Fluid handling – Line condition change responsive valves – Pilot or servo controlled
Reexamination Certificate
2008-06-18
2011-11-01
Hepperle, Stephen M (Department: 3753)
Fluid handling
Line condition change responsive valves
Pilot or servo controlled
C137S492500, C137S494000, C251S058000, C251S242000, C251S282000, C251S368000
Reexamination Certificate
active
08047226
ABSTRACT:
A pressure relief valve includes a lever plate, a first spring, a fitting, and a guide assembly. The fitting has a first side, a second side, and a flange having a rounded end and includes a surface with which a first end of the first spring contacts. The guide assembly has two sides, two concavities, and at least a portion of the guide assembly extends through the opening of the lever plate, the first concavity is formed on the first side of the guide assembly and contacts the fitting flange rounded end, and the second concavity is aligned coaxially with the first concavity. A rounded end of a rod of the diaphragm assembly contacts the second concavity. The second spring is adapted to supply a second force against the diaphragm assembly to move the lever plate in a second direction that is substantially opposite the first direction.
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Casillas Larry Robert
Gutierrez Javier
Kesner Ed
Hepperle Stephen M
Honeywell International , Inc.
Ingrassia Fisher & Lorenz P.C.
Jellett Matthew W
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