Electric heating – Heating devices – With heater-unit housing – casing – or support means
Reexamination Certificate
2007-05-16
2011-11-01
Pelham, Joseph M (Department: 3742)
Electric heating
Heating devices
With heater-unit housing, casing, or support means
C219S535000, C219S553000
Reexamination Certificate
active
08049146
ABSTRACT:
The invention relates to a device and a method for welding two polymer parts via fusion using a heater mat knitted from a resistive wire coated with an insulating varnish, the heater mat being given a final shape. The heater mat is resistive wire having a diameter ranging from 0.2 mm to 0.3 mm, and has approximately parallelepiped meshes, the dimensions of which range from 1.5×3 mm2to 2.5×4.5 mm2.
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patent: 2004/0038023 (2004-02-01), Hartley et al.
patent: 0 430 762 (1991-06-01), None
patent: 1.473.009 (1967-03-01), None
patent: 5-138742 (1993-11-01), None
Darut Alain
Gueugnaut Dominique
Lopitaux Aymeric
Gaz De France
Leydig , Voit & Mayer, Ltd.
Pelham Joseph M
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