Method for control of ceiling tile process

Details Method for control of ceiling tile process Method for control of ceiling tile process

1976-01-13

1977-11-01

Botz, Eugene G.

Boots, shoes, and leggings

162198, 364469, 364568, D21F 1100

Patent

active

040567141

ABSTRACT:
A process for controlling the dry density of ceiling tile where a delayed measurement of thickness or caliper is compared with an off-line oven dry basis weight measurement of a previously taken sample to provide dry density which is then compared to a dry density target to yield an error signal which updates an on-line wet density indication to provide control of stock flow.

REFERENCES:
patent: 3564224 (1971-02-01), Chope
patent: 3634187 (1972-01-01), Chari et al.
patent: 3711687 (1973-01-01), Stout et al.
patent: 3801426 (1974-04-01), Putman et al.

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