Car door hinge

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 5475897
SERIAL NO

08153292

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A car door hinge comprises a rotating member 2 hinged on a fixed member I by means of a hinge pin 3. One end 5 of a wire spring 4 is attached to a point on the rotating member 2 distant from the hinge pin, and the other end 8 of the wire spring 4 is attached to a point on the fixed member 1 inside a sector of a circle defined by the hinge pin 3 and an arc subtended at the hinge pin 3 which is described by the end 5 as the rotating member rotates. A spring restoring force therefore acts during the opening and closing of the door so that the door always opens and closes properly. Moreover, the spring occupies a minimum of space, and the rotation of the door is stopped at a predetermined angle.

First Claim

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Patent Owner(s)

Patent OwnerAddress
MITSUBISHI STEEL MFG CO LTDTOKYO 104-8550

International Classification(s)

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  • 1993 Application Filing Year
  • E05F Class
  • 119 Applications Filed
  • 49 Patents Issued To-Date
  • 41.18 % Issued To-Date
Click to zoom InYear of Issuance% of Matters IssuedCumulative IssuancesYearly Issuances19931994199519960255075100

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Asari, Tomoyuki Okazaki, JP 1 10
Kato, Kouichi Sakura, JP 42 307
Satoh, Motoyuki Ichihara, JP 2 20
Suzuki, Katsuo Tokyo, JP 14 255

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Patent Citation Ranking

  • 10 Citation Count
  • E05F Class
  • 3.39 % this patent is cited more than
  • 30 Age
Citation count rangeNumber of patents cited in rangeNumber of patents cited in various citation count ranges2371162101 - 1011 - 2021 - 3031 - 4041 - 500102030402.557.512.51517.522.52527.532.53537.5

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