Measuring and testing – Liquid level or depth gauge – Float
Patent
1989-05-30
1990-05-15
Shoap, Allan N.
Measuring and testing
Liquid level or depth gauge
Float
73313, 340620, 338 33, G01F 2332, G01F 2336
Patent
active
049247042
ABSTRACT:
A fuel sender assembly using a wiper contact to generate a resistance proportional to fuel level in a fuel tank has a bent float rod engaged by a fork and a bore of a carrier element which rigidly carries a spring contact. The spring contact slidably engages a resistor on a resistor card within a housing. The carrier element extends through a slot in the housing such that it abuts the ends of the slot to provide rotational limits for the float rod. The carrier element retains the float rod such that the float rod is allowed to move over a limited distance in the direction coaxial with the portion of the float rod about which the other movable parts rotate. All other movement of the float rod, except the sweeping movement related to fuel level, are substantially prevented. Vibrational wear of the resistor card is thus avoided.
REFERENCES:
patent: 3200646 (1965-08-01), Donko et al.
patent: 3316763 (1967-05-01), De Giers
patent: 3348413 (1967-10-01), Zimmerle
patent: 3842673 (1974-10-01), Riddel
patent: 4144757 (1979-03-01), Mauboussin
patent: 4337657 (1982-07-01), Morris
patent: 4441364 (1984-04-01), Montie
patent: 4532491 (1985-07-01), Rau et al.
Ford Motor Company
Godwin Paul K.
Gutierrez Diego F. F.
Mollon Mark
Shoap Allan N.
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