Acoustics – Diaphragm – Critically defined material or coating
Patent
1983-06-14
1986-01-07
Fuller, Benjamin R.
Acoustics
Diaphragm
Critically defined material or coating
181170, 428 58, 428 65, 428155, G10K 1300, H04R 702
Patent
active
045628998
ABSTRACT:
A diaphragm of a loudspeaker is made up of a plurality of laminated composite sheets each including a number of fibers, for example, carbon fibers having a high Young's modulus to density ratio, and a matrix bonding together the fibers. Each composite sheet is divided into a plurality of adjoining sections formed by dividing the composite sheet about the center axis of the diaphragm. The divided composite sheets are laminated such that joints between adjacent sections of one composite sheet do not overlap joints between adjacent sections of the other composite sheet. In other embodiments a similar composite sheet is spirally bonded to the outer surface of the diaphragm or rings having different diameters and made of similar composite sheet are coaxially bonded along the outer surface of the diaphragm.
REFERENCES:
patent: 1180401 (1916-04-01), Johnson
patent: 1802910 (1931-04-01), De Jongh
patent: 1807225 (1931-05-01), Pack
patent: 3350513 (1967-10-01), Roberts
patent: 4410768 (1983-10-01), Nakamura et al.
patent: 4413860 (1983-11-01), Prescott
Fuller Benjamin R.
Nippon Gakki Seizo Kabushiki Kaisha
VanOphem Remy J.
LandOfFree
Diaphragm of electroacoustic transducer and method of manufactur does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Diaphragm of electroacoustic transducer and method of manufactur, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Diaphragm of electroacoustic transducer and method of manufactur will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-107571