Ignition device for exothermic welding, mold for exothermic welding for the ignition device, and apparatus for exothermic welding comprising such a mold and such an ignition device

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United States of America Patent

PATENT NO 9764419
APP PUB NO 20150041520A1
SERIAL NO

14387003

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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The present invention relates to an ignition device for exothermic welding comprising an electrically conductive metal bushing (1) that can house a pellet of a first welding material (4) in electrical contact with the inner wall of an inner chamber (1c) of the bushing (1), provided with an electrically insulating cap (2) and a bottom base (1b) with an opening (1d) through which the first welding material (4) falls in an incandescent state onto a second welding material (4a) arranged in a weld mold (7) when an exothermic reaction has been triggered in the first welding material (4); an electrode (5) that goes through the cap (2) of the metal bushing (1) and comprises a top contact (5a) connectable to a power output (24) of a voltage generator and a bottom contact in the form of a filament (5b) that can be in electrical contact with the pellet of the first welding material (4), the filament (5b) being made of a material having a melting temperature greater than the ignition temperature of the welding material (4); as well as a contact-assuring element (3) which is guided into the inner chamber (1c) between the bottom base (1b) and the pellet of the first welding material (4).

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Patent Owner(s)

Patent OwnerAddress
APLICACIONES TECNOLOGICAS S A46980 PATERNA VALENCIA

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Pomar, Garcia Carlos Paterna, ES 2 3
Pomar, Pedredo Veronica Paterna, ES 1 3

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