The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 25, 1986
Filed:
Nov. 07, 1984
Raymond H Dean, Shawnee Mission, KS (US);
Tempmaster Corporation, North Kansas City, MO (US);
Abstract
A sound attenuator formed by a bank of at least three wall mounted tubes extending into a room from which noise originates and also into an adjacent occupied room. Each tube is cylindrical and has a length between one sixth and one third wavelength of sound in air at the highest frequency in the low frequency waveband in which the reactive acoustical properties of the tubes are effective. The diameter of each tube is less than about one sixth wavelength. The size, arrangement and spacing of the tubes are selected to take good advantage of the operative acoustical phenomena, including the quarter wavelength effect, the duct end loss effect and the multiple tube effect.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile