Decreasing load on devices for mass spectrometers

Details Decreasing load on devices for mass spectrometers Decreasing load on devices for mass spectrometers

2005-11-08

2005-11-08

Ha, Nguyen T. (Department: 2831)

Electricity: electrical systems and devices

Electrostatic capacitors

Variable

C361S302000, C361S305000, C361S272000, C361S277000, C361S290000, C174S250000, C174S256000

Reexamination Certificate

active

06963481

ABSTRACT:
A detector assembly including a support element, a first capacitor plate and a second capacitor plate. The support element is configured to attach the detector assembly to a chamber wall that separates a lower pressure region and a higher pressure region. A surface of the second capacitor plate is spaced apart from a surface of the first capacitor plate to define a capacitor gap. The first capacitor plate is positioned to be inside the lower pressure region when the detector assembly is attached to the chamber wall. The second capacitor plate is supported by the support element through insulating couplings. The detector assembly also includes a means for reducing mechanical load on the insulating couplings between the second capacitor plate and the support element. The reduced mechanical load includes load caused by a pressure difference between the lower and higher pressure regions.

REFERENCES:
patent: 4215387 (1980-07-01), Negishi et al.
patent: 6093054 (2000-07-01), Merkle et al.
patent: 6242989 (2001-06-01), Barber et al.
patent: 6424515 (2002-07-01), Gore et al.
patent: 6466447 (2002-10-01), Murowaki et al.

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