Proterra Inc.

Martin Marietta Materials, Inc.

Stephen Misencik

Donald Morris

Michael C Walker

Dale Hill

Shaun Onorato

John Winkel

Michael Fields

Paul E Peterson, Jr

Michael Walker

A low-floor electric bus includes a plurality of battery packs mounted under the floor of such that the floor inside the bus between a front axle and a rear axle of the bus is substantially flat. Each battery pack may include an enclosure and multiple battery modules positioned within the enclosure. And, each battery module may include a plurality of battery cells electrically connected together.

Electric bus

The invention provides for a high occupancy or heavy-duty vehicle with a battery propulsion power source, which may include lithium titanate batteries. The vehicle may be all-battery or may be a hybrid, and may have a composite body. The vehicle battery system may be housed within the floor of the vehicle and may have different groupings and arrangements.

Low-floor electric vehicle

Low-floor electric bus

Vehicle battery systems and methods

Various embodiments of the present invention provide a blast-resistant reinforcement assembly and/or system for engaging a surface of an existing structure to protect the structure from an applied force, such as an explosive detonation. The assembly includes one or more energy absorbing panels that may be attached to the structure. The energy absorbing panels include a core material configured to absorb some portion of the applied force by pulverizing in response to the applied force. In some embodiments, the energy absorbing panels also include one or more ballistic-resistant composite panels configured to protect the core material and the underlying existing structure from debris. Some embodiments further provide one or more energy deflecting panels engaged with the plurality of energy absorbing panels so as to be disposed between the energy absorbing panels and the location of the applied force for at least partially deflecting the applied force.

Modular blast-resistant panel system for reinforcing existing structures

Growing community of inventors

Raleigh, NC, United States of America

Stephen Misencik