Diaphragm, spherical-shell diaphragm and electroacoustic...

Acoustics – Diaphragm – Particular shape

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C181S164000, C381S423000

Reexamination Certificate

active

07743879

ABSTRACT:
A diaphragm in one mode of the present invention comprises an outer shape section having a circle with one diameter, or a shape of a polygon to be inscribed in a circle with the one diameter; an inner shape section protruding in one direction with regard to a plane including the outer shape section, wherein a shape formed by projecting the inner shape section on the plane is rotationally symmetric about the central axis of the circle; and a vibrating face section linking the outer shape section and the inner shape section and having an inclined face inclined to the central axis, wherein any one of cross-sectional shapes of the vibrating face section is rotationally symmetric about an eccentric axis which is eccentric with regard to the central axis, the cross-sectional shapes being defined by a plane intersecting perpendicularly to the central axis. An electroacoustic transducer uses the above diaphragm.

REFERENCES:
patent: 1748990 (1930-03-01), Nilson
patent: 1859629 (1932-05-01), Nilson
patent: 3940576 (1976-02-01), Schultz
patent: 4673057 (1987-06-01), Glassco
patent: 5025473 (1991-06-01), Carlsen et al.
patent: 5812685 (1998-09-01), Fujita et al.
patent: 6009972 (2000-01-01), Choi et al.
patent: 6961438 (2005-11-01), Fujita
patent: 2004/0170282 (2004-09-01), Tahara et al.
patent: 182386 (1949-11-01), None
patent: 54-079621 (1979-06-01), None
patent: 59-31105 (1984-09-01), None
patent: 09-284886 (1997-10-01), None
patent: 10-341493 (1998-12-01), None
patent: 2000-078686 (2000-03-01), None
patent: 2001-095088 (2001-04-01), None
patent: 2004297148 (2004-10-01), None

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Diaphragm, spherical-shell diaphragm and electroacoustic... 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, spherical-shell diaphragm and electroacoustic..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Diaphragm, spherical-shell diaphragm and electroacoustic... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-4215258

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.