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1. DE000003013788 - Piezokeramikscheibe für einen Signalgeber zur Erzeugung eines akustischen Signals

Office
Germany
Application Number 3013788
Application Date 10.04.1980
Publication Number 000003013788
Publication Date 15.10.1981
Publication Kind C2
IPC
G10K 9/12
GPHYSICS
10MUSICAL INSTRUMENTS; ACOUSTICS
KSOUND-PRODUCING DEVICES;  METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
9Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers
12electrically operated
H04R 17/1
CPC
H04R 17/10
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
17Piezo-electric transducers; Electrostrictive transducers
10Resonant transducers, i.e. adapted to produce maximum output at a predetermined frequency
Applicants Siemens AG
Inventors Koslar, Manfred, Dipl.-Ing., 4840 Rheda-Wiedenbrück, DE
Title
(DE) Piezokeramikscheibe für einen Signalgeber zur Erzeugung eines akustischen Signals
Abstract