Fluid handling – With indicator – register – recorder – alarm or inspection means – Liquid level responsive indicator – recorder or alarm
Patent
1980-06-20
1982-07-06
Hershkovitz, Abraham
Fluid handling
With indicator, register, recorder, alarm or inspection means
Liquid level responsive indicator, recorder or alarm
60535, 60592, 137854, F15B 710
Patent
active
043377920
ABSTRACT:
In a fluid reservoir for a brake master cylinder, a cap member of elastic material is coupled over the upper opening of a casing, and a diaphragm seal member is coupled within the cap member to subdivide the interior space of the casing into upper and lower chambers. The seal member is provided at its outer periphery with an inlet check valve assembly and at its inner periphery with an outlet check valve assembly. The inlet check valve assembly is characterized by an annular valve seat in the form of a lower stepped portion in the cap member, a cylindrical retainer secured to the outer periphery of the seal member and having an annular flange facing to an upper stepped portion in the cap member, an annular lip of elastic material integral with the flange of the retainer, and a spring loading the retainer toward the upper stepped portion.
REFERENCES:
patent: 3945474 (1976-03-01), Palmer
patent: 4136712 (1979-01-01), Nogami
patent: 4181147 (1980-01-01), Fujii
patent: 4192345 (1980-03-01), Fujii
Hershkovitz Abraham
Toyota Jidosha Kogyo Kabushiki Kaisha
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