Electricity: circuit makers and breakers – Float – Float and pressure
Patent
1974-03-21
1976-12-14
Smith, Jr., David
Electricity: circuit makers and breakers
Float
Float and pressure
H01H 3518
Patent
active
039977447
ABSTRACT:
Liquid level detectors known in the art are, for the most part, designed so that they are mounted in a vertical direction to the liquid level. However, with the recent trend toward using liquid containers of more complicated shapes, there has existed a need for a liquid level detector of a type that can be mounted in a horizontal direction with respect to the liquid level. Moreover, there has existed a need for a liquid level detector of a type which requires as small a mounting opening as possible. In accordance with the present invention, there is provided a liquid level detector in which a permanent magnet is fixedly mounted on the central portion of a float having a long and slender shape, e.g., elliptic or rectangular shape and being enabled to slide along a case containing a reed switch therein and to positively bring the reed switch into operation to detect the liquid level, and which thus meets the above-mentioned requirements.
REFERENCES:
patent: 2927176 (1960-03-01), Auld, Jr. et al.
patent: 3258968 (1966-07-01), Woodcock
patent: 3750124 (1973-07-01), Barnes et al.
Nippondenso Co. Ltd.
Smith Jr. David
Toyota Jidosha Kogyo Kabushiki Kaisha
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