Class / Patent application number | Description | Number of patent applications / Date published |
181291000 | With membrane outer layer | 8 |
20090038883 | SOUND-ABSORBING PANEL - The present invention relates to a sound-absorbing panel in which the structure of a vibration type sound-absorbing panel for absorbing and offsetting sound waves belonging to a low frequency band is modified to improve a sound absorption effect. A sound-absorbing panel comprises a panel body opened on a lower end thereof and formed on the lower end thereof with a rib which extends outward by a predetermined length, and a plurality of sound-absorbing holes defined on an upper surface of the panel body and possessing a sectional shape of a predetermined figure, each sound-absorbing hole being tapered downward to have an inside space which has a gradually decreasing size and then linearly perforated to have an inside space which has a constant size. | 02-12-2009 |
20110100748 | MULTILAYER SOUND ABSORBING SHEET - A multilayer sound absorbing sheet including a film layer having through-micro bores and apertures, and a fibrous material layer disposed on the film layer is provided. A method of absorbing sound including providing the multilayer sound absorbing sheet of the present disclosure and positioning the multilayer sound absorbing sheet between an acoustic source and a sound-reflecting surface is also provided. | 05-05-2011 |
20110100749 | MULTILAYER SOUND ABSORBING STRUCTURE COMPRISING MESH LAYER - A multilayer sound absorbing structure, comprising a first microperforated film, a mesh layer and a second microperforated film disposed in this order is provided. | 05-05-2011 |
20130133978 | Acoustic Panel - A multilayered acoustic panel ( | 05-30-2013 |
20130327590 | SOUND PROOF MEMBRANE - A sound barrier membrane comprises of a decoupling layer, a barrier layer and a dampening layer. The membrane also provides crack isolation, and acts as a vapor barrier. Numerous materials are disclosed which can be used to create these layers. Methods for assembly of the sound barrier membrane are also disclosed. | 12-12-2013 |
20130333978 | WATERPROOF SOUND-TRANSMITTING MEMBRANE AND ELECTRICAL PRODUCT - Provided is a waterproof sound-transmitting membrane | 12-19-2013 |
20150317972 | LOUDSPEAKER MEMBRANE AND METHOD FOR MANUFACTURING SUCH A MEMBRANE - The invention relates to a loudspeaker membrane having a sandwich structure, having a central web separating two layers of material based on high-rigidity threads impregnated with a polymer resin, characterized in that the central web is formed from a layer of material based on oriented natural fibres that are impregnated with a polymer resin. | 11-05-2015 |
20160090745 | ENTANGLED NET PRODUCT WITH CRUMB - An entangled net having a crumb dispersed therein may be used as a sound deadening material in a flooring system. The crumb may be adhered to said entangled net. The entangled net may include a first barrier layer affixed to an upper surface of said entangled net and/or a second barrier layer affixed to a lower surface of said entangled net. The crumb may be selected from the group consisting of: rubber; foam; natural elastic materials; synthetic elastic materials; fibers; and combinations thereof. The method of use and manufacture are also disclosed. | 03-31-2016 |