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Slack pulling carriage for logging operations

  • US 20040129662A1
  • Filed: 09/11/2003
  • Published: 07/08/2004
  • Est. Priority Date: 09/11/2002
  • Status: Active Grant
First Claim
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1. In a skyline logging carriage apparatus comprising a chassis with an internal combustion power plant, a main hydraulic pump with variable volume output driven by said power plant, a hydraulic motor driven by said main hydraulic pump and a sheave assembly driven by said hydraulic motor to move a logging skidline, the improvement comprising an electronic control system with a rotational rate sensor for said power plant and a main hydraulic pump volume output controller coupled to said rotational rate sensor.

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