Seed sensor

Details Seed sensor Seed sensor

1975-09-10

1979-08-14

Duggan, Donovan F.

Electrical generator or motor structure

Dynamoelectric

Reciprocating

310 25, 111 1, 221 7, H02K 3500

Patent

active

041646690

ABSTRACT:
A seed sensor for sensing seeds flowing along a path is provided with an electromagnetic transducer having a movable diaphragm. An arm is secured to a generally peripheral portion of the diaphragm and extends into the seed flow path to be struck at random by the seeds. The arm has a portion operatively engageable with a mid portion of the diaphragm and functions as a mechanical amplifier to actuate the diaphragm when struck by the seeds for producing usable output signals.

REFERENCES:
patent: 2907015 (1959-09-01), Young
patent: 2914246 (1959-11-01), Beamish
patent: 3355102 (1967-11-01), Gregory, Jr.
patent: 3422776 (1969-01-01), Gregory, Jr.
patent: 3723989 (1973-03-01), Fathaner et al.
patent: 3772541 (1973-11-01), Campagnnolo et al.

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