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US 7,140,398 B2Granted
Sports equipment having a tubular structural member
AssigneeAlliance Design and Development Group, Inc.
InventorsDavid J. Dodge, William C. Doble
Life of this patent
Estimating the term…
Abstract
A tubular structural member that provides directional resistance. The tubular structural member has a flexural resistance that is greater in one direction than in another. The tubular structural member can be employed in variety of devices or structures so as to effect the overall stiffness of the device.
Claims12
A tubular structural member, comprising:
- a tube having a longitudinal axis, a flexural axis, and a stiff axis, where the flexural axis and the stiff axis extend radially away from the longitudinal axis and the tube has a flexural resistance that is greatest in a direction parallel to the flexural axis;
- and
- a tube wall having an outer diameter that is tapered along the longitudinal axis.
A tubular structural member, comprising:
- a tube having a longitudinal axis, a flexural axis, and a stiff axis, where the flexural axis and the stiff axis extend radially away from the longitudinal axis and the tube has a flexural resistance that is greatest in a direction parallel to the flexural axis;
- a tube wall having an outer diameter;
- and
- a device having a longitudinal axis and a cavity along the device longitudinal axis having an inner diameter that matches the tube wall outer diameter along the longitudinal axis of the tubular structural member, where the tubular structural member is inserted into the cavity, the tubular structural flexural axis is aligned radially within the device so as to provide the device with flexural resistance,
- wherein the tubular structural member is fixed in the cavity so as to maintain the alignment between the device bending plane and the tube flexural axis,
- wherein the tubular structural member is fixed within the cavity by an adhesive.
3 more elements
Dependencies are inferred from the claim text.