×

Fluid pump

  • US 6,808,121 B2
  • Filed: 02/11/2003
  • Issued: 10/26/2004
  • Est. Priority Date: 02/11/2003
  • Status: Expired due to Fees
First Claim
Patent Images

1. A fluid pump comprising:

  • a motor;

    a material pump interconnecting a material reservoir and a material dispenser; and

    a closed-loop pressure regulation system between said motor and said material pump comprising;

    a hydraulic pump connected to and driven by said motor;

    an impeller connected between said hydraulic pump and said material pump;

    a pressure regulator to regulate pressure in said closed-loop pressure regulation system; and

    an expandable hydraulic fluid reservoir.

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