Reversed or missing lead frame detector

Details Reversed or missing lead frame detector Reversed or missing lead frame detector

1990-01-26

1990-11-27

Orsino, Joseph A.

Communications: electrical

Condition responsive indicating system

Specific condition

324158F, 324555, 29593, 361421, 340653, G08B 2100

Patent

active

049739484

ABSTRACT:
A reversed or missing lead frame apparatus that detects the presence or absence of a unique aperture by completing or opening an electrical circuit thereby providing indication or an alarm when the circuit resistance is not within an expected range of resistance values that is dependent on the total number of lead frames being tested.

REFERENCES:
patent: 3838984 (1974-10-01), Crane et al.
patent: 4415917 (1983-11-01), Chiba et al.
patent: 4651415 (1987-03-01), Frampton
patent: 4721365 (1988-01-01), Nishimura
patent: 4833396 (1989-05-01), Haberland

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