Hydraulic and earth engineering – Marine structure or fabrication thereof – Structure protection
Reexamination Certificate
2009-11-11
2011-10-04
Lagman, Frederic L (Department: 3672)
Hydraulic and earth engineering
Marine structure or fabrication thereof
Structure protection
C405S212000, C114S219000
Reexamination Certificate
active
08029209
ABSTRACT:
A load absorbing device or other resilient device, such as a fender, bumper, or rub rail, for protecting an object, such as a dock or boat, from an impact force delivered by another object includes a leaf spring portion connected to the object. The leaf spring portion includes a fixed end and a free end operable to transmit to the object a fraction of the impact force and is designed to collapse upon loading with the impact force to thereby absorb energy that would otherwise be transferred directly to the object. In a preferred embodiment, the leaf spring portion is extruded of a high-strength abrasion-resistant plastic material having a low coefficient of friction, such as ultra high molecular weight polyethylene (UHMWPE). The leaf spring portion may include multiple mounting holes sized to receive mounting fasteners for rigidly connecting the device to the object.
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Lagman Frederic L
Stoel Rives LLP
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