Dual-structure helmet and method of manufacturing the same
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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Oct 22, 2002
Grant Date -
N/A
app pub date -
Nov 29, 1999
filing date -
Oct 26, 1999
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Disclosed is a helmet or a safety cap for protecting the rider's head and a method of manufacturing the same, in which the main body of the helmet has a dual-structure so as to reduce work process when an outer surface of the helmet is painted, and weight thereof. The main body of the helmet has a dual-structure in that an outer surface thereof is formed of a thermoplastic for an aesthetic enhancement and an inner surface thereof is formed of FRP or a mixture of aramide fiber, polyethylene fiber, vinylon, carbon fiber. Thus-formed dual structure of the helmet body contributes to enhancement in impact resistance and convenience in painting, decreasing an overall weight of the helmet.
First Claim
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International Classification(s)
Cited Art Landscape
Patent Citation Ranking
- 6 Citation Count
- B32B Class
- 2.15 % this patent is cited more than
- 23 Age