Electroacoustic public address unit with acoustic horn or...

Details Electroacoustic public address unit with acoustic horn or... Electroacoustic public address unit with acoustic horn or...

2007-02-20

2007-02-20

San Martin, Edgardo (Department: 2837)

Acoustics

Sound-modifying means

Intensifying horn

C181S185000, C181S186000, C381S337000, C381S339000, C381S340000, C381S387000

Reexamination Certificate

active

10484465

ABSTRACT:
A horn or waveguide public address unit, enabling to adapt the dispersion characteristics of the horn or waveguide. The unit is provided with at least one profiling component (21a, 21b) constituting a removable dispersion shaper, capable of being mounted on the inner wall of the horn (13) or waveguide between the throat (17) and the mouth (19) thereof.

REFERENCES:
patent: 272866 (1883-02-01), Drawbaugh
patent: 982732 (1911-01-01), Lehnert
patent: 1352291 (1920-09-01), Long
patent: 1438712 (1922-12-01), Mosmann
patent: 1661525 (1928-03-01), Deerfoot
patent: 1729336 (1929-09-01), France
patent: 2621553 (1952-12-01), Daoust
patent: 4178829 (1979-12-01), Wolford
patent: 4628155 (1986-12-01), Robineau et al.
patent: 4685532 (1987-08-01), Gunness
patent: 5020630 (1991-06-01), Gunness
patent: 5398992 (1995-03-01), Daniels
patent: 6112847 (2000-09-01), Lehman
patent: 6394223 (2002-05-01), Lehman
patent: 1 079 073 (1954-11-01), None
patent: 55165097 (1980-12-01), None
patent: 60052196 (1985-03-01), None

Affiliated with

Also associated with

Rating

Electroacoustic public address unit with acoustic horn or... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Electroacoustic public address unit with acoustic horn or..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electroacoustic public address unit with acoustic horn or... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3826215