Method of forming a device for showing receipt of predetermined

Details Method of forming a device for showing receipt of predetermined Method of forming a device for showing receipt of predetermined

1978-06-07

1979-12-11

Ruehl, Charles A.

Signals and indicators

Indicators

Methods

116203, G01P 1504

Patent

active

041777514

ABSTRACT:
A device for affording an indication when a predetermined mechanical shock has been received, characterized by a base, or means for attaching to a container to be monitored; structure for measuring when a predetermined acceleration has been received by the container and the device; and an indicator for indicating to an observer that the shock has been received. Disclosed are devices having (1) a mechanical structure with a breaking point; (2) a mechanical structure with a biasing means; and (3) a structure employing an interfacial tension phenomenon. The devices may be of the "go-no go" type or may afford an indication and history of the shock, or acceleration forces, received. Also disclosed are the specific details of the respective embodiments.

REFERENCES:
patent: 2825297 (1958-03-01), Harrison
patent: 3357260 (1967-12-01), Detalle

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