Electric heating – Heating devices – With power supply and voltage or current regulation or...
Patent
1974-12-18
1977-08-16
Reynolds, Bruce A.
Electric heating
Heating devices
With power supply and voltage or current regulation or...
H05B 102
Patent
active
040428052
ABSTRACT:
Sterilizing apparatus is provided in accordance with the teachings of the instant invention wherein a programmed cycle of operation is initiated and maintained unless electrical failure occurs. According to one exemplary embodiment, upon activation and cycle initiation, a door to a sterilizing chamber is locked and a control relay is latched in an enabled condition. The enabling of the control relay energizes a heater disposed in a heating relationship to the sterilizing chamber and the heat generated within said sterilizing chamber is monitored by a sensor which selectively controls the heater to maintain a selected heat within the sterilizing chamber. When a predetermined temperature within the sterilizing chamber is detected a timer is initiated for the sterilization cycle selected. Upon an expiration of the timing interval, the control relay is opened and the door to the sterilizing chamber is unlocked whereupon cycle resetting may take place upon an opening of the door to the sterilizing chamber while any interruption of the programmed sequence of events will abort the sterilizing cycle initiated.
REFERENCES:
patent: 3410988 (1968-11-01), Nagel
patent: 3562490 (1971-02-01), Leach
patent: 3687612 (1972-08-01), Ernst
patent: 3737744 (1973-06-01), Bader
Becton Dickinson and Company
Bell Fred E.
Reynolds Bruce A.
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