PT84392B - Transductor electroacustico para alarmes - Google Patents

Transductor electroacustico para alarmes

Info

Publication number
PT84392B
PT84392B PT84392A PT8439287A PT84392B PT 84392 B PT84392 B PT 84392B PT 84392 A PT84392 A PT 84392A PT 8439287 A PT8439287 A PT 8439287A PT 84392 B PT84392 B PT 84392B
Authority
PT
Portugal
Prior art keywords
alarms
electroacustic
transducer
electroacustic transducer
Prior art date
Application number
PT84392A
Other languages
English (en)
Portuguese (pt)
Other versions
PT84392A (fr
Inventor
Pedro Altimira Vinallonga
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.)
Filing date
Publication date
Application filed by Plastmetal Sa filed Critical Plastmetal Sa
Publication of PT84392A publication Critical patent/PT84392A/fr
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 PT84392A (fr) 1987-03-01
PT84392B true 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

Also Published As

Publication number Publication date
ES292737Y (es) 1987-03-01
ES292737U (es) 1986-06-16
PT84392A (fr) 1987-03-01
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
MM3A Annulment or lapse

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

Effective date: 19960930