×

Solid state fluid delivery system

  • US 5,693,016 A
  • Filed: 11/08/1995
  • Issued: 12/02/1997
  • Est. Priority Date: 11/08/1995
  • Status: Expired due to Term
First Claim
Patent Images

1. An apparatus for the rapid and repeatable delivery of small quantities of a fluid to an intended target, comprising:

  • A. at least one first housing having walls defining a dispensing chamber for said fluid, and at least one nozzle element defined in one of said walls for the discharge of said fluid; and

    B. at least one second housing communicating with said first housing, said second housing comprising pump means comprising a plurality of piezoelectric elements disposed in a stacked arrangement adjacent one another, each of said piezoelectric elements having at least one opening therein, said openings being journaled within each of said piezoelectric elements in axial alignment as between adjacent said piezoelectric elements, said axially aligned stacked piezoelectric elements being pliably sealed to one another whereby to define a non-porous chamber for receiving and holding a predetermined volume of said fluid, said plurality of piezoelectric elements being adapted for sequential excitation to simulate a peristaltic motion whereby to receive a predetermined volume of said fluid from said dispensing chamber, and thereafter to eject the same through said at least one nozzle element toward said target; and

    actuation means for exciting said pump means.

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