Adaptive timing in-motion checkweigher

Details Adaptive timing in-motion checkweigher Adaptive timing in-motion checkweigher

1992-03-12

1994-04-05

Fuller, Benjamin R.

Weighing scales

With weigher loading or unloading means

177 1, 177 12, 177 2513, 177 50, 177119, 364567, G01G 1900

Patent

active

053007360

ABSTRACT:
A method and apparatus for an in-motion weighing system which includes a package conveyor, a weigh pan, a package detector positioned adjacent to the conveyor and upstream from the weigh pan, a timer for determining the time required for a package to pass by the package detector, means for storing the time required for a point on the conveyor to transition the weigh pan, means for subtracting the package passing time from the weigh pan transition time for establishing a read scale window, and a means for measuring the average weight of a package on the weigh pan during the read scale window.

REFERENCES:
patent: 3857488 (1974-12-01), Le Cren
patent: 4231439 (1980-11-01), Hall, Jr. et al.
patent: 4413739 (1983-11-01), Kohashi
patent: 4535854 (1985-08-01), Gard et al.
patent: 4709770 (1987-12-01), Kohashi et al.
patent: 4825965 (1989-05-01), Inoue et al.
patent: 4951763 (1990-08-01), Zimmerman et al.
patent: 5119894 (1992-06-01), Crawford et al.

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