Gas cylinder warmer with variable wattage self regulating...

Details Gas cylinder warmer with variable wattage self regulating... Gas cylinder warmer with variable wattage self regulating...

2006-03-21

2006-03-21

Pelham, Joseph (Department: 3742)

Electric heating

Heating devices

Combined with container, enclosure, or support for material...

C219S521000, C219S529000, C219S535000, C219S539000

Reexamination Certificate

active

07015425

ABSTRACT:
A gas cylinder includes a cylindrically-shaped main wall having a liner, a facing and insulation located between the liner and the facing. First and second electric, self-regulating heating elements are positioned between the liner and the insulation. The liner is provided with first and second pockets and the first and second heating elements are located within the pockets. The first heating element has a higher wattage density than the second heating element and the first heating element is located below the second heating element. A sealed conduit enclosure contains a terminal block connecting a power input cable to the first and second heating elements. A planar top wall is located at the top of the main wall and has an opening for passage of a regulator of the gas cylinder.

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