Thermoelectric diagnostic instrument

Dentistry – Apparatus – Having heater or electrode

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62 3, 128742, 219241, A61C 300

Patent

active

043080138

ABSTRACT:
A thermoelectric diagnostic instrument including a housing, a thermocouple device in the housing and thermoconductor means for delivering heat and cold from the thermocouple device to contact elements located externally of the housing. Heat dissipating means including a heat sink for receiving excess heat from the thermocouple device and means for directing ambient air into engagement with the heat sink is also located in said housing.

REFERENCES:
patent: Re26276 (1967-10-01), Hirschhorn
patent: 2200321 (1940-05-01), Angell
patent: 2454576 (1948-11-01), Slack
patent: 3130553 (1964-04-01), Makow
patent: 3207159 (1965-09-01), Tateisi
patent: 3274995 (1966-09-01), Eidus
patent: 3533397 (1970-10-01), Scher
patent: 3618590 (1971-11-01), Yardley et al.
patent: 3971229 (1976-07-01), Privas
patent: 4249899 (1981-02-01), Davis
"Thermal Pulp Testing", Cooley et al., General Dentistry, June 1978, pp. 58 and 60.

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