Pilot igniter torch with cutoff preheat valves

Details Pilot igniter torch with cutoff preheat valves Pilot igniter torch with cutoff preheat valves

1993-04-23

1995-02-21

Kashnikow, Andres

Fluid sprinkling, spraying, and diffusing

Combining of separately supplied fluids

And valving means controlling flow for combining

2394162, 239583, 251100, F23D 1432, F23D 1442

Patent

active

053908554

ABSTRACT:
A cutting torch allows the preheat oxygen and fuel valves to remain in a preset position while the torch is off. The cutting torch has preheat oxygen and fuel cutoff valves mounted in line with the adjusting valves. The cutoff valves are both operated linearly, each having an axially moving plunger. An actuator simultaneously moves the cutoff valves between opened and closed positions. The actuator has a locking device to lock them in the opened and closed positions. A pilot flame igniter utilizes a piezoelectric crystal and a pilot fuel valve positioned side by side with parallel axes. An igniter actuator in a single stroke opens the pilot fuel valve and causes an electrical spark to ignite the pilot flame.

REFERENCES:
patent: 4419 (1846-03-01), Clarke
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patent: 2095747 (1937-10-01), Jacobsson
patent: 2473465 (1949-06-01), Betz
patent: 3022015 (1962-02-01), Barch
patent: 3220459 (1965-11-01), Wilson
patent: 3253788 (1966-05-01), McHugh et al.
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patent: 3280881 (1966-10-01), Hach
patent: 3431058 (1969-03-01), Hufford
patent: 3661168 (1972-05-01), McGeachy
patent: 4095710 (1937-10-01), Offutt et al.
patent: 4540677 (1986-02-01), Roxton et al.
patent: 4806096 (1989-02-01), Kobayashi
patent: 4818220 (1989-04-01), Kobayashi

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