Relative pressure sensor

Details Relative pressure sensor Relative pressure sensor

2006-11-28

2006-11-28

Lefkowitz, Edward (Department: 2855)

Measuring and testing

Fluid pressure gauge

Diaphragm

C073S747000

Reexamination Certificate

active

07140256

ABSTRACT:
A pressure sensor for measuring a pressure difference between a pressure being measured and the ambient atmospheric pressure surrounding the pressure sensor, including a platform and a membrane loadable with a pressure being measured. The membrane is secured at its edge to the platform, with a pressure chamber thus being formed between the platform and the measuring membrane. The pressure chamber communicates over a reference air path with the atmosphere, with the reference air path being a winding path.

REFERENCES:
patent: 6639724 (2003-10-01), Bower et al.
patent: 2002/0181110 (2002-12-01), Bower et al.
patent: 2005/0269256 (2005-12-01), Haq et al.
patent: 0 974 825 (2000-01-01), None
patent: 1 070 948 (2001-01-01), None
patent: WO 03/058186 (2003-07-01), None

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