File:Gunness 4-way compression driver manifold, 1984.jpg
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Gunness_4-way_compression_driver_manifold,_1984.jpg (248 × 245 pixels, file size: 15 KB, MIME type: image/jpeg)
Summary
[edit]Description | Patent drawing of a 4-way manifold combining the outputs of four compression drivers to one horn loudspeaker. Invented by David Gunness in 1984, the patent assigned to Electro-Voice. This manifold was employed in the Electro-Voice MT-4 concert loudspeaker system. |
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Author or copyright owner |
David Gunness |
Source (WP:NFCC#4) | Original publication: US patent filed November 15, 1985, awarded December 16, 1986. Immediate source: http://fulcrum-acoustic.com/wordpress/wp-content/uploads/2008/03/loudspeaker-manifolds-for-high-level-concert-sound-reinforcement-1986.pdf |
Use in article (WP:NFCC#7) | David Gunness |
Purpose of use in article (WP:NFCC#8) | The image will show the reader the complex arrangement of vertices, faces and angles that are integral to the understanding of the manifold invention patent. |
Not replaceable with free media because (WP:NFCC#1) |
The inventor of the device has moved on from his association with Electro-Voice, the assignee of the patent. The patent itself has expired; it is no longer supported by any entity who would care to redraw or photograph the device. |
Minimal use (WP:NFCC#3) | The image is used in only one article. The article has only one non-free image. The image is small, being reduced in size from the original. |
Respect for commercial opportunities (WP:NFCC#2) |
The loudspeaker in question, the MT-4 concert system, was prominent in the late 1980s and throughout the 1990s, but it is no longer being made, sold or supported. |
Fair useFair use of copyrighted material in the context of David Gunness//en.wikipedia.org/wiki/File:Gunness_4-way_compression_driver_manifold,_1984.jpgtrue |
Licensing
[edit]![]() | This image represents a two-dimensional work of art, such as a drawing, painting, print, or similar creation. The copyright for this image is likely owned by either the artist who created it, the individual who commissioned the work, or their legal heirs. It is believed that the use of low-resolution images of artworks:
qualifies as fair use under United States copyright law. Any other use of this image, whether on Wikipedia or elsewhere, could potentially constitute a copyright infringement. For further information, please refer to Wikipedia's guidelines on non-free content. |
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current | 02:14, 19 January 2013 | ![]() | 248 × 245 (15 KB) | Binksternet (talk | contribs) | Uploading a non-free file using File Upload Wizard |
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