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1. (WO1991007859) VOICE TRANSMISSION SYSTEM
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1991/007859 International Application No.: PCT/US1990/006521
Publication Date: 30.05.1991 International Filing Date: 08.11.1990
IPC:
A62B 18/08 (2006.01) ,H04R 1/08 (2006.01)
A HUMAN NECESSITIES
62
LIFE-SAVING; FIRE-FIGHTING
B
DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
18
Breathing masks or helmets, e.g. affording protection against chemical agents or for use at high altitudes
08
Component parts for gas-masks or gas-helmets, e.g. windows, straps, speech transmitters, signal-devices
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
R
LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
1
Details of transducers
08
Mouthpieces; Attachments therefor
Applicants:
ACTRON MANUFACTURING COMPANY [US/US]; 9999 Walford Avenue Cleveland, OH 44102, US
Inventors:
BAUER, Alfred; US
DOBBINS, Thomas, A.; US
Agent:
HUNTER, Christopher, H.; Calfee, Halter & Griswold 1800 Society Bldg. Cleveland, OH 44114, US
Priority Data:
433,60108.11.1989US
Title (EN) VOICE TRANSMISSION SYSTEM
(FR) SYSTEME DE TRANSMISSION VOCALE
Abstract:
(EN) A combined microphone and amplifier assembly (85) that is releasably connected to the voice emitter passage (66) of a conventional face mask (1) without requiring any penetration or structural modification of the face mask (1) including the voice emitter passage (66) of the mask (1). The combined microphone and amplifier assembly (85) includes a body mounting (86) and enclosing within a main compartment (87) an amplifier circuit board (92) and a speaker (93). The body (86) further includes one or more battery compartments (88) having selectively removable covers (96) which afford ready access to the batteries (95) contained within the compartments (88). Connected to the body is a mounting bracket (109) that facilitates the quick and easy releasable connection of the combined microphone and amplifier assembly (85) to the mask (1) without any penetration or structural modification of the mask (1) being required.
(FR) Ensemble combiné de microphone et d'amplificateur (85) connectés de manière déconnectable au passage de l'émetteur vocal (66) d'un masque facial classique (1), ne nécessitant aucune pénétration ou modification structurelle du masque facial (1), comprenant le passage d'émetteur vocal (66) du masque (1). L'ensemble combiné de microphone et d'amplificateur (85) comprend un boîtier de corps (86) renfermant à l'intérieur d'un compartiment principal (87) une carte de circuit (92) d'amplificateur ainsi qu'un haut-parleur (93). Le corps (86) comprend également un ou plusieurs compartiments de piles (88) dotés de couvercles amovibles sélectivement (96), lesquels permettent un accès facile aux piles (95) contenues à l'intérieur des compartiments (88). Un support de boîtier (109) connecté au corps, facilite la connexion déconnectable rapide et facile de l'ensemble combiné de microphone et d'amplificateur (85) au masque (1) sans aucune pénétration ou modification structurelle dudit masque (1).
Designated States: JP
European Patent Office (AT, BE, CH, DE, DK, ES, FR, GB, GR, IT, LU, NL, SE)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
EP0452486