Headphone having a cord reel

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 6480611
APP PUB NO 20020012440A1
SERIAL NO

09891127

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A headphone includes a housing assembly having an electroacoustic transducer accommodated therein and an insertion hole defined therein. A winding mechanism is accommodated in the housing assembly for winding an input cord into the housing assembly. The winding mechanism includes a cord reel biased to wind the input cord therearound and an engagement member pivotally mounted in the housing assembly. When an input plug secured to one end of the input cord is inserted into the insertion hole, the input plug rotates the engagement member in a first direction, which in turn allows the cord reel to wind the input cord therearound. When the input plug is removed from the insertion hole, the engagement member rotates in a second direction counter to the first direction, allowing the input cord to be drawn out of the housing assembly and preventing the cord reel from winding the input cord therearound.

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First Claim

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Family

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Patent Owner(s)

  • MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.

International Classification(s)

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  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hashimoto, Junichi Neyagawa, JP 239 1676
Takakura, Eiichi Neyagawa, JP 13 147

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