Patents Assigned to Lauronics, Inc.
  • Ion volume ring
    Patent number: 4816685
    Abstract: An ionizer for a quadrupole filter mass spectrometer has an ion volume ring which surrounds the filament and ionization chamber for 360.degree.. Heat from the filament is absorbed by the ring which suppresses secondary electron emission and directs electrons to the ionization chamber. The ion volume ring is in heat conducting relationship with accelerating and focusing electrodes to transfer heat to the electrodes to reduce contamination. The ion volume ring is electrically connected and is at the same potential as the filament.
    Type: Grant
    Filed: October 23, 1987
    Date of Patent: March 28, 1989
    Assignee: Lauronics, Inc.
    Inventor: Lawrence T. Lange