Pressure sensor

Details Pressure sensor Pressure sensor

2007-01-09

2007-01-09

Lefkowitz, Edward (Department: 2855)

Measuring and testing

Fluid pressure gauge

With protective separator

Reexamination Certificate

active

11091248

ABSTRACT:
An electric wire insertion hole (41) arranged in a housing (4), an ventilation path of inside space (422) of which one end is opened to a pressure sensor internal space (7) and an intersection portion (421) communicating the both each other are provided. Since the electric wire insertion hole (41) and the intersection (421) intersect at right angles, water or dust entering into the electric wire insertion hole (41) does not enter a lot into the intersection (421). Therefore, water or dust hardly enters into the pressure sensor internal space (7). There is no need of a waterproof or a dustproof filter or the like to prevent water or dust, hence low cost manufacturing can be achieved.

REFERENCES:
patent: 6422085 (2002-07-01), Hegner et al.
patent: 2006/0081058 (2006-04-01), Silverbrook et al.
patent: 2006/0081061 (2006-04-01), Silverbrook et al.
patent: 2006/0081062 (2006-04-01), Silverbrook et al.
patent: 2006/0090568 (2006-05-01), Silverbrook et al.
patent: 42 44 460 (1994-04-01), None
patent: 0 974 825 (2000-01-01), None
patent: 11-148880 (1999-06-01), None
WO 96/34264, Pressure Transmitter With High Pressure Isolator Mounting Assembly, Publication Date: Oct. 31, 1996.

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