Trigger devices for exothermic welds
US-2019101288-A1 · Apr 4, 2019 · US
US10583522B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10583522-B2 |
| Application number | US-201715613078-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jun 2, 2017 |
| Priority date | Jun 3, 2016 |
| Publication date | Mar 10, 2020 |
| Grant date | Mar 10, 2020 |
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A tool assembly for performing operations in confined spaces, the tool assembly includes a telescoping pole having a proximal end and a distal end. The telescoping pole is capable of extending between a retracted position and an extended position. A working tool is connected to the distal end of the telescoping pole, and a control unit is connected to the proximal end of the telescoping pole. A flexible cable extending through the telescoping pole electrically connects the working tool to the control unit.
Opening claim text (preview).
What is claimed is: 1. A tool assembly for performing operations in confined spaces, the tool assembly comprising: a telescoping pole including a proximal end and a distal end and capable of extending between a retracted position and an extended position; an exothermic welding assembly, the exothermic welding assembly mounted at the distal end of the pole and comprising an exothermic mold assembly and ignitor box, wherein the exothermic mold assembly comprises: an upper portion forming a crucible and having an orifice for receiving one end of an ignitor stick; and a lower portion having a lower surface for contacting a surface of a structure to be welded, a notch in the lower surface for receiving a cable to be welded to the structure, and a clip positioned in vicinity of the notch for holding the cable during welding; a control unit connected to the proximal end of the telescoping pole; and a flexible cable extending through the telescoping pole from the exothermic mold assembly to the control unit. 2. The tool assembly as recited in claim 1 , wherein the control unit comprises a remote ignition unit. 3. The tool assembly as recited in claim 2 , wherein the remote ignition unit comprises a remote switch. 4. The tool assembly as recited in claim 2 , wherein the remote ignition unit comprises a programmable ignition unit capable of being programmed to set an ignition delay timer.
Alumino-thermic welding · CPC title
telescopic; extensible; sectional · CPC title
Tubes · CPC title
for positioning the molten material, e.g. confining it to a desired area · CPC title
involving an exothermic reaction of the interposed material · CPC title
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