METHODS FOR MANUFACTURING A SPRING, A SPRING BRAKE, AND A SPRING BRAKE COMPRISING A SPRING
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United States of America Patent
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Issued Date -
Jun 11, 2020
app pub date -
Apr 14, 2017
filing date -
Apr 15, 2016
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Abstract
Disclosed is a method for manufacturing a spring for a spring brake, including a shaping and cutting step f) including the following sub-steps: —f1) shaping a raw wire into a coil with a plurality of raw turns, the raw wire having: raw portions that extend from the end of the raw wire over at least one raw turn, and an intermediate portion between the raw portions, —f2) separating the first raw portion and the second raw portion of the raw wire by cutting, after implementing sub-step f1), and —f3) shaping a first tab (5), at a first end of the intermediate portion, after sub-step f1), and —f4) shaping a second tab (7), at a second end of the intermediate portion opposite the first end, after sub-step f1).
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