23D 14/38 Torches, e.g. for brazing or heating nozzles F23D14/48
• CPC Class Codes: F23D 14/465 for torches F23D14/52 takes precedence
• CPC Class Codes: F23Q 3/008 Structurally associated with fluid-fuel burners

Abstract

Various embodiments utilize a novel approach to igniting the natural gas flame that is emitted from the end of the torch. According to one embodiment a rotary diverter within the ignition bell of the GrillGun is used to shunt a portion of the higher velocity gas flow to an area in the bell where the ignition spark is out of the direct burning gas stream. According to another embodiment the ignition bell has a plate that largely covers its open end that reduces the length of the flame that is emitted and focuses it. Still another embodiment has a check valve that operates to stop the flow of gas to the gas conduit when the GrillGun is dropped or tipped over or liquid propane is otherwise presented into the check valve by any other means.

Claims

1. A gas torch, comprising:

(a) an ignition bell, said ignition bell having a closed end and an open end;

(b) a gas conduit that passes into said ignition bell through said closed end and that terminates in a nozzle inside of said ignition bell, said gas conduit being positionable to be in fluid communication with a compressed source of gas, said nozzle for emitting a gas under pressure inside of said bell while in operation;

(c) an igniter within said ignition bell, said igniter situated proximate to said nozzle but outside of a path of said emitted gas;

(d) a diverter inside of said ignition bell, said diverter

positionable to be placed in a path of gas emitted from said nozzle when the gas is being ignited by said igniter, and,

positionable to be out of the path of the emitted gas after the gas has been ignited; and

(e) a gas connector positionable to be in fluid communication with said gas conduit and with said compressed source of gas.

2. The gas torch according to claim 1, wherein said diverter is

rotatable to be placed in a path of gas emitted from said nozzle when the gas is being ignited by said igniter, and,

rotatable to be out of the path of the emitted gas after the gas has been ignited.

3. The gas torch according to claim 2, wherein said diverter is in mechanical communication through said closed end of said ignition bell with a trigger mechanism remote from said ignition bell, said trigger mechanism at least for urging said diverter to rotate into the path of gas the gas is being ignited by the igniter.

4. The gas torch according to claim 2, further comprising:

(f) a gas shut off valve situated along said gas conduit, said gas shutoff valve operable to permit or restrict a flow of gas through said conduit when said conduit is placed in fluid communication with a source of gas.

5. The gas torch according to claim 1, further comprising:

(f) a fire bell reducer, said fire bell reducer comprising a plate with an aperture therethrough,

 

wherein said plate is affixed to said ignition bell proximate to said open end and covers said open end of said ignition bell,

 

wherein said aperture is smaller than open end of said ignition bell, thereby reducing an amount of gas escaping from said ignition bell when the torch is being operated.

6. The gas torch according to claim 5, wherein said fire bell reducer is affixed to said open end of said ignition bell at a plurality of space apart locations such that a plurality of openings between said fire bell reducer and an inner wall of said ignition bell.

7. The torch according to claim 4, wherein said gas connector and said gas shut off valve are connected by a handle tube, further comprising:

(g) a check valve assembly, said check valve assembly comprising;

(i) a check valve tube situated within said handle tube, said check valve tube having a smaller diameter than said handle tube, said check valve tube having an upper end and a lower end, said upper end of said check valve tube having an aperture therethrough, said lower end of said check valve tube terming in a tube flange situated outside of handle tube and within said gas connector, said tube flange having a larger diameter than an inner diameter of said handle tube, and

(ii) a check valve ball situated within said check valve tube,

 

said check valve ball having a diameter larger than said aperture at said upper end of said check valve tube, and

 

said check valve ball having a weight sufficient to keep it away from said aperture at said upper end of said check valve unless said handle tube is tilted away from a vertical orientation.

8. The gas torch according to claim 1, wherein said ignitor is an electrode.