High flow gas saver

Details High flow gas saver High flow gas saver

2007-03-02

2009-08-18

Kastler, Scott (Department: 1793)

Metallurgical apparatus

Means for cutting solid metal with heat, e.g., blowpipes

Reexamination Certificate

active

07575710

ABSTRACT:
A gas flow control system for a gas fuelled torch including four gas passages controlled by four on-off valves and a control device. The control device can be used to actuate the valves in different combinations, thereby shutting off both fuel and oxygen flows, or allowing a full rate of fuel and oxygen flows for operational performances, or allowing only a restricted rate of fuel and oxygen flows for a pilot flame of the torch.

REFERENCES:
patent: 2043982 (1936-06-01), Bruneau
patent: 3161226 (1964-12-01), Stoneberg et al.
patent: 3299939 (1967-01-01), Marra, Sr.
patent: 4818220 (1989-04-01), Kobayashi
patent: 5383650 (1995-01-01), Bissonnette
patent: 5390855 (1995-02-01), Mims et al.
patent: 5470227 (1995-11-01), Mims et al.
patent: 5792281 (1998-08-01), Diehl
patent: 6451245 (2002-09-01), Pisot et al.

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