Mass spectrometers that utilize ionic wind and methods of use thereof

Patent metadata

Field	Value
Publication number	US-12068148-B2
Application number	US-202318130474-A
Country	US
Kind code	B2
Filing date	Apr 4, 2023
Priority date	Jun 5, 2020
Publication date	Aug 20, 2024
Grant date	Aug 20, 2024

Abstract

The invention generally relates to mass spectrometers that utilize ionic wind and methods of use thereof.

First claim

What is claimed is:

1. An ionic wind pump, the pump comprising:
a pump housing comprising an open distal end, wherein the pump housing does not comprise an electrode;
a corona discharge source within the pump housing;
a ground metal mesh also within the pump housing, wherein the ground metal mesh is spaced apart and distal to the corona discharge source; and
an outlet distal to the ground metal mesh and the open distal end of the pump housing, the outlet narrowing from a proximal end to a distal end.

2. The ionic wind pump of claim 1 , wherein the outlet is integrally formed to the ionic wind pump.

3. The ionic wind pump of claim 1 , wherein the outlet is a separate connectable part to the ionic wind pump.

4. The ionic wind pump of claim 1 , wherein the corona discharge source comprises a corona discharge wire.

Assignees

• Purdue Research Foundation

Inventors

• Cooks Robert Graham
• Marsh Brett M

Classifications

• H01J49/16

  using surface ionisation, e.g. field-, thermionic- or photo-emission · CPC title

• H01J49/0031

  Step by step routines describing the use of the apparatus (H01J49/0081 takes precedence) · CPC title

• H01J49/4225

  Multipole linear ion traps, e.g. quadrupoles, hexapoles · CPC title

• H01J49/24 Primary

  Vacuum systems, e.g. maintaining desired pressures · CPC title