Measuring and testing – Gas analysis – Moisture content or vapor pressure
Patent
1977-12-15
1979-05-01
Padgett, Benjamin R.
Measuring and testing
Gas analysis
Moisture content or vapor pressure
96 90R, 96 90PC, 101469, 101470, 101473, 106 145, 116207, 250317, 427146, 427148, 427150, 427151, 252408, B41M 518
Patent
active
041517482
ABSTRACT:
A thermally sensitive record medium is disclosed. Data is generated on the record medium in response to an application of heat. The record medium is capable of generating data images in more than one color by exposing the medium to more than one temperature level in areas to be imaged. Overlap or interference between two colors is avoided by utilizing at least one color-forming system which requires a thermal decomposition of one system component before it can be reacted to yield color.
The record material is made by coating individual layers, each containing a color-forming system or preferably by coating a single layer including all of the color-forming systems.
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patent: 3887808 (1975-06-01), VAN DEN Houte et al.
patent: 3964911 (1976-06-01), Rodillard
patent: 4010033 (1977-03-01), Metzger
Gron T. S.
McKinney E. Frank
NCR Corporation
Padgett Benjamin R.
Phillips, Jr. Paul S.
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