Signals and indicators – Indicators – Liquid level
Patent
1978-02-13
1979-01-09
Yasich, Daniel M.
Signals and indicators
Indicators
Liquid level
60534, 60592, 73334, 220 82R, 264136, 116276, G01D 1126, G01F 2302
Patent
active
041332873
ABSTRACT:
A master cylinder reservoir molded of glass fiber filled nylon. An integrally molded window in a side wall is thinner than the reservoir walls and has a lower concentration of fibers so that it is sufficiently translucent to permit visual determination of the level of hydraulic brake fluid in the reservoir by observation through the window. The method of making the reservoir by molding, in which the flow of fibers into the window section is restricted to reduce the fiber concentration in the window and make it more translucent, is also disclosed.
REFERENCES:
patent: 2311613 (1943-02-01), Slayter
patent: 2313889 (1943-03-01), Porter
patent: 2755629 (1956-07-01), Baisch
patent: 3096648 (1963-07-01), Dombeck et al.
patent: 3096748 (1963-07-01), Harry
patent: 3103816 (1963-09-01), Kawecki
patent: 3339519 (1967-09-01), Taylor et al.
patent: 3432380 (1969-03-01), Weber
General Motors Corporation
McGraw D. D.
Yasich Daniel M.
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