Abstract: A monitoring, tracking, and calibration system tracks temperature data and the validity of temperature measuring devices. If an item is temperature sensitive, the system permits temperature readings to be taken by a remote transmitter or other temperature measuring device and stored by a computer. A calibration device is built into the remote transmitter or attached in line to a temperature sensor and include at least one fixed value. The remote transmitter samples that fixed value periodically or in response to an instruction from the computer. The computer, in turn, compares the fixed value to a respective expected value. If the comparison indicates that the fixed value compares favorably to the at least one respective expected value, the remote transmitter is considered calibrated and functioning correctly. Otherwise, the remote transmitter is considered faulty and an error is reported so that corrective action may be taken.

Abstract: A refrigerator includes a refrigerator housing having an open upper end. Fitted beneath the open upper end are a removable cooling unit which has an inlet opening and an outlet opening both in communication with the interior of the refrigerator. The cooling unit draws air into the cooling unit, cools the air, and recirculates it into the refrigerator. The cooling unit can be removed from the lower front end of the housing for repair, and can be replaced with a similar unit so that the refrigerator can continue to be used.

Abstract: A portable urinal has a lid or projecting member from the housing with a mirror attached to allow the urinal user to properly aim his or her urine stream. The mirror helps users prevent embarrassing accidents and spills when the portable urinal is used in situations such as by bed-ridden patients in hospitals. The portable urinal is filled in a generally horizontal position but is designed to sit vertically on a table or be hung by a handle on a hospital bed rail. The mirror lid or projection can be permanently or removably coupled to the portable urinal to allow for easy urine disposal, cleaning, and sterilization.