Torch with integral flashback arrestor and thermal shut-off device

a technology of thermal shut-off device and torch, which is applied in the direction of valve operating means/releasing devices, combustion types, lighting and heating apparatus, etc., can solve the problems of affecting the operation of the torch itself, and affecting the operation of the torch
US20190323709A1Inactive Publication Date: 2019-10-24VICTOR EQUIP
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Patent Information

Authority / Receiving Office
US · United States
Current Assignee / Owner
VICTOR EQUIP
Publication Date
2019-10-24
Estimated Expiration
Not applicable · inactive patent

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Abstract

A torch with integral flashback arrestor and thermal shut-off device is provided. In one approach, a torch body includes a passageway of the torch body, and a cartridge assembly disposed within the passageway. The cartridge assembly may include at least one of: a resettable pressure-sensitive device, and a thermal shut-off device, wherein the pressure-sensitive device and the thermal shut-off device are modifiable from a first configuration to a second configuration in response to a pressure or temperature gradient in the torch body, and wherein the second configuration restricts flow through the passageway. The cartridge may further include a check valve disposed along the passageway, for example, within a bore of a bushing, or within a retainer coupled to the torch body at an inlet of the passageway.
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Description

CROSS-REFERENCE TO RELATED APPLICATIONS

[0001] This application is a continuation of International Application No. PCT / US2016 / 069392, filed on Dec. 30, 2016, the entire contents of which is hereby incorporated by reference.BACKGROUND OF THE DISCLOSUREField of the Disclosure

[0002] The present disclosure relates to cutting, welding, and heating devices and, more particularly, to cutting torches with flashback arrestors.Discussion of Related Art

[0003] Oxygen-fuel cutting, welding, or heating devices discharge fuel gas and oxygen from a nozzle for cutting, welding, or heating purposes. A typical torch includes a control body for connecting to separate fuel gas and oxygen supplies, tubes for supplying the oxygen and fuel gas from the control body to a head, and a cutting tip mounted to the head. The cutting tip receives the fuel gas and oxygen from the head and discharges these gases from its nozzle. More specifically, the head includes an interior surface extending around and defining a hea...

Claims

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