Dual-Use Modular Carbon-Fiber Ladder and Bridge
AssigneeAllred & Associates Inc.
InventorsJimmie B. Allred, III, Joseph Kummer, Michael D. Griswold, Michael J. Hall, Matthew A. Bush
Life of this patent
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Abstract
A dual-use ladder and bridge modular system preferably includes tubes, gussets, flanges, and/or joints. In a preferred embodiment, the tubes, gussets, flanges, and/or joints are made of carbon fiber. A method connects and disconnects modular carbon fiber ladder segments. Another method creates a lightweight carbon-fiber beam with exceptionally high stiffness and strength using a combination of carbon-fiber braid material, uni-directional cloth, and pultruded carbon-fiber strips. A carbon fiber ladder segment and tube connectors are also disclosed.
Claims21
1-17. (canceled)
A method of forming at least one carbon fiber ladder segment, comprising the steps of:
- a) permanently connecting a pair of tubular carbon fiber side rails having a first end and a second end to at least one carbon fiber rung such that the carbon fiber rung is perpendicular to the carbon fiber side rails and the carbon fiber rung connects the carbon fiber side rails;
- and
- b) adding a joint connector to at least one of the first end and the second end of each carbon fiber side rail.
26-44. (canceled)
Dependencies are inferred from the claim text.