Igniter for thermal lance

Details Igniter for thermal lance Igniter for thermal lance

1989-03-20

1990-04-10

Dority, Jr., Carroll B.

Combustion

Frictional, chemical or percussive type igniter

431269, 110349, 266 48, 266225, 102205, F23Q 100

Patent

active

049156187

ABSTRACT:
An igniter is provided for slip-on attachment to the free end of a thermal lance. The igniter includes a slip-on cartridge having a frictional support cap. A priming composition (12) and a primer (13) located within the cartridge. The primer (13) is designed as a friction primer and includes a spiral wire friction element within the primer and connected to the cap. Under the pressure of oxygen introduced into the lance, the cap is forced outwardly with the wire friction element activating the primer to create ignition of the priming composition (12), and the operation of the thermal lance.

REFERENCES:
patent: 2391823 (1945-12-01), Edmands
patent: 2634196 (1953-04-01), Pennecot
patent: 3507230 (1970-04-01), Seib

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