Disposable-type temperature recorder

Details Disposable-type temperature recorder Disposable-type temperature recorder

1976-03-11

1977-02-15

Swisher, S. Clement

Measuring and testing

Gas analysis

Moisture content or vapor pressure

G01K 570

Patent

active

040076377

ABSTRACT:
A temperature recorder which produces a continuous graphic record, scribed on a removable tape, of the temperature existing in an enclosure (such as a refrigerated railroad car) during a given period of time (e.g., the transit time of such a railroad car). The present temperature recorder--which is a modification, in disposable form, of the recorder for like purpose shown in U.S. Pat. No. 3,826,140, dated July 30, 1974-- comprises, in a sealed case, a slow travelling tape which spans between a tape feed spool an a spring-driven tape take-up spool; there being a temperature-responsive device which scribes--in terms of temperature in relation to time--on the tape as it so travels, and means to regulate the speed of travel of said tape.

REFERENCES:
patent: 3826140 (1974-07-01), Nakagawa
patent: 3971035 (1976-07-01), Maxwell

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