Jidosha Kiki Co., Ltd.

Jidoshi Kiki Co., Ltd.

Munesato Andoh

Kunio Yanagi

A master cylinder assembly of the type that a current quantity of operating fluid in the interior of a reservoir is detected by function of a float means, wherein the float means has an extension extending with its center of buoyancy disposed near the center line of the reservoir.

Master cylinder

A waterproof seal ring, to be fitted between the contacting surfaces of a master cylinder body and the front wall of a power booster housing surrounding a bulge of the housing through which a push rod is inserted and having a downwardly extended passage groove formed in the lower part of the wall, has a circumferential vent groove formed on the pressure-contact side of the ring. The vent groove is communicated at the lower end with the passage groove in the front wall of the booster housing and at the upper end with the space inside the bulge.

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Higashimatsuyama, Japan

Munesato Andoh