Resources Contact Us Home
Ion interface for mass spectrometer

Image Number 2 for United States Patent #5756995.

A heated capillary tube is axially supported in center of a housing under cuum. One end of the capillary tube receives ions from an ion source. The other end of the capillary tube terminates adjacent to the inner side of a flat plate having an orifice. A transport tube is connected to the outer side of the flat plate and has an open outer end. A first electrical field exists between the capillary tube and the plate to control the flow of ions. A second electrical field exists downstream of the plate, and the tube is disposed within the second electrical field. The transport tube allows for more efficient focusing of ions by the electrical and aerodynamic means to the mass spectrometer. A mechanical valve may be coupled to the capillary tube to independently control the flow of ions and the entire probe may be removed without compromising the vacuum in the mass spectrometer.

  Recently Added Patents
System and method for optimizing use of plug-in air conditioners and portable heaters
Method and apparatus for displaying system status with a wide range of viewing angle
Cantilevered probe detector with piezoelectric element
Method and apparatus for wireless transmission of diagnostic information
Obviation of recovery of data store consistency for application I/O errors
Power transmission control device for vehicle
Plants and seeds of corn variety CV778791
  Randomly Featured Patents
Connector members
Method for acquiring multi-cell specific message in wireless communication system
Counter for electric switch device
Conductive interconnect structure and method of formation
Power converter
Deeply-integrated adaptive INS/GPS navigator with extended-range code tracking
Power tool with light for illuminating a workpiece
Heat dissipation device with two spring fastners
Heat-developable photosensitive material
Pattern for awning