Fluid level indicator for tandem master cylinder

In a tandem master cylinder having a casing defining front and rear fluid chambers therein to store an amount of brake fluid, said fluid chambers being in fluid communication to each other;

• a lateral partition provided within said casing between said two fluid chambers to block the relative fluid communication between said fluid chambers after the fluid level within both said chambers drops below a predetermined lowest level defined by said lateral partition;
• an annular partition provided on said lateral partition between said two fluid chambers to form a float chamber therein, said annular partition being higher than said lateral partition in a predetermined length and including at least a recessed portion adjacent to said lateral partition to permit fluid flow from said two chambers into said float chamber, the bottom of said recessed portion corresponding to an upper surface of said lateral partition to block fluid communication between said two chambers and said float chamber after the fluid level within said float chamber drops below said predetermined lowest level;
• switch means mounted on said casing between said two chambers and adapted to actuate a warning device upon closing of said switch means;
• and
• a single float disposed within said float chamber for vertical movement in response to variation of the fluid level within said chambers and operatively connected to said switch means;
• whereby said switch means is closed to actuate said warning device only when the fluid level within said fluid chambers drops below the predetermined lowest level.