Fluid handling – Destructible or deformable element controlled – Destructible element
Reexamination Certificate
2007-06-26
2007-06-26
Rivell, John (Department: 3753)
Fluid handling
Destructible or deformable element controlled
Destructible element
C137S068270, C220S089200, C072S057000, C072S379200
Reexamination Certificate
active
10491962
ABSTRACT:
A safety pressure relief device comprises an annular flange portion (22), a concave/convex dome portion (24) and a transition portion (26) between the flange portion (22) and the dome portion (24), the transition portion (26) comprising a linear extent (28) extending from the annular flange portion (22) at a first acute angle (θ1) to the plane of the flange portion (22), a tangent to the dome portion (24) at its junction with the transition portion (26) making a second acute angle (θ2) with the plane of the flange portion (22) which is greater than said first angle (θ1), a line of weakness being formed in and around part at least of the linear extent (28) of the transition portion (26).
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Coulson Phillip G.
Hayles Mark
Henderson Thomas
Elfab Limited
Hunt, Jr. Ross F.
Rivell John
Stites & Harbison PLLC
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