Automatic temperature and humidity regulation – Thermostatic – In fluid controlled
Reexamination Certificate
2007-10-02
2007-10-02
Jiang, Chen Wen (Department: 3744)
Automatic temperature and humidity regulation
Thermostatic
In fluid controlled
C236S09300A, C137S861000, C137S591000
Reexamination Certificate
active
10887909
ABSTRACT:
A valve comprises a housing, a movable check mechanism that is suitable for regulating passage of a fluid between an inlet orifice and an outlet orifice of the housing, a stationary seat for receiving the check mechanism, and a thermostatic element that is provided with a body, which contains an expandable material, and a movable piston, with this body being stationary relative to the housing. In order to prevent excessive pressure from being generated in the valve, on a side of the check mechanism where the thermostatic element is arranged, the check mechanism and the piston are connected by a part that is integral with the valve and delimits a blind recess for receiving the piston, with a base of the recess forming a stop for the piston when a difference in pressure on either side of the check mechanism is less than a predetermined value, while a wall of the recess forms a surface for sliding contact with the piston when this difference in pressure is greater than this predetermined value.
REFERENCES:
patent: 5482010 (1996-01-01), Lemberger et al.
patent: 6719208 (2004-04-01), Brown
patent: 0694681 (1996-01-01), None
patent: 2601719 (1988-01-01), None
Mabboux Lionel
Roman Jean-Michel
Jiang Chen Wen
Vernet S.A.
Wenderoth , Lind & Ponack, L.L.P.
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