Deltatrak Inc.

John Betts

A temperature indicating device utilizing a housing having an exterior and an interior which includes first and second chambers. First and second chambers communicate with one another. An opening through the housing allows communication between the interior and exterior of the housing. A bimetallic element which is capable of assuming first and second configurations is positioned within the second chamber. A movable member is found in the first chamber and contacts the bimetallic elements when the bimetallic elements assumes the first configuration. A spring bias the contact between the movable member and the bimetallic element and urges movement therebetween when the bimetallic element assumes the second configuration. A signal indicates such movement by utilization of the opening between the exterior and interior of the housing.

Temperature indicating device

A mechanism for obtaining a strip record of an environmental measurement. The mechanism is used in conjunction with a clock drive which advances a recording strip and with a stylus which marks an indication of the environmental status on the recording strip. The mechanism includes a housing having an exterior and interior portion which encloses the marking stylus. The recording strip is supported by a holder to permit marking by the stylus. An element is connected to the recording strip and fixed relative to the housing for permitting marking of the recording strip by the stylus. The element is removed from the housing by movement away from the marking stylus.

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Modesto, CA, United States of America

John Betts