Regulator with multiple flow diffusers

Details Regulator with multiple flow diffusers Regulator with multiple flow diffusers

2005-09-20

2005-09-20

Hepperle, Stephen M. (Department: 3753)

Fluid handling

Processes

With control of flow by a condition or characteristic of a...

C137S508000, C123S459000

Reexamination Certificate

active

06945265

ABSTRACT:
A flow-through pressure regulator includes a retainer that secures a diaphragm relative to a seat, and includes an intermediate portion, an end portion and a base portion. The intermediate portion extends along a longitudinal axis and is fixed with respect to the seat. The end portion extends from the intermediate portion and includes a concave surface facing the seat. The regulator includes multiple flow diffusers such that the end portion includes at least one aperture having a flow axis that is oblique to the longitudinal axis so as to reduce noise due to fluid flow and/or the seat forms a passage having an increasing cross-sectional area from an inlet to an outlet.

REFERENCES:
patent: 5180139 (1993-01-01), Gethmann et al.
patent: 5778926 (1998-07-01), Tanaka et al.
patent: 5901742 (1999-05-01), Kleppner et al.
patent: 6782871 (2004-08-01), McIntyre et al.
patent: 195 48 167 (1997-06-01), None
patent: 1 106 821 (2001-06-01), None
International Search Report; International Application No. PCT/US03/17858; date completed, Sep. 18, 2003.

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