FLUID TRANSPORTING DEVICE OF THE PERISTALTIC TYPE WITH A PUSH PIN AND PUSH PLATE ARRANGEMENT

• US 20120164012A1
• Filed: 03/05/2012
• Published: 06/28/2012
• Est. Priority Date: 11/01/2005
• Status: Active Grant

• Current Assignee: Seiko Epson Corporation (Seiko Group)
• Original Assignee: Seiko Epson Corporation (Seiko Group)
• Inventors: MIYAZAKI, Hajime, KAWASUMI, Kazuo, USHIKOSHI, Kenichi
• Granted Patent: US 8,834,138 B2
• Time in Patent Office: Days
• US Class Current: 417/474
• CPC Class Codes: A61M 5/14232 Roller pumps
• CPC Class Codes: F04B 43/082 the tubular flexible member being pressed against a wall by a number of elements, each having an alternating movement in a direction perpendicular to the axes of the tubular member and each having its own driving mechanism
• CPC Class Codes: F04B 43/12 having peristaltic action
• CPC Class Codes: F04B 43/1223 the actuating elements, e.g. rollers, moving in a straight line during squeezing
• CPC Class Codes: F04B 43/1253 by using two or more rollers as squeezing elements, the rollers moving on an arc of a circle during squeezing

Abstract

A fluid transporting device includes an elastic tube, a tube frame that holds the elastic tube in an arc, a rotary push plate arranged in the arc for facilitating fluid flow inside the elastic tube, and a plurality of push pins disposed between the elastic tube and the center of the arc. Each push pin includes a semispherical end portion that contacts the rotary push plate, a pushing end portion that places a bias on the elastic tube, and adjacent end portions of at least two push pins close the elastic tube when the semispherical end portions are pushed by an outer circumference arc of the rotary push plate.

Claims

1. A fluid transporting device, comprising:

an elastic tube;

a tube frame that holds the elastic tube in an arc;

a rotary push plate arranged in the arc for facilitating fluid flow inside the elastic tube; and

a plurality of push pins disposed between the elastic tube and the center of the arc;

wherein each push pin includes;

a semispherical end portion that contacts the rotary push plate;

a pushing end portion that places a bias on the elastic tube; and

adjacent end portions of at least two push pins close the elastic tube when the semispherical end portions are pushed by an outer circumference arc of the rotary push plate.

2. The fluid transporting device as set forth in claim 1, further comprising:

a fluid storing container coupled to the elastic tube.