Orbital platform stirring system

Details Orbital platform stirring system Orbital platform stirring system

1976-06-16

1977-12-06

Jenkins, Robert W.

Agitating

By vibration

Of platform or mixing chamber supported by vibrator

74 86, 209366, 366142, 366208, B01F 1100

Patent

active

040613151

ABSTRACT:
A platform or tray for holding laboratory containers such as test tubes is driven in orbital motion by an eccentric drive mechanism housed in a cabinet. First and second pairs of tracks are mounted respectively beneath the tray and to the top of the cabinet. An intermediate plate holds four disc-shaped, low-friction bearing elements, each coupled to and guided by an upper and a lower track to maintain said tray in the same disposition during its orbital motion. An electronic circuit controls orbital speed in a continuous manner over the operating range, even at low speeds. The system operates in either a continuous mode or timed mode under control of a switch. The motor which drives the platform also drives a dc motor, the terminal voltage of which is displayed as a signal representing the speed of operation. Both the speed and the time (in timed mode of operation) may be controlled by the operator. A vibration-free mounting system is used to secure the main motor and drive train within the cabinet.

REFERENCES:
patent: 2970235 (1961-01-01), Pike
patent: 3159384 (1964-12-01), Davis
patent: 3163966 (1965-01-01), Moore
patent: 3184222 (1965-05-01), Aronowitz
patent: 3286939 (1966-11-01), Karpenko

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