Patent
   D339138
Priority
Nov 13 1990
Filed
May 08 1991
Issued
Sep 07 1993
Expiry
Sep 07 2007
Assg.orig
Entity
unknown
6
6
n/a
The ornamental design of a sound modifying attachment disk for loudspeakers, as shown and described.

FIG. 1 is a perspective view of the sound modifying attachment disk for loudspeakers of my design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof; and,

FIG. 4 is a side elevational view thereof, the broken line showing of the speaker is for illustrative purposes only, and forms no part of the claimed design.

Jung, Gin Kon

Patent Priority Assignee Title
8181736, Aug 14 2008 Harman International Industries, Incorporated Phase plug and acoustic lens for direct radiating loudspeaker
8418802, Aug 14 2008 Harman International Industries, Incorporated Phase plug and acoustic lens for direct radiating loudspeaker
8672088, Aug 14 2008 Harman International Industries, Inc. Phase plug and acoustic lens for direct radiating loudspeaker
D364168, Apr 21 1993 TAN, YU WAH Acoustic control unit for a stereophonic equipment
D615532, Jan 29 2009 GP ACOUSTICS UK LIMITED Tangerine wave guide
D877125, Jan 26 2018 SYSTEMATIC AUDIO, LLC Audio speaker frame
Patent Priority Assignee Title
2077170,
4135601, Jun 24 1975 Pioneer Electronic Corporation Boron coated diaphragm for use in a loud speaker
4898260, Feb 11 1988 Peter Tsung Hoes, Fei Loudspeaker mounting with integral back wave filter and wave modulating plate of same design
4939703, Jun 03 1988 E T M REALTY TRUST Transducer baffle and sensor using same
215853,
D291601, Sep 11 1985 RPG Diffusor Systems, Inc. Acoustical baffle
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