Sound projection device attachable to a user when not in use

Details Sound projection device attachable to a user when not in use Sound projection device attachable to a user when not in use

2009-08-25

2011-10-04

Phillips, Forrest M (Department: 2832)

Acoustics

Speaking tubes

Tubes

C181S178000, C181S180000, C181S000500, C002S209110

Reexamination Certificate

active

08028790

ABSTRACT:
A megaphone comprises a rigid but bendable material with a tapered shape. When the material is folded, the produced megaphone has a small opening at one end and a larger opening at the other end. The megaphone has edges that form an opening along the side such that when pressure is applied to the edges the opening expands allowing the megaphone to be positioned on a person's arm or leg. Once positioned on the arm of leg the rigidity of the material causes the megaphone return to its original cone shape. The megaphone can enclose around a user's arm or leg for storage purposes during an event. Information can be displayed on the surface of the megaphone. The megaphone of the present invention can be folded and unfolded.

REFERENCES:
patent: 4249267 (1981-02-01), Voss
patent: 4613012 (1986-09-01), Mueller, III
patent: 4703829 (1987-11-01), Hardt
patent: 5704067 (1998-01-01), Brady
patent: 6412116 (2002-07-01), Clark
patent: 6810529 (2004-11-01), Reilly et al.
patent: 6889797 (2005-05-01), Cowgill et al.
patent: 2003/0019008 (2003-01-01), Prather

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