Exhaust flow rate vacuum sensor

Details Exhaust flow rate vacuum sensor Exhaust flow rate vacuum sensor

1995-05-02

1997-08-12

Sipos, John

Package making

With contents treating

Vacuum or inert atmosphere

53 52, 53 75, B65B 3100

Patent

active

056553579

ABSTRACT:
A vacuum sensor for use in devices for the vacuum packaging of perishable items. The vacuum sensor senses fluid pulses or flow expelled from an exhaust port of a pump of the vacuum packaging device. The sensor converts a force of the fluid pulses or flow into a signal that changes with a change in the force of the fluid pulses or flow. The signal is then communicated to a control circuit which uses the signal to display the progress of the vacuum process and/or shut down the pump upon establishing a substantial vacuum within the package.

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