Electric resistance heating devices – Heating devices – Concentrated heated air stream
Reexamination Certificate
2006-10-17
2006-10-17
Campbell, Thor S. (Department: 3742)
Electric resistance heating devices
Heating devices
Concentrated heated air stream
C392S380000, C392S383000
Reexamination Certificate
active
07123823
ABSTRACT:
The dryer includes in its programmable control circuit a microprocessor to which are connected at least a temperature sensor, a static pressure sensor, a motor revolution sensor, a ion generator, a resistor battery with its selector switches in series, and the respective power circuits of the motor and the air heater aforesaid, in which, in order to optimize the processing route, said microprocessor, after the dryer is turned on and the operating values of parameters, establishes the initial operating configuration at 50% of the value thereof, and then defines continuously, in terms of the ordinary data base, the constant functional conditions, and responds to electric, thermal and mechanical discrepancies being involved with its corrective stabilization, recording, signaling and information by means of a display. The stabilization of the ordinary operation conditions, both of the motor and of the heating resistor is achieved by means of the corresponding sensor, the information from which is channeled towards and from the respective speed and temperature control while the signaling and the information are carried out by connecting the respective control in turn to the corresponding VU meter and the equipment display. The recording of events receives directly the information from sensors and from speed and temperature controls, while from the aforesaid speed and temperature controls the information is sent back to the parameter status verification point.
REFERENCES:
patent: 5805406 (1998-09-01), Mailand
patent: 6191930 (2001-02-01), Ramchandani
patent: 6393718 (2002-05-01), Harris et al.
patent: 6640049 (2003-10-01), Lee et al.
patent: 6941675 (2005-09-01), Slingo
Abramson Ronald
Campbell Thor S.
Duna Enterprises S.A.
Hughes Hubbard & Reed LLP
Sullivan Peter A.
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