Fuel and propellant composition for combustion tools
US-11034902-B2 · Jun 15, 2021 · US
Oxy fuel gas mixtures and methods for use
US11920097B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11920097-B2 |
| Application number | US-201816762966-A |
| Country | US |
| Kind code | B2 |
| Filing date | Nov 6, 2018 |
| Priority date | Nov 17, 2017 |
| Publication date | Mar 5, 2024 |
| Grant date | Mar 5, 2024 |
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- Title
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Abstract
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Fuel gas compositions for use in metal fabrication are provided comprising fuel gases comprising a base fuel gas mixed with from about 1% to less than 30% hydrogen.
First claim
Opening claim text (preview).
What is claimed is: 1. A method for heating a metal workpiece in a metal fabrication process, said method comprising: delivering a fuel gas mixture to a torch, the fuel gas mixture consisting essentially of: a 85-95% by volume natural gas; and from 5% to 15% hydrogen by volume; delivering oxygen to the fuel gas mixture to form an oxy-fuel gas mixture; igniting the oxy-fuel gas mixture to form a flame; contacting the flame to the metal workpiece at a predetermined location on the metal workpiece; and heating the metal workpiece. 2. The method of claim 1 wherein said metal fabrication process is selected from the group consisting of cutting, welding, flame heating, soldering and brazing. 3. The method of claim 2 wherein said metal fabrication process is welding. 4. A fuel gas mixture for an oxy fueled metal fabrication process, wherein said metal fabrication process is selected from cutting, welding, flame heating, soldering and brazing, said mixture consisting essentially of: 85-95% natural gas by volume; and 5-15% hydrogen by volume. 5. The fuel gas mixture of claim 4 wherein said metal fabrication process is welding.
Assignees
Inventors
Classifications
- C10L3/02Primary
Compositions containing acetylene · CPC title
Natural gas; Synthetic natural gas obtained by processes not covered by C10G, C10K3/02 or C10K3/04 {(liquefying by pressure and cold treatment F25J)} · CPC title
Hydrogen · CPC title
for small applications, such as tools, lamp oil, welding · CPC title
Mixing, stirring of fuel components · CPC title
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Frequently asked questions
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- What does patent US11920097B2 cover?
- Fuel gas compositions for use in metal fabrication are provided comprising fuel gases comprising a base fuel gas mixed with from about 1% to less than 30% hydrogen.
- Who is the assignee on this patent?
- Praxair Technology Inc
- What technology area does this patent fall under?
- Primary CPC classification C10L3/02. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Mar 05 2024 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 4 related publications on this page (citations in our corpus or others sharing the same primary CPC).