Nuclear magnetic resonance spectrometer

Claim 2

In a nuclear magnetic resonance spectrometer having an exterior case with an inlet for a sample tube, magnetic field generating means enclosed in said case and a nuclear magnetic resonance signal detector for receiving said sample tube including a sample to be analyzed, a sample intake arrangement comprising a holder for supporting said sample tube, guide means provided between said inlet of said spectrometer case and said nuclear magnetic resonance signal detector for guiding said holder during movement thereof between said inlet and said detector, a cover hinged to said case to cover said inlet, and linkage means connected between said holder and said cover for moving said holder up and down within said guide means in a coordinate manner with opening and closing motion of said cover.

Claim 3

A sample intake arrangement for a nuclear magnetic resonance spectro-meter having a case, magnetic field generating means enclosed in said case and a nuclear magnetic resonance signal detector for receiving a sample tube including a sample to be analyzed, comprising a holder for supporting said sample tube, guide means provided between an inlet of said spectrometer case and said nuclear magnetic resonance signal detector for guiding said holder during movement thereof between said inlet and said detector, a cover provided on the inlet of the case, and linkage means for moving said holder up and down within said guide means in a coordinate manner with opening and closing motion of said cover further including a lower stopper mounted on said guide means for supporting said holder at one end thereof and supporting means for supporting said sample tube independently of said holder when said holder is supported by said lower stopper of said guide means so that said sample tube becomes free to move with respect to said holder.

Claim 4

A sample intake arrangement for a nuclear magnetic resonance spectro-meter having a case, magnetic field generating means enclosed in said case and a nuclear magnetic resonance signal detector for receiving a sample tube including a sample to be analyzed, comprising a holder for supporting said sample tube, guide means provided between an inlet of said spectrometer case and said nuclear magnetic resonance signal detector for guiding said holder during movement thereof between said inlet and said detector, a cover provided on the inlet of the case, and linkage means for moving said holder up and down within said guide means in a coordinate manner with opening and closing motion of said cover further including a lower stopper mounted on said guide means for supporting said holder at one end thereof and supporting means for supporting said sample tube independently of said holder when said holder is supported by said lower stopper of said guide means so that said sample tube becomes free to move with respect to said holder.

Claim 5

A sample intake arrangement according to claim 2 wherein said sample tube is supported in said holder by an air turbine having a portion including driving blades extending outside of said holder, said supporting means including an air nozzle positioned for alignment with said driving blades when said holder is supported on said lower stopper.

Claim 6

A sample intake arrangement according to claim 3 wherein said air turbine includes a plurality of stabilizing blades which frictionally engage with said holder when said holder is moved up said guide means.

Claim 7

A sample intake arrangement according to claim 4 wherein said linkage means comprises a pair of strings, one end of each string being fixed on said holder, the other end being secured to an open edge of said cover.

Claim 8

A sample intake arrangement according to claim 5 wherein said pair of strings is connected to said cover by way of a coil spring.

Claim 9

A sample intake arrangement according to claim 1 wherein said linkage means comprises a pair of strings, one end of each string being fixed on said holder, the other end being secured to an open edge of said cover.

Claim 10

A sample intake arrangement according to claim 1 wherein said holder is made from a light-weight, conductive material.

Claim 11

A sample intake arrangement according to claim 1 wherein said sample tube is supported in said holder by an air turbine Having a portion including driving blades, and further including air supply means for driving said turbine in rotation.

Claim 12

A sample intake arrangement according to claim 9 wherein said air turbine includes a plurality of stabilizing blades which frictionally engage with said holder when said holder is moved up said guide means.