Refrigeration – Processes – Treating an article
Patent
1998-06-19
1999-03-16
Capossela, Ronald
Refrigeration
Processes
Treating an article
62374, F25D 1306
Patent
active
058815627
ABSTRACT:
A method of in-line surface-hardening of products is provided. In the process, the products are introduced into a chamber with at least one conveyor. The chamber includes a frigorie transfer means for surface-hardening the products. A surface hardened product is extracted from the chamber upon receipt of a product request signal emitted by a preparation unit located downstream of the device. The at least one conveyor is controlled to, upon receiving the product request signal, extract from the chamber the surface-hardened product which has resided longest in the chamber and, substantially at the same time, introducing into the chamber a new product to be surface hardened. The frigorie transfer means is controlled so as to control the quantity of frigories to be transferred to the products present in the chamber per unit time as a function of at least one elapsed period between two successive times at which preceding request signals from the preparation unit were received.
REFERENCES:
patent: 4553406 (1985-11-01), Richelli et al.
patent: 4750331 (1988-06-01), Barthelmes et al.
patent: 5054292 (1991-10-01), Klee
Capossela Ronald
L'Air Liquide Societe Anonyme pour l'Etude et, l'Exploitation de
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