Cardinal Ig Company

Eric Berner

Andrew DeMiglio

Eric Bjergaard

Chad Peters

Timothy Braun

Nicholas Schleder

Peter Whaley

Zachary Franz

An electrical driver can be used to provide electrical drive signals to a first and second electrically controllable optical privacy glazing structures. A first electrical drive signal can be applied to the first privacy glazing structure and a second electrical drive signal can be applied to the second privacy glazing structure. Applying the first and second electrical drive signal can comprise temporally staggering delivery of the first and second electrical drive signals such that a peak power draw and/or a peak current draw from the first privacy glazing structure is temporally offset from a peak power draw and/or a peak current draw from the second privacy glazing structure. Staggering can include delaying the application of one electrical drive signal relative to the other, phase shifting one electrical drive signal relative to the other, or a combination thereof.

Staggered driving electrical control of a plurality of electrically controllable privacy glazing structures

A power transfer assembly includes a window balance assembly, a pivot bar, and an electrically conductive pathway. The window balance assembly includes a first portion configured to be fixed in place and a second portion configured to be movable relative to the first portion. The pivot bar is conductively coupled to the second portion of the window balance assembly. And, the electrically conductive pathway extends between the window balance assembly and the pivot bar.

Power transfer systems for movable privacy glazing structures

A privacy glazing structure may include an electrically controllable optically active material that provides controlled transition between a privacy or scattering state and a visible or transmittance state. To make electrical connections with electrode layers that control the optically active material, the privacy glazing structure may include electrode engagement regions. In some examples, the electrode engagement regions are formed as notches in peripheral edges of opposed panes bounding the optically active material. The notches may or may not overlap to provide a through conduit in the region of overlap for wiring. In either case, the notches may allow the remainder of the structure to have a flush edge surface for ease of downstream processing.

Electrical connection configurations for privacy glazing structures

A hinge assembly includes a first arm, a second arm, a rotatable pin coupling, and a power transfer conduit. The rotatable pin coupling rotationally couples the second arm to the first arm. The first arm defines a first portion of a channel, the second arm defines a second portion of the channel, and rotatable pin coupling defines a third portion of the channel. The power transfer conduit extends through the first portion of the channel at the first arm, the third portion of the channel at the rotatable pin coupling, and the second portion of the channel at the second arm.

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Ramsey, MN, United States of America

Eric Berner