Dust protection cap for conical loudspeaker

Details Dust protection cap for conical loudspeaker Dust protection cap for conical loudspeaker

1992-05-20

1994-03-08

Wintercorn, Richard A.

Acoustics

Diaphragm

Critically defined material or coating

181171, G10K 1300

Patent

active

052930092

ABSTRACT:
A conical loudspeaker (10) has a dust protection cap (23) of hot-pressed polymer foam. Dust protection caps (23) made from this material are largely insensitive to finger pressure and can be attached to the conical speaker membrane using simple adhesives. Preferably the outer rim of the conical speaker membrane is secured by a lock beading (14) made from the same foam as the dust protection cap (23). This has the advantage that if the pressing die is suitably configured, the dust protection cap (23) can be made from the portion of the foam mat that otherwise, if only a lock beading (14) was being produced, would be left over in the center of the foam mat.

REFERENCES:
patent: 2858680 (1975-01-01), Tsuge et al.
patent: 4190746 (1980-02-01), Harwood et al.
patent: 4478309 (1984-10-01), Kawamura et al.

Affiliated with

Also associated with

Rating

Dust protection cap for conical loudspeaker does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Dust protection cap for conical loudspeaker, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dust protection cap for conical loudspeaker will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-155613