Patent ID: 8180088
Filing Date: 2012-05-15
Classification: F16M

Abstract:
1. An elevatable microphone support for an audio or videoconferencing system, comprising: a hoisting mechanism, which includes a base section and a top/crown section, wherein the base section includes a first circular member and a second circular member, the first circular member and the second circular member are concentric with each other, and the first circular member is freely rotatable with respect to the second circular member or the second circular member is freely rotatable with respect to the first circular member, the top/crown section includes a third circular member, and the base section and the top/crown section are joined by two or more pairs of links, a first half of said two or more pairs of links are connected to said first circular member, and a second half of said two or more pairs of said links are connected to said second circular member, and all said two or more pairs of links are connected to said third circular member, by revolving joints.