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:
Sep. 19, 2017
Filed:
Nov. 11, 2014
Philips Lighting Holding B.v., Eindhoven, NL;
Cornelus Hendricus Bertus Arnoldus Van Dinther, Eindhoven, NL;
Ronaldus Maria Aarts, Eindhoven, NL;
Gerben Kooijman, Eindhoven, NL;
Okke Ouweltjes, Eindhoven, NL;
Armin Gerhard Kohlrausch, Eindhoven, NL;
Hendrikus Hubertus Petrus Gommans, Eindhoven, NL;
Jasper Van Dorp Schuitman, Eindhoven, NL;
PHILIPS LIGHTING HOLDING B.V., Eindhoven, NL;
Abstract
A room divider () for dividing a room into two sub-portions (R, R) and for attenuating sound (S, S) travelling between the two sub-portions is provided. The room divider comprises hollow cylindrical elements () arranged periodically for dividing the room into the two sub-portions. At least some of the hollow cylindrical elements have a cylindrical shell () with at least one slit () extending in an axial direction () of the shell. The shell extends continuously along the perimeter of the corresponding hollow cylindrical element from one side () of the at least one slit to another side () of the at least one slit. Each of the at least one slit faces in a local elongation direction () of the room divider for increasing acoustic symmetry with respect to the two sub-portions. The use of destructive interference and resonance to attenuate sound allows for a less bulky/heavy acoustically absorbing room divider.