PT84392A - Transducteur electroacoustique perfectionne pour des alarmes - Google Patents

Transducteur electroacoustique perfectionne pour des alarmes

Info

Publication number: PT84392A
Authority: PT; Portugal
Prior art keywords: perfected; alarms; electroacoustic transducer; electroacoustic; transducer
Prior art date: 1986-03-05

Application number

PT84392A

Other languages

English (en)

Portuguese (pt)

Other versions

PT84392B (pt

Inventor

Pedro Altimira Villalonga

Original Assignee

Plastmetal Sa

Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)

1986-03-05

Filing date

1987-02-27

Publication date

1987-03-01

1987-02-27 Application filed by Plastmetal Sa filed Critical Plastmetal Sa

1987-03-01 Publication of PT84392A publication Critical patent/PT84392A/fr

1989-10-04 Publication of PT84392B publication Critical patent/PT84392B/pt

Links

Classifications

- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K9/00—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers
- G10K9/12—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers electrically operated
- G10K9/13—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers electrically operated using electromagnetic driving means

Landscapes

Physics & Mathematics (AREA)
Electromagnetism (AREA)
Engineering & Computer Science (AREA)
Acoustics & Sound (AREA)
Multimedia (AREA)
Non-Portable Lighting Devices Or Systems Thereof (AREA)
Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)

PT84392A 1986-03-05 1987-02-27 Transductor electroacustico para alarmes PT84392B (pt)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
ES1986292737U ES292737Y (es)	1986-03-05	1986-03-05	Transductor electroacustico, perfeccionado, para alarma

Publications (2)

Publication Number	Publication Date
PT84392A true PT84392A (fr)	1987-03-01
PT84392B PT84392B (pt)	1989-10-04

Family

ID=8440110

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
PT84392A PT84392B (pt)	1986-03-05	1987-02-27	Transductor electroacustico para alarmes

Country Status (4)

Country	Link
ES (1)	ES292737Y (fr)
FR (1)	FR2598580B1 (fr)
GB (1)	GB2188185A (fr)
PT (1)	PT84392B (fr)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3938141A (en) *	1975-01-06	1976-02-10	General Signal Corporation	Snap-on housing adapted for panel mounting of transducer
FR2400744A1 (fr) *	1977-08-19	1979-03-16	Beltrame Leonardo	Avertisseur acoustique electromagnetique
US4310833A (en) *	1980-01-15	1982-01-12	Kobishi America, Inc.	Electrically-energized horn

1986
- 1986-03-05 ES ES1986292737U patent/ES292737Y/es not_active Expired
1987
- 1987-02-06 GB GB08702672A patent/GB2188185A/en not_active Withdrawn
- 1987-02-16 FR FR878701956A patent/FR2598580B1/fr not_active Expired - Fee Related
- 1987-02-27 PT PT84392A patent/PT84392B/pt not_active IP Right Cessation

Also Published As

Publication number	Publication date
ES292737Y (es)	1987-03-01
PT84392B (pt)	1989-10-04
ES292737U (es)	1986-06-16
FR2598580A1 (fr)	1987-11-13
GB8702672D0 (en)	1987-03-11
FR2598580B1 (fr)	1992-03-27
GB2188185A (en)	1987-09-23

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Legal Events

Date

Code

Title

Description

1997-01-31

MM3A

Annulment or lapse

Free format text: LAPSE DUE TO NON-PAYMENT OF FEES

Effective date: 19960930