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US 8,508,365 B2Granted
Alarm color plate structure of a micro-differential pressure gauge
OwnerLi-Chen Cheninventor
Life of this patent
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Abstract
An alarm color plate structure of a micro-differential pressure gauge includes a transparent casing. The transparent casing has a slot which is located corresponding to the range of movement of a pointer or a scale plate. An alarm plate is provided in the slot. The alarm plate has a plurality of areas with different colors or marks for the user to know whether the position and the value of the pointer are normal or not.
Claims8
An alarm color plate structure of a micro-differential pressure gauge, comprising:
- a gauge base comprising a pointer, an axle and a scale plate therein, the pointer moving through the axle to display a numerical value on the scale plate;
- a transparent casing coupled on the gauge base, the transparent casing having a slot which is located corresponding to the range of movement of the pointer;
- and
- an alarm plate located in the slot, the alarm plate having a plurality of areas with different colors or marks.
1 more element
Dependencies are inferred from the claim text.