Electric heating – Heating devices – Resistive element: igniter type
Reexamination Certificate
2007-01-09
2007-01-09
Wolfe, Jr., Willis R. (Department: 3747)
Electric heating
Heating devices
Resistive element: igniter type
C219S267000
Reexamination Certificate
active
10531963
ABSTRACT:
A sheathed-element glow plug, in particular for internal combustion engines, includes a housing, a glow plug situated on the housing and having a heating and regulating filament situated in the glow tube, current being applicable to this heating and regulating filament via a terminal stud situated in the housing. The control filament r the heating filament or the heating and control filament are optionally multiple-coil filaments.
REFERENCES:
patent: 1751416 (1930-03-01), Musgrove
patent: 4603667 (1986-08-01), Imhof et al.
patent: 4787349 (1988-11-01), Hilger
patent: 5468933 (1995-11-01), Eller
patent: 6064039 (2000-05-01), Kumada
patent: 3911492 (1990-10-01), None
Bach Rainer
Carbon Steffen
Reissner Andreas
Wein Vera
Kenyon & Kenyon LLP
Robert & Bosch GmbH
Wolfe, Jr. Willis R.
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