Display device for the number of heatings performed

Details Display device for the number of heatings performed Display device for the number of heatings performed

1994-09-15

1999-10-19

Lee, Eddie C.

Registers

Operating devices

Plural registers

235103, 235115, 235131R, G06M 100, G06C 2700

Patent

active

059693150

ABSTRACT:
A display device is described which indicates the number of heatings performed, especially for the purpose of autoclave sterilization. The display device comprises a temperature-sensitive mechanical element which essentially reversibly transforms from a first spatial state to a second spatial state when the temperature-sensitive mechanical element is heated in excess of a predetermined temperature. The temperature-sensitive mechanical element is coupled to the actuating element of a counter mechanism and upon the transformation to the second spatial state effects movement of the actuating element into an actuation position.

REFERENCES:
patent: 2476560 (1949-07-01), Norgard
patent: 2762567 (1956-09-01), Van Veen
patent: 3178109 (1965-04-01), Farrell et al.
patent: 3428324 (1969-02-01), Weisbecker
patent: 3713582 (1973-01-01), Furuoka
patent: 3720898 (1973-03-01), Levinn
patent: 4235842 (1980-11-01), Thomas et al.
patent: 5090033 (1992-02-01), Murray-Shelley
patent: 5300087 (1994-04-01), Knoepfler
patent: 5304190 (1994-04-01), Reckelhoff

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