Efficient and inexpensive glass circulating pump.
An efficient and inexpensive pump has been developed for the circulation of gaseous mixtures in a closed system. A continuous unidirectional flow of gas at rates of 0-40 l min(-1) was produced over an operating range of 10(-5)-10(-3) Torr.
Sime
M E
ME
Department of Chemistry, University of Southampton, Southampton SO9 5NH, Great Britain.
Caplin
M L
ML
Phillips
D
D