Exothermic cutting torch
AssigneeEdna Corporation
InventorsPatsie C. Campana, Patsie C. Campana, Jr.
Life of this patent
Estimating the term…
Abstract
An exothermic cutting torch includes a first cylindrical member receiving a second member therein. The second member includes radially extending portions formed by axially extending grooves. A first passage having plural passage portions is defined between the first and second members for conveying an oxidizing gas from a supply end to a combustion end of the cutting torch. Each of the radially extending portions defines a second passage portion also for conveying oxidizing gas to the combustion end. The second member engages an inner peripheral portion of the first member as a result of a stretch reducing operation to fuse the members together. A third passage may also be defined along the central axis of the torch if desired.
Claims9
An exothermic cutting torch comprising:
- a generally cylindrical first member;
- and
- a thin-walled second member received in said first member and being substantially axially coextensive therewith, said second member having at least two lobes wherein each lobe is defined by first and second radial portions that are spaced apart at an inner periphery of the first member and as the portions extend radially inward to a central region merge together into abutting engagement, said second member defining a first passage between said first and second members, and further defining a second passage encompassed by said radial portions.
A cutting torch for cutting through materials comprising:
- a first generally cylindrical member adapted to receive an associated supply of oxygen at one end and react with the oxygen at the other end;
- a second member received in the first member and being substantially axially coextensive therewith, the second member having at least first and second lobes each defined by radial portions that are spaced at an outer radial area by circumferential portions which engage the inner periphery of the first member and merge toward one another into abutting engagement at a central region, the contiguous radial portions of adjacent lobes defining first passages with the first member for permitting the oxygen to flow from the first end to the second end, and the radial portions of each lobe defining enclosed second passages that also permit the oxygen to flow from the first end to the second end.
Dependencies are inferred from the claim text.