Title: Temperature control system

Abstract: A temperature control system comprises a heat sink heatable upon application of electric power thereto, an AC power source for heating the heat sink, temperature detector means for detecting the temperature of the heat sink, and control means for controlling the electric power applied to the heat sink in accordance with an output signal from the detector means so that the heat sink maintains its required temperature. The control means is operable to cause application of a full power of the power source to the heat sink at the initial heating stage thereof and application of a partial power of the power source to the heat sink when the temperature thereof is in the vicinity of the required temperature.

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Inventors: Furuichi, Katsushi (Yokohama, JA)
Kurita, Kenji (Kawasaki, JA)
Kimura, Yoshimasa (Kawasaki, JA)
Sakamaki, Hisashi (Yokohama, JA)

Application Number: 461796
Filing Date: 1974-04-17
Publication_date: 1976-02-10
Assignee: Canon Kabushiki Kaisha (Tokyo, JA)
Primary Class(es): 219/494 219/216, 219/489, 219/501
Other Classes:
US Patent Ref:

3018356	Jan, 1962	Busch et al.	219/489.
3221141	Nov, 1965	Kannide	219/413.
3221143	Nov, 1965	Skala	219/489.
3586830	Jun, 1971	Leitner et al.	219/501.
3636310	Jan, 1972	Hosokawa	219/501.
3646577	Feb, 1972	Ernst	219/501.

Other Refs:
Primary Examiner: Mayewsky, Volodymyr Y.
Assistant Examiner:
Attorney: Fitzpatrick, Cella, Harper & Scinto