Patent ID: 8397861

Claim:
A surround for supporting a diaphragm used to create acoustic waves, comprising: a first rib section extending away from the diaphragm; a second rib section having two end portions and a middle portion, an end of the first rib section being secured to the middle portion of the second rib section, the first rib section being closer to the diaphragm than the second rib section; and a first membrane section that is supported by the first rib section, the membrane section having a thickness in a direction substantially normal to opposing top and bottom surfaces of the membrane section which is substantially thinner than a thickness of the first rib section in a direction substantially normal to opposing top and bottom surfaces of the first rib section, a point on the middle portion of the second rib section that is closest to the diaphragm being located farther from the diaphragm than a point on at least one of the end portions of the second rib section that is closest to the diaphragm.