초록 ▼

A system for generating substantially constant fluid pressure is provided for forcing fluid from a variable volume container. The system includes a roller that rotates in response to a constant applied torque to force fluid from the flexible container under a substantially constant pressure. Two spa

A system for generating substantially constant fluid pressure is provided for forcing fluid from a variable volume container. The system includes a roller that rotates in response to a constant applied torque to force fluid from the flexible container under a substantially constant pressure. Two spaced apart parallel rollers can exert force on both sides of the container.

대표청구항 ▼

A fluid separation system comprising a variable volume container for accumulating a desired volume of fluid, means for separating the fluid into component parts, means for holding said variable volume container, including an element rotatably supported adjacent to said variable volume container, and

A fluid separation system comprising a variable volume container for accumulating a desired volume of fluid, means for separating the fluid into component parts, means for holding said variable volume container, including an element rotatably supported adjacent to said variable volume container, and means including a mass subject to the force of gravity for generating an essentially constant torque to press said element against said variable volume container to reduce its volume while rotating said element to advance said container by said element and sequentially express the accumulated fluid from said container into said separation means at a substantially constant pressure, said mass being coupled to said rotatably mounted element by an elastic tubing member to slow the rate of descent of said mass.