Ultra lightweight segmented ladder/bridge system

Patent No. 8,800,718

Issued: August 12, 2014
Filed: May 10, 2011
Term Extension: 362 days

Inventors: Allred, III; Jimmie B. (Skaneateles, NY), Kummer; Joseph (Fayetteville, NY), Griswold; Michael D. (Syracuse, NY), Hall; Michael J. (Camillus, NY), Bush; Matthew A. (LaFayette, NY) 
Assignee: Allred & Associates Inc. (Elbridge, NY)


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.

Reference to Related Applications

This application claims one or more inventions which were disclosed in Provisional Application No. 61/333,320, filed May 11, 2010, entitled "ULTRA LIGHTWEIGHT SEGMENTED LADDER/BRIDGE SYSTEM", Provisional Application No. 61/350,550, filed Jun. 2, 2010, entitled "ULTRA LIGHTWEIGHT SEGMENTED LADDER/BRIDGE SYSTEM" and Provisional Application No. 61/373,513, filed Aug. 13, 2010, entitled "ULTRA LIGHTWEIGHT SEGMENTED LADDER/BRIDGE SYSTEM". The benefit under 35 USC .sctn.119(e) of the United States provisional applications is hereby claimed, and the aforementioned applications are hereby incorporated herein by reference.

This is also a continuation-in-part of co-pending application Ser. No. 12/646,026, filed Dec. 23, 2009, which claims one or more inventions which were disclosed in Provisional Application No. 61/141,402, filed Dec. 30, 2008, entitled "DUAL-USE MODULAR CARBON-FIBER LADDER AND BRIDGE" and Provisional Application No. 61/151,327, filed Feb. 10, 2009, entitled "ULTRA LIGHTWEIGHT SEGMENTED LADDER/BRIDGE SYSTEM". The aforementioned applications are hereby incorporated herein by reference.


Go Back for more representative patents.


Home || Intellectual Property || Patents || Trademarks || Copyrights


Brown & Michaels, PC
400 M & T Bank Building
118 North Tioga Street - The Commons
Ithaca, NY 14850
Phone: (607) 256-2000 Fax: (607) 256-3628

e-mail: bpm@bpmlegal.com

© 2014 Brown & Michaels PC