×

Sound isolation plate structure

  • US 6,082,489 A
  • Filed: 03/09/1998
  • Issued: 07/04/2000
  • Est. Priority Date: 03/07/1997
  • Status: Expired due to Term
First Claim
Patent Images

1. A sound isolation structure comprising:

  • a a single, flat perforated board in which a plurality of holes are exclusively formed; and

    a plurality of cylindrical pipe-like portions which extend from peripheral portions of the plurality of holes;

    wherein;

    a diameter and a length of a bore defined by each of the pipe-like cylindrical portions are selected in conjunction with a thickness of the single, flat perforated board to define a plurality of first and second pneumatic vibration systems wherein the air which is located within each of the pipe-like cylindrical portions acts as a first mass, while a first portion of the air which is located adjacent the outer diameter of the pipe-like cylindrical portions acts as a second mass and a remaining second portion of the air which is located adjacent the outer diameter of the pipe-like cylindrical portions acts as a spring which is associated with the second mass.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×