Measuring apparatus for determining the degree of utilization of

Details Measuring apparatus for determining the degree of utilization of Measuring apparatus for determining the degree of utilization of

1988-03-24

1990-05-15

Gruber, Felix D.

Boots, shoes, and leggings

36455101, 364554, G07C 308, G06F 1536

Patent

active

049263536

ABSTRACT:
A portable measuring apparatus for determining utilization factor of a machine includes a microphone for detecting operational noise of the machine and a computerized evaluation circuit driving a display device. From time intervals between the detected noise the evaluation circuit generates digital data indicative of work interruptions of the machine and divides total operational time of the measuring apparatus by the total non-operative time of the machine to determine and display the utilization factor of the machine.

REFERENCES:
patent: 3793512 (1974-02-01), Lorenzen
patent: 4049952 (1977-09-01), Forsslund
patent: 4089056 (1978-05-01), Barna et al.
patent: 4142238 (1979-02-01), Brandt et al.
patent: 4179611 (1979-12-01), Mill et al.
patent: 4471348 (1984-09-01), London et al.

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