Gas chromatography transfer line
OwnerEberhard Gerstelinventor
Life of this patent
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Abstract
The invention relates to a gas chromatography transfer line, having a glass tube (12), a steel tube (13) enclosing this glass tube and a heating coil (17) enclosing the steel tube, in which a tube (15) made of a material with high thermal conductivity is arranged between the steel tube (13) and the heating coil (17), the tube (15) being provided with a series of bores (16) in the axial and in the circumferential direction and being soldered to the heating coil (17) and to the steel tube (13), the solder (20) filling the bores (16) and intermediate spaces between the steel tube (13) and the tube (15).
Claims10
A gas chromatography transfer line with an entry end and an exit end, comprising:
- a first tube constructed of glass;
- a second tube constructed of steel enclosing said first tube;
- a heating coil enclosing said second tube;
- a third tube constructed of a material with a thermal conductivity higher than that of the second tube;
- said third tube having an axial and a circumferential direction and
- being arranged between said second tube and said heating coil so as to provide interstices between said second tube and said third tube,
- the third tube being provided with a series of bores spaced apart in said axial and in said circumferential direction and
- the third tube being soldered by a solder to said heating coil and to said second tube;
- wherein said solder fills said bores and said interstices between said second tube and said third tube.
Dependencies are inferred from the claim text.