Evanite Fiber Corporation

Hollingsworth & Vose Company

John D Windisch

George C Zguris

Patrick Svoboda

Yuri Vulfson

Ronald D Reher

Steven J Russell

William B Brecht

Antonio L Ferreira

Larry K Coon

Ron Reher

Disclosed are glass compositions, glass fiber compositions, glass fiber battery separators, glass fiber filter media, battery additives and active materials formed with glass compositions disclosed, glass fiber radiation shields, and glass fiber paper compositions. Certain embodiments include, among other components, bismuth oxide. Certain embodiments include about 0.5-30% bismuth oxide of the composition by weight and silica oxide at about 54-70% of the composition by weight. Embodiments may also include other components. For example, zinc oxide can make up about 0.01-3% of the composition by weight.

Batteries containing bismuth glass compositions

Glass compositions

A duct assembly is employed for directing a central air flow upwardly toward the rotating spinner assembly of a rotary-type fiberizer that produces a downwardly flowing column of fibers. The central air flow eliminates the low-pressure zone that normally occurs beneath the spinner assembly of conventional fiberizers. The cross-sectional profile of a lower portion of the duct is vertically elongated where the duct passes through the fiber column so as to facilitate the flow of the fiber column over the duct. A shielding member can be positioned to deflect the central air flow away from the spinner assembly and against the interior of the fiber column to insulate the spinner assembly from the relative cool air flow. In another embodiment, a conduit extends through the fiberizer spinner assembly and directs a cooling gas beneath the spinner assembly within the interior of the fiber column.

Apparatus for making fibers

Methods of modifying fibers, such as glass fibers, are disclosed. The modified fibers can be used, for example, in a lead acid battery.

Methods of modifying fibers

Disclosed are glass compositions and glass fibers formed from certain embodiments of the disclosed glass compositions. Certain embodiments of the glass compositions include, among other components, bismuth oxide. Certain embodiments of the glass composition include about 0.5&#x2013;30% bismuth oxide of the composition by weight and silica oxide at about 54&#x2013;70% of the composition by weight. Embodiments of the glass compositions may also include other components. For example, zinc oxide can make up about 0.01&#x2013;5% of the composition by weight.

Disclosed are glass compositions, glass fiber compositions, glass fiber battery separators, glass fiber filter media, battery additives and active materials formed with glass compositions disclosed, glass fiber radiation shields, and glass fiber paper compositions. Certain embodiments include, among other components, bismuth oxide. Certain embodiments include about 0.5&#x2013;30% bismuth oxide of the composition by weight and silica oxide at about 54&#x2013;70% of the composition by weight. Embodiments may also include other components. For example, zinc oxide can make up about 0.01&#x2013;3% of the composition by weight.

The separator (20) comprises a mat of glass micro-fibers and a binder. The binder is an aqueous mixture of colloidal silica particles and a sulfate salt. The mat is impregnated with the binder, compressed, and dried into a rigid state that makes the separator easy to handle. The binder is formulated to release the mat from the compressed state contacted by the sulfuric acid electrolyte between the electrode plates (24, 26) of the battery. The mat expands against the electrode plates to provide the separator-to-electrode contact that is necessary for proper battery performance. The silica particles of the binder then facilitate oxygen transport between the battery electrodes (24, 26).

Growing community of inventors

Corvallis, OR, United States of America

John D Windisch