Ships – Fenders
Reexamination Certificate
2000-06-05
2001-09-18
Morano, S. Joseph (Department: 3617)
Ships
Fenders
C267S140000, C405S215000
Reexamination Certificate
active
06289836
ABSTRACT:
BACKGROUND OF THE INVENTION
This invention relates to marine fenders for mounting on objects such as docks, piers, seawalls, and the like to cushion collisions with other objects such as boats, rafts, and the like and more specifically to an extruded marine fender with unique energy absorbing properties.
DESCRIPTION OF THE PRIOR ART
Fenders for this purpose are well known in the prior. They include old tires, woven rope bundles, and extruded resilient tubes with attached flanges for fastening to objects. A compromise is generally made between structure strong enough to resist great force and soft enough to avoid damage.
SUMMARY OF THE INVENTION
It is accordingly an object of the invention to provide an extruded structure with a sufficiently soft external surface to cushion a colliding object without damage thereto, while providing an internal structure with greater resistance to deformation to resist great force. The fender of the invention includes an outer cylindrical surface and an inner cylindrical surface. The two cylindrical surfaces have a common axis. The two cylinders are joined by a plurality of strips, which transmit forces on the outer surface to the inner cylinder, as the outer cylinder yields to these forces, as well as absorbing some of the impact energy. Having a smaller radius, the inner cylinder will not yield as readily, all other things being equal. Arches are well known for their ability to hold great loads. The yielding of the outer cylindrical surface absorbs some of the energy of impact, and presents a larger surface to the impacting object. Means continuous with the outer cylinder are further provided for attachment of the fender to one or more planar surfaces, such as pilings, seawalls, docks, floating platforms, and bulkheads. These include one or more planar panels that join the inner and outer cylinders and terminate in mounting flanges. Whatever forces are not absorbed by the fender are transmitted by the planar panel(s) to the object on which the fender is mounted. These and other objects, features, and advantages of the invention will become more apparent when the detailed description is studied in conjunction with the drawings in which like elements are designated by like reference characters in the various drawing figures.
REFERENCES:
patent: 3169756 (1965-02-01), Miller
patent: 3411304 (1968-11-01), Miller
patent: 3638985 (1972-02-01), Barton et al.
patent: 4063526 (1977-12-01), Ueda
patent: 4072334 (1978-02-01), Seegmiller
patent: 4281610 (1981-08-01), Young
patent: 5031564 (1991-07-01), Beckerer, Jr.
patent: 5269248 (1993-12-01), Lee
patent: 5429063 (1995-07-01), Rosenkranz
patent: 5562364 (1996-10-01), Darder-Alomar
patent: 5762016 (1998-06-01), Parsons
patent: 86/00051 (1986-01-01), None
Blum Alvin S.
Morano S. Joseph
Wright Andy
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