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US 2011/0226177 A1Published application
Pointer gauge surface structure with a movable alarm adjustment mark
AssigneeHwa Chi Technology Co., Ltd.
InventorLI-CHEN CHEN
Life of this patent
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Abstract
A pointer gauge surface structure with an indication mark. A mark member is coupled on the surface of a pressure gauge or a micro-differential pressure gauge to display a critical value for a person to read with ease. A circumferential portion of a transparent casing is provided with a slide rail for engagement and slide of the mark member. The mark member has a C-shaped cross-section to provide a tightening function relative to the slide rail.
Claims9
A pointer gauge surface structure, comprising a pointer seat and a transparent casing;
- the pointer seat comprising a pointer, an axle and a scale plate, the pointer carrying out an arcuate movement through the axle to display a numerical value on the scale plate;
- and
- the transparent casing being coupled on the pointer seat, a circumferential portion of the transparent casing being provided with a slide rail, the slide rail being located in correspondence with a movement range of the pointer, the slide rail being adapted for engagement of a mark member.
Dependencies are inferred from the claim text.