Flywheel
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Dec 18, 1990
Grant Date -
N/A
app pub date -
May 11, 1989
filing date -
May 11, 1989
priority date (Note) -
Expired
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Abstract
An exercise bicycle flywheel (1) comprises a pair of facing concave sheet metal discs (15A, 15B). The space defined between the discs is filled with a heavy material (M) which is a mixture of hematite chips, magnetite powder, hydrated lime, portland cement, and water.
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