Pumping unit for television tubes

Details Pumping unit for television tubes Pumping unit for television tubes

1976-04-27

1978-01-31

Bell, Houston S.

Fluent material handling, with receiver or receiver coacting mea

Evacuation apparatus

417 85, B65B 3104

Patent

active

040710580

ABSTRACT:
A two stage pumping unit for evacuating tubes, and in particular television ubes. A primary mechanical pump is air-cooled and is connected in series with an oil diffusion pump. The inlet for the stem of a tube to be evacuated has a sealing ring and between the sealing ring and the diffusion pump there is a baffle. Between the two pumps there is an oil condensation device and an oil trap. The trap, the condensation device, the oil diffusion pump, the baffle and the sealing ring are arranged for cooling by forced air.

REFERENCES:
patent: 2757840 (1956-08-01), Weissenberg et al.

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