Drying and gas or vapor contact with solids – Apparatus – With apparatus using centrifugal force
Patent
1996-03-18
1997-12-02
Bennett, Henry A.
Drying and gas or vapor contact with solids
Apparatus
With apparatus using centrifugal force
68 1206, 34319, F26B 508, F26B 1724, D06F 3300
Patent
active
056923139
ABSTRACT:
In a spin extractor according to the present invention, a basket drum for containing fabric articles is provided with a balance weight in a portion of its inner peripheral wall, giving the drum its own eccentric load. The magnitude and position of the resultant eccentric load constituted by both the drum's own eccentric load and the fabric articles unevenly distributed therein is detected based on the fluctuations in the motor current. If the magnitude of the eccentric load is out of a predetermined range or if the position of the eccentric load is not in the proximity to the position opposite at an angle of 180.degree. to the balance weight, the drum is rotated at such a speed that the centrifugal force acting on the fabric articles in the drum is smaller than the gravity force. Thus, the fabric articles are loosened, scattered and redistributed, and the magnitude and position of the eccentric load satisfy the required condition. The above-mentioned range is predetermined based on the magnitude of the eccentric load that causes no abnormal vibration in the extracting operation, taking account of both the weight of the balance weight and the decrease in the weight of the fabric articles through the extracting operation. After the magnitude and position of the eccentric load are settled to satisfy the required condition, the drum is rotated at full speed to extract liquid from the fabric articles.
REFERENCES:
patent: 2700473 (1955-01-01), Emmert et al.
patent: 3339732 (1967-09-01), Bergman
patent: 3346115 (1967-10-01), Mellinger
patent: 4411664 (1983-10-01), Rickard et al.
patent: 4765161 (1988-08-01), Williamson
patent: 5301523 (1994-04-01), Payne et al.
patent: 5345792 (1994-09-01), Farrington et al.
Ikeda Tomohiko
Nishino Masafumi
Tsunomoto Yoshitaka
Bennett Henry A.
Doster D.
Sanyo Electric Co,. Ltd.
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