Variable volume resonators using the Belleville spring principle

Details Variable volume resonators using the Belleville spring principle Variable volume resonators using the Belleville spring principle

1979-02-12

1980-10-21

Griffin, Donald A.

Acoustics

Sound-modifying means

Sound absorbing panels

181295, E04B 182, G10K 1110

Patent

active

042288690

ABSTRACT:
The present variable volume resonators have an inner volume enclosed by wall members constructed as Belleville springs. The wall members confine in said volume a pressure which is reduced relative to atmospheric pressure, whereby the springs have a small spring constant in response to a reduced pressure load. Each resonator is so constructed that it has a relatively large resonating surface and a relatively low resonating mass. The sound damping effect of the resonator volume is enhanced by means of various types of damping devices including a high viscosity residual gas, wire mesh members, or liquid drops in the volume interior. The present resonators also comprise features for compensating air pressure and/or the resonance frequency.

REFERENCES:
patent: 2153357 (1939-04-01), Wente
patent: 2502017 (1950-03-01), Beers
patent: 2502018 (1950-03-01), Olson
patent: 2502019 (1950-03-01), Olson
patent: 2502020 (1950-03-01), Olson
patent: 2840179 (1958-06-01), Junger
patent: 3422921 (1969-01-01), Warnuka
patent: 4149612 (1979-04-01), Bschorr

Affiliated with

Also associated with

Rating

Variable volume resonators using the Belleville spring principle does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Variable volume resonators using the Belleville spring principle, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Variable volume resonators using the Belleville spring principle will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2018981