Particle detector

Details Particle detector Particle detector

1976-07-06

1977-11-08

Thesz, Joseph M.

Registers

Platform operated

Platform actuated traffic counters

235 92R, 235 98R, B65G 5136

Patent

active

040577090

ABSTRACT:
A particle detector, such as for detecting the passage of seeds through a mechanical seeder, comprising an angled-over impact resounding tubular conduit disposed in the flow of particles such that each particle is caused to impact and be deflected by the wall of the angled-over conduit. An impact detecting transducer, such as a crystal, is attached to the exterior wall of the angled-over conduit at, or proximate to, the area of particle impact. The angled-over conduit is connected between a pair of inlet and outlet conduits made of substantially impact absorbing material. The transducer feeds into a utilization circuit permitting to simply detect whether particles are present or not in the conduit, or, in the alternative, capable of counting the number of particles passing through the conduit.

REFERENCES:
patent: 2580192 (1951-12-01), Potter
patent: 2961158 (1960-11-01), Frederick
patent: 3558004 (1971-01-01), Boyd et al.
patent: 3632918 (1972-01-01), Anson et al.
patent: 3694630 (1972-09-01), Dybel
patent: 3760166 (1973-09-01), Adams et al.
patent: 3881353 (1975-05-01), Fathauer

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