Disposable thermometer

Details Disposable thermometer Disposable thermometer

1976-12-16

1978-08-22

Swisher, S. Clement

Measuring and testing

Muscular force

128 2H, 73374, G01K 508, G01K 522

Patent

active

041080025

ABSTRACT:
A disposable throwaway thermometer formed of synthetic resin having a gas impervious layer effectively maintaining a preselected vacuum condition within the completed thermometer. The impervious layer may be provided as a glass core tube defining the capillary bore of the thermometer. The glass layer may have a thickness of substantially less than that of the synthetic resin layer. One end of the glass core tube may be provided with a bulb element defining the reservoir chamber of the thermometer. The other end of the glass core tube may be sealingly closed as by fusion. The composite glass core and synthetic resin jacket may be formed by molding of the synthetic resin is situ about the glass core. The reservoir bulb may be sealingly secured to one end of the glass core tube.

REFERENCES:
patent: 2651203 (1953-09-01), Lamb
patent: 2712237 (1955-07-01), Margolis
patent: 3490287 (1970-01-01), Coben
patent: 3812719 (1974-05-01), Shopsky
patent: 3913402 (1975-10-01), Doyle

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