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US 2014/0185651 A1Published application
Mercury free thermometer
OwnerJames H. Gammon, Howard M. Gammoninventors
Life of this patent
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Abstract
A liquid-in-stem thermometer includes a bulb configured to contain a thermometric fluid and a tube in fluid communication with the bulb. The tube has an inner surface. The liquid-in-stem thermometer further includes a layer of fluoropropyltrimethoxysilane. The layer of fluoropropyltrimethoxysilane is disposed on the inner surface of the tube. The thermometric fluid is saline water.
Claims20
A liquid-in-stem thermometer comprising:
- a bulb configured to contain a thermometric fluid;
- a tube in fluid communication with the bulb and having an inner surface;
- and
- a layer of fluoropropyltrimethoxysilane disposed on the inner surface of the tube.
1 more element
A liquid-in-stem thermometer comprising:
- a bulb configured to contain saline water;
- a tube in fluid communication with the bulb and having an inner surface;
- and
- a layer of a liquid repellant chemical disposed on the inner surface of the tube.
1 more element
A method of producing a non-mercury liquid-in-stem thermometer, comprising the steps of:
- providing a tube in fluid communication with a bulb configured for containing a thermometric fluid;
- depositing a layer of fluoropropyltrimethoxysilane on an inner surface of the tube;
- and
- filling the bulb with the thermometric fluid.
1 more element
Dependencies are inferred from the claim text.