Flexible constant-force pallet lever
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United States of America Patent
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Mar 14, 2017
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N/A
app pub date -
Sep 3, 2013
filing date -
Sep 7, 2012
priority date (Note) -
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Abstract
A pallet lever including a head arranged to cooperate with an escape wheel and a fork arranged to cooperate with a balance. The angular position of the fork is variable relative to the head. A flexible strip provides the only permanent, mechanical connection between the head and the fork. An escape mechanism includes a plate, an escape wheel and a balance, cooperating with the pallet lever. The flexible strip is mounted pre-stressed buckled between the head and the fork, the pallet lever forming a bi-stable system including at least two stable states and two metastable states.
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