Electric resistance heating devices – Heating devices – Radiant heater
Reexamination Certificate
2006-07-04
2006-07-04
Fuqua, Shawntina (Department: 3742)
Electric resistance heating devices
Heating devices
Radiant heater
C392S411000, C219S390000, C219S405000, C219S411000, C118S724000, C118S725000, C118S050100
Reexamination Certificate
active
07072579
ABSTRACT:
A magnetic ring of ferromagnetic is attached to a wire for supplying electric power to a flash lamp. The magnetic ring is removable and is easily attachable to and detachable from the wire. When turning on the flash lamp, a high electrical current momentarily flows through the wire and intense magnetic fields occur around the wire, so that the magnetic ring attached around the wire is momentarily magnetized. As the result, induced electromotive force is generated and the current momentarily flowing through the wire is weakened, so that the irradiation intensity of the flash lamp is slightly lowered. In contrast, if desired to slightly increase the irradiation intensity of the flash lamp, the magnetic ring may be detached from the wire.
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Dainippon Screen Mfg. Co,. Ltd.
Fuqua Shawntina
Ostrolenk Faber Gerb & Soffen, LLP
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