Landing gear for semitrailers

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 5538225
SERIAL NO

08221397

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A landing gear for semitrailers includes a two-speed single reduction gear assembly having fewer, smaller, and simpler parts, resulting in a compact single reduction gear assembly and cost efficient landing gear unit with a unique clutch-shifting mechanism to provide for shifting from one ratio to another. The single reduction gear assembly is disposed on and about vertically offset input and output shafts further resulting in an easy to crank and shift landing gear unit capable of achieving standard crank handle turn to vertical leg travel distance ratios. The low gear or low speed ratio of the landing gear unit can be varied within a broad range during manufacture, if desired, generally without increasing the overall size or complexity of the two-speed single reduction gear assembly. The landing gear can further include a universal mounting feature and is durable and simple to use.

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Patent Owner(s)

Patent OwnerAddress
JOST INTERNATIONAL1770 HAYES GRAND HAVEN MI 49417

International Classification(s)

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  • 1994 Application Filing Year
  • B60S Class
  • 94 Applications Filed
  • 26 Patents Issued To-Date
  • 27.66 % Issued To-Date
Click to zoom InYear of Issuance% of Matters IssuedCumulative IssuancesYearly Issuances19941995199619970255075100

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
VanDenberg, Ervin Massillon, OH 13 264

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Patent Citation Ranking

  • 29 Citation Count
  • B60S Class
  • 96.77 % this patent is cited more than
  • 29 Age
Citation count rangeNumber of patents cited in rangeNumber of patents cited in various citation count ranges22811 - 1011 - 2021 - 300123456789101112131415161718192021222324

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