BE830491A - SPEAKER GRILLS - Google Patents

SPEAKER GRILLS

Info

Publication number: BE830491A
Authority: BE; Belgium
Prior art keywords: speaker grills; grills; speaker
Prior art date: 1974-06-21

Application number

BE157553A

Other languages

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.)

1974-06-21

Filing date

1975-06-20

Publication date

1975-10-16

1975-06-20 Application filed filed Critical

1975-10-16 Publication of BE830491A publication Critical patent/BE830491A/en

Classifications

- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/02—Casings; Cabinets ; Supports therefor; Mountings therein
- H04R1/023—Screens for loudspeakers
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/08—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/05—Particular design of joint configurations
- B29C66/302—Particular design of joint configurations the area to be joined comprising melt initiators
- B29C66/3022—Particular design of joint configurations the area to be joined comprising melt initiators said melt initiators being integral with at least one of the parts to be joined
- B29C66/30223—Particular design of joint configurations the area to be joined comprising melt initiators said melt initiators being integral with at least one of the parts to be joined said melt initiators being rib-like
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
- B29C66/47—Joining single elements to sheets, plates or other substantially flat surfaces

Landscapes

Physics & Mathematics (AREA)
Engineering & Computer Science (AREA)
Acoustics & Sound (AREA)
Signal Processing (AREA)
Details Of Audible-Bandwidth Transducers (AREA)
Telephone Set Structure (AREA)

BE157553A 1974-06-21 1975-06-20 SPEAKER GRILLS BE830491A (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
CA203,106A CA992875A (en)	1974-06-21	1974-06-21	Speaker grills

Publications (1)

Publication Number	Publication Date
BE830491A true BE830491A (en)	1975-10-16

Family

ID=4100464

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
BE157553A BE830491A (en)	1974-06-21	1975-06-20	SPEAKER GRILLS

Country Status (13)

Country	Link
JP (1)	JPS5113508A (en)
BE (1)	BE830491A (en)
CA (1)	CA992875A (en)
DE (1)	DE2527542A1 (en)
DK (1)	DK277775A (en)
ES (1)	ES213321Y (en)
FR (1)	FR2275955A1 (en)
GB (1)	GB1473047A (en)
IE (1)	IE41565B1 (en)
IT (1)	IT1039191B (en)
NL (1)	NL165023B (en)
NO (1)	NO752097L (en)
SE (1)	SE7507132L (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPS5699127A (en) *	1979-12-29	1981-08-10	Electroplating Eng Of Japan Co	Automatic plating device
DE9113951U1 (en) *	1991-11-09	1992-01-02	Metalpraecis Berchem + Schaberg Gesellschaft für Metallformgebung mbH, 4650 Gelsenkirchen	Shut-off device for installation in a pipeline carrying a hot flowing medium
JP2010114806A (en) *	2008-11-10	2010-05-20	Toppan Printing Co Ltd	Speaker grill and manufacturing method thereof, and speaker with which the speaker grill is additionally provided
CN111328002B (en) *	2018-12-17	2024-06-11	海湾安全技术有限公司	Alarm and sound device

1974
- 1974-06-21 CA CA203,106A patent/CA992875A/en not_active Expired
1975
- 1975-06-11 GB GB2505975A patent/GB1473047A/en not_active Expired
- 1975-06-12 NO NO752097A patent/NO752097L/no unknown
- 1975-06-19 SE SE7507132A patent/SE7507132L/en unknown
- 1975-06-19 DK DK277775A patent/DK277775A/en unknown
- 1975-06-20 IT IT24629/75A patent/IT1039191B/en active
- 1975-06-20 ES ES1975213321U patent/ES213321Y/en not_active Expired
- 1975-06-20 BE BE157553A patent/BE830491A/en unknown
- 1975-06-20 FR FR7519442A patent/FR2275955A1/en not_active Withdrawn
- 1975-06-20 IE IE1384/75A patent/IE41565B1/en unknown
- 1975-06-20 NL NL7507377.A patent/NL165023B/en not_active Application Discontinuation
- 1975-06-20 DE DE19752527542 patent/DE2527542A1/en not_active Withdrawn
- 1975-06-20 JP JP50074595A patent/JPS5113508A/ja active Pending

Also Published As

Publication number	Publication date
JPS5113508A (en)	1976-02-03
CA992875A (en)	1976-07-13
SE7507132L (en)	1975-12-22
IE41565L (en)	1975-12-21
FR2275955A1 (en)	1976-01-16
NL7507377A (en)	1975-12-23
NO752097L (en)	1975-12-23
DE2527542A1 (en)	1976-01-08
GB1473047A (en)	1977-05-11
ES213321Y (en)	1976-11-01
ES213321U (en)	1976-06-16
IT1039191B (en)	1979-12-10
DK277775A (en)	1975-12-22
NL165023B (en)	1980-09-15
IE41565B1 (en)	1980-01-30

Publication	Publication Date	Title
SE404645B (en)	1978-10-16	SPEAKER DEVICE
SE7413047L (en)	1976-04-20	MICROPHONE
DK409175A (en)	1976-03-17	HEADPHONE
NL186058C (en)	1990-09-03	MICROPHONE DEVICE.
IT1053151B (en)	1981-08-31	VISUAL AUDIO TEACHING UNIT
IT1005687B (en)	1976-09-30	PREFORMABLE SOUND ABSORBING PRODUCT
NL7500942A (en)	1975-08-04	ELECTRODYNAMIC SPEAKER.
DK691474A (en)	1975-12-08	SPEAKER
SE384959B (en)	1976-05-24	PHONE ADDITION
FR2290117A1 (en)	1976-05-28	SPEAKER PEDESTALS
IT1041872B (en)	1980-01-10	TELEPHONE
SE404122B (en)	1978-09-18	BAND SPEAKER
BE830491A (en)	1975-10-16	SPEAKER GRILLS
BE825701A (en)	1975-08-19	CAFARD BAIT
FR2282203A1 (en)	1976-03-12	LOUD SPEAKER
BE828748A (en)	1975-09-01	SLIDING GRILLE
MC1049A1 (en)	1975-10-10	Electro-dynamic speakers
NL7502223A (en)	1975-09-03	SPEAKER DEVICE.
FR2277396A1 (en)	1976-01-30	ACOUSTIC ALARM
AR200322A1 (en)	1974-10-31	ESPIEDO GRILL
ATA730774A (en)	1976-09-15	GRILL
DK547174A (en)	1976-04-19	MICROPHONE UNIT
AR205622A1 (en)	1976-05-21	AN IMPROVED SPEAKER
ATA858274A (en)	1978-04-15	MICROPHONE ARRANGEMENT
BR7408085D0 (en)	1975-01-07	SPEAKER IMPROVEMENTS