Acoustics – Diaphragm – Sectional diaphragm
Patent
1997-11-10
1998-12-08
Dang, Khanh
Acoustics
Diaphragm
Sectional diaphragm
181163, 181167, 181173, G10K 1300
Patent
active
058473327
ABSTRACT:
Acoustic speaker cones have a plurality of thin, pie-shaped segments radiating outwardly from their center with each of the segments having an arcuated cross-section. The cones are made of polycarbonate plastic and take the form of being convex towards the center for high frequency cones or of being concave towards its center for larger broad range cones. The present invention is also directed to a system containing both the aforesaid high frequency cone, and an outer broad range cone with similar radial characteristics The segments of the outer cone preferably terminate at a flexible, high sound absorption ring. The center cone fits within a central orifice at the center of the outer cone. The polycarbonate cones have a specific gravity of about 1.10 and about 1.40, having an electrical dissipation factor of about 0.05 to about 0.30 at 60 Hertz, having an electrical dissipation factor of about 1.00 to about 1.25 at 10.sup.6 Hertz, and having a thermal condutivity of at least 1.2 BTU/hr/ft.sup.2 /.degree.F./in.
REFERENCES:
patent: 1757107 (1930-05-01), Baltzley
patent: 1787946 (1931-01-01), LaRue
patent: 4013846 (1977-03-01), Krawczak et al.
patent: 4300655 (1981-11-01), Sakamoto et al.
patent: 4655316 (1987-04-01), Murray
patent: 4881617 (1989-11-01), Faraone
Dang Khanh
Glynn, Esq. Kenneth P.
LandOfFree
Polycarbonate-based radially arcuated speaker cone does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Polycarbonate-based radially arcuated speaker cone, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Polycarbonate-based radially arcuated speaker cone will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-180122