Hydraulic system and apparatus for use with vehicle accessory units

  • US 4,999,935 A
  • Filed: 05/31/1990
  • Issued: 03/19/1991
  • Est. Priority Date: 05/31/1990
  • Status: Expired due to Term
First Claim
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1. A hydraulic system comprising, in combination,a plow blade,means for mounting said plow blade for vertical movement and horizontal movement,a hydraulic power unit including a hydraulic fluid reservoir, a pump communicating with said hydraulic fluid reservoir and lift hydraulic cylinder means,means connecting said lift hydraulic cylinder to said plow blade for moving said plow blade vertically,angling hydraulic cylinder means for selectively moving said blade horizontally in opposite directions,a manifold including means defining fluid flow passages in said manifold communicating with said hydraulic cylinder means and solenoid valve means in said fluid flow passages and operative to selectively direct fluid to said lift hydraulic cylinder means and angle hydraulic cylinder means, andsaid manifold connected to and mounted on said hydraulic power unit.

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