Bistable actuation techniques, mechanisms, and applications
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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Jun 28, 2005
Grant Date -
Feb 13, 2003
app pub date -
Jan 18, 2002
filing date -
Jan 19, 2001
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A bistable structure provided by the invention is characterized as including a deflection element that has mechanically constrained end points and a compliant span between the end points that is substantially free to deflect between two stable positions when a force is applied at a point along the span. The deflection element span is provided, as-fabricated, curved in one of the two stable positions and in a mechanically unstressed condition along the length of the span. The as-fabricated curve of the deflection element span includes a curve maxima at a point along the span length that is at least about ¼ of the span length from the end points of the span. The deflection element span is constrained to substantially prohibit development of a second bending mode that is characteristic for the span as the element deflects between the two stable positions.
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