Handheld welding torch apparatus

Abstract

A handheld welding torch apparatus for welding in confined areas includes a gas tank having a handle portion and an extension portion. Each of the handle portion and the extension portion is cylindrical. A valve assembly is coupled to the gas tank and comprises a tank receiver, a tube stem, a valve housing, and a control valve. The tube stem is coupled to the tank receiver. The tube stem is in fluid communication with the gas tank when the tank receiver is engaged with the extension portion. The valve housing is coupled to, and in fluid communication with, the tube stem. The control valve is coupled within, and in fluid communication with, the valve housing. A tube neck is coupled to, and in fluid communication with, the control valve. A welding tip is coupled to the tube neck.

Claims

1. A handheld welding torch apparatus comprising: a gas tank having a handle portion and an extension portion in fluid communication with the handle portion, each of the handle portion and the extension portion being cylindrical, a longitudinal axis of the extension portion being perpendicular to a longitudinal axis of the handle portion, s aid extension portion being centered between longitudinally opposite ends of s aid handle portion; a valve assembly coupled to the gas tank, the valve assembly comprising: a tank receiver coupled to the gas tank, the tank receiver selectively receiving a distal end of the extension portion; a tribe stem coupled to the tank receiver, the tube stem being in fluid communication with the gas tank when the tank receiver is engaged with the extension portion; a valve housing coupled to the tube stem, the valve housing being in fluid communication with the tube stem; and a control valve coupled within the valve housing, the control valve being in fluid communication with the valve housing; a tube neck coupled to the control valve, the tube neck being in fluid communication with the control valve; and a welding tip coupled to the tube neck.

2. The handheld welding torch apparatus of claim 1 further comprising the diameter of the extension portion being less than the diameter of the handle portion.

3. The handheld welding torch apparatus of claim 1 further comprising the distal end of the extension portion having a threaded outer collar and an inner nipple portion; the tank receiver threadably receiving the outer collar of the distal end; the tube stem selectively engaging the inner nipple portion.

4. The handheld welding torch apparatus of claim 1 further comprising the valve housing having a bypass channel in fluid communication with the tube stem and a valve aperture extending from an outer face through to the bypass channel, the control valve having a valve stem threadably engaged within the valve aperture and a valve knob coupled to the valve stem.

5. The handheld welding torch apparatus of claim 4 further comprising the valve stem having a threaded portion and a smooth blockage portion the smooth blockage portion having a pointed tip.

6. The handheld welding torch apparatus of claim 5 further comprising a stop ring threadably engaged with the threaded portion of the valve stem.

7. The handheld welding torch apparatus of claim 1 further comprising the tube neck forming a rounded angle between 135° and 180°.

8. The handheld welding torch apparatus of claim 1 further comprising the welding tip having a fixed portion and a rotatable portion rotatably coupled to the fixed portion.

9. The handheld welding torch apparatus of claim 8 further comprising the fixed portion having a faceted section and a tapered section, the rotatable portion being coupled to the tapered section.

10. A handheld welding torch apparatus comprising: a gas tank having a handle portion and an extension portion in fluid communication with the handle portion, each of the handle portion and the extension portion being cylindrical, a longitudinal axis of the extension portion being perpendicular to a longitudinal axis of the handle portion, said extension portion being centered between longitudinally opposite ends of s aid handle portion, the diameter of the extension portion being less than the diameter of the handle portion, a distal end of the extension portion having a threaded outer collar and an inner nipple portion; a valve assembly coupled to the gas tank, the valve assembly comprising: a tank receiver coupled to the gas tank, the tank receiver threadably receiving the outer collar of the distal end; a tube stem coupled to the tank receiver, the tube stem selectively engaging the inner nipple portion of the distal end, the tube stem being in fluid communication with the gas tank when the tank receiver is engaged with the extension portion; a valve housing coupled to the tube stem, the valve housing having a bypass channel in fluid communication with the tube stem and a valve aperture extending from an outer face through to the bypass channel; a control valve coupled within the valve housing, the control valve being in fluid communication with the valve housing, the control valve having a valve stem threadably engaged within the valve aperture and a valve knob coupled to the valve stem, the valve stem having a threaded portion and a smooth blockage portion, the smooth blockage portion having a pointed tip; and a stop ring threadably engaged with the threaded portion of the valve stem; a tube neck coupled to the control valve, the tube neck being in fluid communication with the control valve, the tube neck forming a rounded angle between 135° and 180°; and a welding tip coupled to the tube neck, the welding tip having a fixed portion and a rotatable portion rotatably coupled to the fixed portion, the fixed portion having a faceted section and a tapered section, the rotatable portion being coupled to the tapered section.

Description

BRIEF DESCRIPTION OF SEVERAL VIEWS OF THE DRAWING(S)

(1) The disclosure will be better understood and objects other than those set forth above will become apparent when consideration is given to the following detailed description thereof. Such description makes reference to the annexed drawings wherein:

(2) FIG. 1 is an isometric view of a handheld welding torch apparatus according to an embodiment of the disclosure.

(3) FIG. 2 is a side elevation view of an embodiment of the disclosure.

(4) FIG. 3 is a bottom plan view of an embodiment of the disclosure.

(5) FIG. 4 is a cross-sectional view of an embodiment of the disclosure along the line 4-4 of FIG. 3.

(6) FIG. 5 is an in-use view of an embodiment of the disclosure.

DETAILED DESCRIPTION OF THE INVENTION

(7) With reference now to the drawings, and in particular to FIGS. 1 through 5 thereof, a new welding device embodying the principles and concepts of an embodiment of the disclosure and generally designated by the reference numeral 10 will be described.

(8) As best illustrated in FIGS. 1 through 5, the handheld welding torch apparatus 10 generally comprises a gas tank 12 having a handle portion 14 and an extension portion 16. Each of the handle portion 14 and the extension portion 16 may be cylindrical. The extension portion 16 is perpendicular to the handle portion 14. The diameter of the extension portion 16 is less than the diameter of the handle portion 14 and both are dimensioned to be held within a user's hand with the extension portion 16 between the user's fingers as shown in FIG. 5. A distal end 17 of the extension portion 16 has a threaded outer collar 18 and an inner nipple portion 20.

(9) A valve assembly 22 is coupled to the gas tank 12. The valve assembly 22 comprises a tank receiver 24, a tube stem 26, a valve housing 28, a control valve 30, and a stop ring 32. The tank receiver 24 is coupled to the gas tank 12 with the tank receiver 24 threadably receiving the outer collar 18 of the distal end. The tube stem 26 is coupled to the tank receiver 24. The tube stem 26 selectively engages the inner nipple portion 20 of the distal end to be in fluid communication with the gas tank 12 when the tank receiver 24 is engaged with the extension portion 16.

(10) The valve housing 28 is coupled to the tube stem 26. The valve housing 28 has a bypass channel 34 in fluid communication with the tube stem 26 and a valve aperture 36 extending from an outer face 38 through to the bypass channel 34. The control valve 30 is coupled within the valve housing 28 and is in fluid communication with the valve housing 28. The control valve 30 has a valve stem 40 threadably engaged within the valve aperture 36 and a valve knob 42 coupled to the valve stem 40. The valve knob 42 may have a knurled grip face 44. The valve stem 40 may have a threaded portion 46 and a smooth blockage portion 48. The smooth blockage portion 48 may have a pointed tip 50 to engage a pointed receiver end 52 of the valve aperture 36 for full closure of the bypass channel 34. The stop ring 32 is threadably engaged with the threaded portion 46 of the valve stem to lock the control valve 30 in a desired position.

(11) A tube neck 54 is coupled to the control valve 30. The tube neck 54 is in fluid communication with bypass channel 34 of the control valve 30. The tube neck 54 may form a rounded angle between 135° and 180°. A welding tip 56 is coupled to the tube neck 54. The welding tip 56 may have a fixed portion 58 and a rotatable portion 60 rotatably coupled to the fixed portion 58. The fixed portion 58 has a faceted section 62 and a tapered section 64. The rotatable portion 60 is coupled to the tapered section 64.

(12) In use, the user secures the gas tank 12 and adjusts the control valve 30 to the desired output and lights a flame coming from the welding tip 56. The user then adjusts the rotatable portion 60 of the welding tip to achieve the desired flame before using the apparatus 10 to create welds in difficult to reach places.

(13) With respect to the above description then, it is to be realized that the optimum dimensional relationships for the parts of an embodiment enabled by the disclosure, to include variations in size, materials, shape, form, function and manner of operation, assembly and use, are deemed readily apparent and obvious to one skilled in the art, and all equivalent relationships to those illustrated in the drawings and described in the specification are intended to be encompassed by an embodiment of the disclosure.

(14) Therefore, the foregoing is considered as illustrative only of the principles of the disclosure. Further, since numerous modifications and changes will readily occur to those skilled in the art, it is not desired to limit the disclosure to the exact construction and operation shown and described, and accordingly, all suitable modifications and equivalents may be resorted to, falling within the scope of the disclosure. In this patent document, the word “comprising” is used in its non-limiting sense to mean that items following the word are included, but items not specifically mentioned are not excluded. A reference to an element by the indefinite article “a” does not exclude the possibility that more than one of the element is present, unless the context clearly requires that there be only one of the elements.