3m Innovative Properties Company

Hydro-quebec

Other

3m Innovative Properties

David D Lindeman

Michael K Domroese

Joseph Andrew Hoffman

Jennifer L Trice

Roger Rouillard

Vern E Radewald

Michel Gauthier

Thomas A Turgeon

Anthony Sudano

Michel Ranger

Jean Rouillard

Toshimi Shiota

Joseph-Robert-Gaetan Noel

Joseph-Robert-Ga&eacute;tan No&euml;l

Ming-Lai Lai

William E Wyllie, Ii

Phillip M Winter

Yvonne I Lund

Jerome M Fried

Philippe St-Germain

Charles B Dousette

Eric G Almquist

Laurent Eap

William E Ii Wyllie

A high-strength, self-ligating appliances with orthodontically desirable dimensions. The appliances incorporate a door slidably engaged to a channel in the body; one that can be opened or closed depending on the equilibrium position of an integral protrusion on the door. Cooperating grooves and rails on the body and the door can guide the door between the open and closed positions, and mitigate against unintentional detachment. Appliances including rails that result in improved labial pull strength are disclosed.

Ceramic self-ligating bracket with high labial pull strength

A mill roll analysis system is described that includes a user interface module, a structural analysis engine, and an analysis control script. The user interface module receives mill roll design data from a remote user via a computer network. The analysis control script automatically directs the structural analysis engine to define and evaluate an appropriate analytical model for the mill roll design based on the mill roll design data. The mill roll analysis system presents an intuitive web-based interface for capturing the mill roll design data, and may present predefined mill roll applications and mill roll types for selection for the user. As a result, the remote user need not be familiar with the underlying analytical modeling techniques, which may be highly-complex by nature. Consequently, a user may utilize the system to evaluate and improve mill roll design in order to achieve increased product performance.

Mill roll analysis system

An improved electrochemical generator is disclosed. The electrochemical generator includes a thin-film electrochemical cell which is maintained in a state of compression through use of an internal or an external pressure apparatus. A thermal conductor, which is connected to at least one of the positive or negative contacts of the cell, conducts current into and out of the cell and also conducts thermal energy between the cell and thermally conductive, electrically resistive material disposed on a vessel wall adjacent the conductor. The thermally conductive, electrically resistive material may include an anodized coating or a thin sheet of a plastic, mineral-based material or conductive polymer material. The thermal conductor is fabricated to include a resilient portion which expands and contracts to maintain mechanical contact between the cell and the thermally conductive material in the presence of relative movement between the cell and the wall structure. The electrochemical generator may be disposed in a hermetically sealed housing.

Method for transferring thermal energy and electrical current in thin-film electrochemical cells

An in-situ thermal management system for an energy storage device. The energy storage device includes a plurality of energy storage cells each being coupled in parallel to common positive and negative connections. Each of the energy storage cells, in accordance with the cell's technology, dimensions, and thermal/electrical properties, is configured to have a ratio of energy content-to-contact surface area such that thermal energy produced by a short-circuit in a particular cell is conducted to a cell adjacent the particular cell so as to prevent the temperature of the particular cell from exceeding a breakdown temperature. In one embodiment, a fuse is coupled in series with each of a number of energy storage cells. The fuses are activated by a current spike capacitively produced by a cell upon occurrence of a short-circuit in the cell, thereby electrically isolating the short-circuited cell from the common positive and negative connections.

In-situ short-circuit protection system and method for high-energy electrochemical cells

A surface treating article including a hub. The surface treating article and hub provide an improved mechanical interlock to each other. Preferably, the unitary surface treating article is molded to the hub.

Surface treating article including a hub

Rechargeable thin-film electrochemical generator

A thermal conductor for use with an electrochemical energy storage device is disclosed. The thermal conductor is attached to one or both of the anode and cathode contacts of an electrochemical cell. A resilient portion of the conductor varies in height or position to maintain contact between the conductor and an adjacent wall structure of a containment vessel in response to relative movement between the conductor and the wall structure. The thermal conductor conducts current into and out of the electrochemical cell and conducts thermal energy between the electrochemical cell and thermally conductive and electrically resistive material disposed between the conductor and the wall structure. The thermal conductor may be fabricated to include a resilient portion having one of a substantially C-shaped, double C-shaped, Z-shaped, V-shaped, O-shaped, S-shaped, or finger-shaped cross-section. An elastomeric spring element may be configured so as to be captured by the resilient conductor for purposes of enhancing the functionality of the thermal conductor. The spring element may include a protrusion that provides electrical insulation between the spring conductor and a spring conductor of an adjacently disposed electrochemical cell in the presence of relative movement between the cells and the wall structure. The thermal conductor may also be fabricated from a sheet of electrically conductive material and affixed to the contacts of a number of electrochemical cells.

Thermal conductor for high-energy electrochemical cells

In-situ short circuit protection system and method for high-energy

An improved electrochemical energy storing device includes a number of thin-film electrochemical cells which are maintained in a state of compression through use of an internal or an external pressure apparatus. A thermal conductor, which is connected to at least one of the positive or negative contacts of each electrochemical cell, conducts current into and out of the electrochemical cells and also conducts thermal energy between the electrochemical cells and thermally conductive material disposed on a wall structure adjacent the conductors. The wall structure includes electrically resistive material, such as an anodized coating or a thin film of plastic. The thermal conductors are fabricated to include a spring mechanism which expands and contacts to maintain mechanical contact between the electrochemical cells and the thermally conductive material in the presence of relative movement between the electrochemical cells and the wall structure. An active cooling apparatus may be employed external to a hermetically sealed housing containing the electrochemical cells to enhance the transfer of thermal energy into and out of the electrochemical cells. An integrated interconnect board may be disposed within the housing onto which a number of electrical and electro-mechanical components are mounted. Heat generated by the components is conducted from the interconnect board to the housing using the thermal conductors.

Thermal management system and method for a solid-state energy storing

Growing community of inventors

Hudson, WI, United States of America

David D Lindeman