Device and method for filling of hydraulic pressure...

Details Device and method for filling of hydraulic pressure... Device and method for filling of hydraulic pressure...

2005-04-26

2005-04-26

Douglas, Steven O. (Department: 3751)

Fluent material handling, with receiver or receiver coacting mea

Evacuation apparatus

C141S083000, C141S067000

Reexamination Certificate

active

06883562

ABSTRACT:
For avoiding the evaporation of volatile components of a fill oil and for avoiding contamination of the fill oil with ambient air, a method for the filling of hydraulic pressure measurement mechanisms by means of a readied filling chamber. The method includes the following steps: (I) Evacuating the filling chamber by means of a vacuum pump over a first path of a first conductivity, extending between the vacuum chamber and the vacuum pump; (II) ending the evacuation of the filling chamber over the first path; (III) continued evacuating of the filling chamber by means of the pump over a second path of a second conductivity, extending between the filling chamber and the vacuum pump, wherein the second conductivity is smaller than the first conductivity; (IV) feeding the fill oil into the evacuated fill chamber and (V) filling the measurement mechanisms.

REFERENCES:
patent: 4833922 (1989-05-01), Frick et al.
patent: 4928376 (1990-05-01), Poglitsch
patent: 6267159 (2001-07-01), Adolf et al.

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