Loss-in-weight feeder system

Details Loss-in-weight feeder system Loss-in-weight feeder system

1989-11-21

1992-01-14

Lall, Parshotam S.

Boots, shoes, and leggings

177105, 222 58, 364479, 364567, 36457104, G01G 1108, G01G 1316, G06F 1520

Patent

active

050816004

ABSTRACT:
A loss-in-weight feeder for discharging a flowable material from a reservoir through a controllable discharge member, including a closed loop controller configured to compare the actual rate at which material is discharged from the reservoir to a desired discharge rate. During the "refill" mode of operation, the desired discharge rate is adjusted as a function of both the density of the incoming material and the current weight of material in the reservoir. During steady-state operation, the discharge rate is adjusted in accordance with, inter alia, short term changes in the actual discharge rate which exceed a predetermined threshold value.

REFERENCES:
patent: 4054748 (1977-10-01), Ricciardi et al.
patent: 4210963 (1980-07-01), Ricciardi et al.
patent: 4301510 (1981-11-01), Ricciardi et al.
patent: 4882784 (1989-11-01), Tump

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