Mdt Corporation

Raymond J Miller

Donald W Albright

Anthony D Powell

A microprocessor-controlled, self-contained steam sterilizer is disclosed. Once the steam exposure phase is complete in the sterilizer, the microprocessor is programmed to operate the vaporizing heater in a low-power duty cycle to utilize the vaporizing heater as a drying heater in a lower power operating mode to effect a drying phase.

Self-contained sterilizer with duty-cycle heater

Method and apparatus for providing a low temperature environment at a substantially constant and uniform temperature. A closed chamber is provided with an inlet and outlet. The chamber is operated at subatmospheric pressure. Steam is introduced into the chamber for providing the heating environment at a preselected temperature. A vacuum is applied to the chamber to regulate the steam about its saturation point for a preselected temperature.

Apparatus for subjecting a load to a constant temperature below 100.degree.

An unplumbed sterilizer is provided with an exhaust valve means which allows automatic liquid introduction to the sterilizing chamber with the door closed even after a prior sterilization cycle has been run. The exhaust valve means also minimizes the possibility of trapping air within the chamber.

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Penfield, NY, United States of America

Raymond J Miller