×

Portable hydraulic system

  • US 5,678,982 A
  • Filed: 07/26/1995
  • Issued: 10/21/1997
  • Est. Priority Date: 07/27/1994
  • Status: Expired due to Term
First Claim
Patent Images

1. A self-contained, mobile hydraulic system comprising:

  • a housing;

    a hydraulic pump;

    an electric motor linked to the pump;

    a self-contained electricity source coupled to the pump;

    a reservoir fluidly coupled to the pump; and

    a control system to vary the motor speed,wherein the control system comprises a first current path for use with load operations and a second current path for use with no-load operations whereby a control system switch selectively directs current to either the first current path or the second current path, and wherein the pump, the motor, the electricity source and the reservoir are secured to the housing.

View all claims
  • 2 Assignments
Timeline View
Assignment View
    ×
    ×