Filament for mass spectrometric electron impact ion source
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jul 26, 2016
Grant Date -
Jan 28, 2016
app pub date -
Jul 25, 2014
filing date -
Jul 25, 2014
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
The invention provides a cathode system for an Electron Ionization (EI) source comprising a filament and current supply posts, the current supply posts dividing the filament into segments and each current supply post supplying or returning the current for at least two segments of the filament. Each filament segment is connected, for instance by spot welding, to the supply posts delivering the heating current. The filament segments may be arranged in a row, or substantially parallel to each other. Filament segments arranged in a row may form a closed loop, for instance, a ring. Other embodiments encompass the filament shape of a helical coil.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully