Method of manufacturing a protective helmet and protective helmet manufactured in accordance with said method
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United States of America Patent
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Issued Date -
Feb 28, 2019
app pub date -
Aug 24, 2018
filing date -
Aug 25, 2017
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Abstract
A method of manufacturing a protective helmet, in particular a bicycle helmet, that has a shock-absorbing helmet body having a concave inner side and a convex outer side and that has an outer shell arranged at the outer side of the helmet body. The method includes the steps: placing the outer shell into a mold; and filling a casting material into the mold at at least one filling point to form the helmet body. The casting material connects to an inner side of the outer shell. The filling point for the casting material is provided at the outer side of the formed helmet body, with the outer shell having an opening in the region of the filling point.
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