Rotary evaporator with control system

Details Rotary evaporator with control system Rotary evaporator with control system

1987-02-06

1988-10-25

Castel, Benoit

Concentrating evaporators

Film type

Centrifugal

159 44, 159 49, 202205, 202238, 203DIG2, 203DIG7, 422 99, 422107, 422109, B01D 122, B01D 130

Patent

active

047801786

ABSTRACT:
Rotation driving apparatus usable with a rotary evaporator for holding a sample vessel in a water bath. The driving apparatus includes a stator supported by an elevating member mounted alongside the water bath, and a rotor mounted on the inside of the stator. A hollow support shaft is mounted within the rotor, and the sample vessel is detachably connected to one end of the support shaft. A concentrator can be connected to the other end of the support shaft, for fluid communication with the sample vessel through the hollow support shaft. The support shaft is affixed to the rotor, so that the sample vessel and concentrator are rotated as the rotor turns. A slitted disk is supported by the rotor, and a photosensor produces signals in response to relative movement of the slits. These signals are used for controlling the rotation of the driving apparatus.

REFERENCES:
patent: 2865445 (1958-12-01), Buchler
patent: 2955025 (1960-10-01), Conlon
patent: 3250687 (1966-05-01), Frank
patent: 3342696 (1967-09-01), Bush
patent: 3783312 (1974-01-01), Schindel et al.
patent: 4030834 (1977-06-01), Bauer et al.
patent: 4171495 (1979-10-01), McNinch, Jr.
patent: 4226537 (1980-10-01), Colly
patent: 4259604 (1981-03-01), Aoki
patent: 4522684 (1985-06-01), Saito

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