Intercom with transducer enclosure to attenuate resonant frequen

Details Intercom with transducer enclosure to attenuate resonant frequen Intercom with transducer enclosure to attenuate resonant frequen

1991-05-31

1992-08-11

Schreyer, Stafford D.

Telephonic communications

Private or single line system

Doorbell system

H04M 908, H04M 910

Patent

active

051386569

ABSTRACT:
An intercom system has a speaker or two-way transducer with a sound attenuation enclosure to minimize oscillation.

REFERENCES:
patent: 2177769 (1939-10-01), Erickson
patent: 3030446 (1962-04-01), Briggs
patent: 3135349 (1964-06-01), Lahti
patent: 3430728 (1969-03-01), Dunning
patent: 3867996 (1975-02-01), Lou
patent: 4008374 (1977-02-01), Tiefenbrun
patent: 4127751 (1978-11-01), Kinoshita
patent: 4161995 (1979-07-01), Pohlmann et al.
patent: 4167985 (1979-09-01), Dunlavy
patent: 4213515 (1980-07-01), Laupman
patent: 4281738 (1981-08-01), Jackson
patent: 4439644 (1984-03-01), Bruney, III
patent: 4805728 (1989-02-01), Carter et al.
patent: 4923032 (1990-05-01), Nuernberger

Affiliated with

Also associated with

Rating

Intercom with transducer enclosure to attenuate resonant frequen does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Intercom with transducer enclosure to attenuate resonant frequen, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Intercom with transducer enclosure to attenuate resonant frequen will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-352932