Boa Technology Inc.

Josef Duller

Randon Kruse

Mark Stanley Soderberg

Thomas Pollack

Eric Whewell

Brendan Hoskens

Mark Clementi

David Roland

Charles Clay Corbett

Ryan Vogt

Michael Joseph Nickel

Eric Craig Irwin

Thomas Trudel

Ilya Minkin

Alessandro Manzato

Stefan Sporrer

Bobby Dickensheets

A differentially tightenable ski boot includes a lower shell and an upper cuff that is pivotally coupled with the lower shell. The ski boot includes a first tightening system that is coupled with the lower shell and a second tightening system that is coupled with the upper cuff. Each tightening system includes a reel based closure device, a tension member that is operably coupled with the reel based closure device, and at least one guide member that routes or directs the tension member along a path about the lower shell or upper cuff. The first tightening system and the second tightening system are operable independently of each other to independently and differentially tightening the lower shell and the upper cuff.

Reel based closure devices for tightening a ski boot

A reel based closure device includes a housing, a spool positioned within the interior region of the housing, a knob that is operably coupled with the spool and with the housing, and a rotation control component that is operably coupled with the knob. The knob is rotatable in a tightening direction to cause the spool to rotate within the housing and thereby wind the tension member about the spool. The knob is also rotatable in a loosening direction to cause the spool to rotate in an opposite direction within the housing and thereby unwind the tension member from about the spool. The rotation control component is configured to prevent accidental loosening of the tension member by inhibiting rotation of the knob in the loosening direction until a sufficient rotational force is exerted on the knob in the loosening direction.

Reel based closure system

A reel based closure device includes a housing, a tension member, a spool that is rotatably positioned within the housing, and a tightening component that is positioned axially above the spool and that is operably coupled therewith so that an operation of the tightening component causes the spool to rotate within the housing to wind the tension member about the spool. The reel based closure device also includes a coupling component that is separate from the tension member and that frictionally engages with a distal end of the tension member so that the coupling component is removably fixed to the tension member. The spool component includes a coupling feature within which the coupling component is positioned to attach the tension member to the spool.

Lace tightening device dial

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Louisville, CO, United States of America

Josef Duller