Structure of a hinge

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 6629334
APP PUB NO 20020062533A1
SERIAL NO

09921340

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A structure of a hinge is provided. The hinge includes a main leave secured to a door frame and a subordinate leave joint with the main leave by a pintle and secured to a door. The main leave has a first helical surface in a lower knuckle and the subordinate leave has a second helical surface in a central knuckle engaged with the first helical surface. Further the first helical surface has a vertical end and a plurality of domes engageable with a vertical end and a plurality of semi-circular recesses. So that when the door is opened, it will gradually and slowly closed on its own gravity.

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Patent Owner(s)

Patent OwnerAddress
HUANG YUEH-NUNot Provided

International Classification(s)

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  • 2002 Application Filing Year
  • E05F Class
  • 203 Applications Filed
  • 72 Patents Issued To-Date
  • 35.47 % Issued To-Date
Click to zoom InYear of Issuance% of Matters IssuedCumulative IssuancesYearly Issuances2002200320042005200620072008200920100255075100

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Huang, Yueh-Nu No. 56, Min Sheng Street, Feng-Yuan City 42041, TW 2 9

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Patent Citation Ranking

  • 5 Citation Count
  • E05F Class
  • 0 % this patent is cited more than
  • 22 Age
Citation count rangeNumber of patents cited in rangeNumber of patents cited in various citation count ranges37381832111 - 1011 - 2021 - 3031 - 4041 - 5051 - 6071 - 8002.557.51012.51517.52022.52527.53032.53537.540

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