Title:
ADVERTISING HORN
Document Type and Number:
WIPO Patent Application WO/2013/057528
Kind Code:
A3
Abstract:
The invention relates to an advertising horn provided with a pressure medium feed pipe (1), a sound pipe (2) arranged within said feed pipe, wherein there is an air gap (3) between the feed pipe and the sound pipe. The air gap is closed at one end and is covered with a membrane (4) at the other end, said membrane covering the sound pipe as well. The pressure medium feed pipe is provided with a bore (7) opening into the air gap. The membrane is fixed on the peripheral surface of the pressure medium feed pipe, wherein a fastening ring (5) holding said membrane is coupled to a distance ring (6), which is arranged on the inner surface of the pressure medium feed pipe. The membrane is preferably made of gum, and the outer surface of the pressure medium feed pipe and that of the fastening ring provide a continuous, even, uniform surface.
Inventors:
GYOERGY LASZLO (HU)
Application Number:
PCT/HU2012/000109
Publication Date:
December 19, 2013
Filing Date:
October 19, 2012
Export Citation:
Assignee:
GYOERGY LASZLO (HU)
International Classes:
G10K9/00
Foreign References:
| DE3532324A1 | 1987-03-19 | |||
| US1335921A | 1920-04-06 | |||
| US20060196405A1 | 2006-09-07 | |||
| EP0539935A2 | 1993-05-05 |
Attorney, Agent or Firm:
DANUBIA PATENT & LAW OFFICE LLC (Budapest, HU)
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