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Mobile loaders

  • US 4,690,606 A
  • Filed: 11/04/1985
  • Issued: 09/01/1987
  • Est. Priority Date: 03/30/1984
  • Status: Expired due to Fees
First Claim
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1. A method of operating a loader, the method comprising the steps of raising a platform by mechanical lifting means, the mechanical means including a gearbox, at least one ballscrew linked to said platform and being driven by at least one electric motor means powered from battery means, and then lowering said platform, the descent being controlled by regenerative braking, and wherein said at least one electric motor means is switched to function as generator means by control means, and power from said generator means is used to at least partially recharge said battery means.

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