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US 4,062,485 AGranted
Exothermic welding device
OwnerLeonard M. Anderseninventor
Life of this patent
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Abstract
Exothermic welding device for welding to a surface underwater includes a Thermit charge surrounded by a movable inner casing abutting a plate. The plate includes magnetic or other means for attaching the device to the surface to be welded. Urging means force the Thermit melt through the surface. The urging means disclosed are a weight, spring, or pressure system arrangement. An outer housing surrounds the inner housing and urging means, and joins the plate. The device may be used for underhand or overhead welding, or to a vertical surface.
Claims15
Apparatus for exothermic welding to a surface comprising:
- a plate adapted to be positioned substantially parallel to and contiguous with said surface;
- a casing disposed proximate said plate;
- a exothermic mixture disposed within said casing;
- igniting means, mounted proximate said mixture, for igniting said exothermic mixture;
- and
- urging means for urging said casing through said plate and into said surface after said exothermic mixture begins to react.
3 more elements
Dependencies are inferred from the claim text.