Leveling system for aerial platforms

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 5944138
SERIAL NO

08923058

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A system for leveling a personnel carrying platform mounted on the end of an elongated vehicle mounted boom. A pendulum controlled hydraulic valve controls the application of fluid pressure to a pair of cylinders equipped on their ends with a series of links extending along a drum connected to the platform mounting pin. When the platform deviates from a level position, one of the cylinders is retracted to turn the platform mounting pin in a direction to correct the deviation. An interlock valve disables the platform leveling system unless the boom is being moved. A manual override valve allows the platform to be tilted for storage or other reasons.

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Patent Owner(s)

Patent OwnerAddress
ALTEC INDUSTRIES INC210 INVERNESS CENTER DRIVE BIRMINGHAM AL 35242

International Classification(s)

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  • 1997 Application Filing Year
  • E04G Class
  • 156 Applications Filed
  • 43 Patents Issued To-Date
  • 27.57 % Issued To-Date
Click to zoom InYear of Issuance% of Matters IssuedCumulative IssuancesYearly Issuances199719981999200020010255075100

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Burgoon, Roger Leigh St. Joseph, MO 1 32
Clevenger, R Dustin St. Joseph, MO 1 32
Player, Bryan D St. Joseph, MO 2 32
Vollmer, Edwin L St. Joseph, MO 3 52

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Patent Citation Ranking

  • 32 Citation Count
  • E04G Class
  • 95.79 % this patent is cited more than
  • 26 Age
Citation count rangeNumber of patents cited in rangeNumber of patents cited in various citation count ranges563185111101 - 1011 - 2021 - 3031 - 4041 - 5071 - 8081 - 900510152025303540455055606570

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