IT1039191B - SPEAKER GRILL - Google Patents

SPEAKER GRILL

Info

Publication number: IT1039191B
Authority: IT; Italy
Prior art keywords: speaker grill; grill; speaker
Prior art date: 1974-06-21

Application number

IT24629/75A

Other languages

Italian (it)

Original Assignee

Northern Electric Co

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

1979-12-10

1975-06-20 Application filed by Northern Electric Co filed Critical Northern Electric Co

1979-12-10 Application granted granted Critical

1979-12-10 Publication of IT1039191B publication Critical patent/IT1039191B/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)

IT24629/75A 1974-06-21 1975-06-20 SPEAKER GRILL IT1039191B (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
IT1039191B true IT1039191B (en)	1979-12-10

Family

ID=4100464

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
IT24629/75A IT1039191B (en)	1974-06-21	1975-06-20	SPEAKER GRILL

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 (5)

* 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
CN114531635A (en) *	2022-03-02	2022-05-24	江西融贤声学科技有限公司	a loudspeaker

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 DK DK277775A patent/DK277775A/en unknown
- 1975-06-19 SE SE7507132A patent/SE7507132L/en unknown
- 1975-06-20 ES ES1975213321U patent/ES213321Y/en not_active Expired
- 1975-06-20 IE IE1384/75A patent/IE41565B1/en unknown
- 1975-06-20 DE DE19752527542 patent/DE2527542A1/en not_active Withdrawn
- 1975-06-20 FR FR7519442A patent/FR2275955A1/en not_active Withdrawn
- 1975-06-20 JP JP50074595A patent/JPS5113508A/ja active Pending
- 1975-06-20 IT IT24629/75A patent/IT1039191B/en active
- 1975-06-20 NL NL7507377.A patent/NL165023B/en not_active Application Discontinuation
- 1975-06-20 BE BE157553A patent/BE830491A/en unknown

Also Published As

Publication number	Publication date
ES213321Y (en)	1976-11-01
SE7507132L (en)	1975-12-22
DE2527542A1 (en)	1976-01-08
FR2275955A1 (en)	1976-01-16
DK277775A (en)	1975-12-22
CA992875A (en)	1976-07-13
JPS5113508A (en)	1976-02-03
GB1473047A (en)	1977-05-11
NO752097L (en)	1975-12-23
NL7507377A (en)	1975-12-23
BE830491A (en)	1975-10-16
IE41565B1 (en)	1980-01-30
ES213321U (en)	1976-06-16
IE41565L (en)	1975-12-21
NL165023B (en)	1980-09-15

Publication	Publication Date	Title
SE7413047L (en)	1976-04-20	MICROPHONE
DK336175A (en)	1976-01-26	HI FI SPEAKER CABINET
DK409175A (en)	1976-03-17	HEADPHONE
SE430067B (en)	1983-10-17	FLUORACETYLATED ETHYL CELLULOSADERIVE
DK691474A (en)	1975-12-08	SPEAKER
FR2291727A1 (en)	1976-06-18	PERFECTED GRILL
JPS5117167A (en)	1976-02-10	PURAZUMAJETSUTONYORU KINZOKU FUNTAINO SEIZOHOHO
SE7514211L (en)	1976-06-18	BAND SPEAKER
IT1039191B (en)	1979-12-10	SPEAKER GRILL
JPS5132453A (en)	1976-03-19	KINZOKU KANNOSET SUZOKUHOHO
FR2282203A1 (en)	1976-03-12	LOUD SPEAKER
BE814573A (en)	1974-11-06	SIEVE
FR2282250B1 (en)	1976-12-31	BARBECUE
FR2315264A2 (en)	1977-01-21	ACYLATED PHENOLETHANOLAMINES
JPS5159041A (en)	1976-05-22	KINZOKU BOSEIZAI
AR200322A1 (en)	1974-10-31	ESPIEDO GRILL
ATA730774A (en)	1976-09-15	GRILL
PL193637A1 (en)	1978-02-27	PESTICIAL KILLER
IT1024290B (en)	1978-06-20	SOUND TOY
ATA959374A (en)	1977-01-15	HEADPHONE
JPS5161465A (en)	1976-05-28	KINZOKU SENSEIZOHO
JPS5156766A (en)	1976-05-18	KINZOKU PAIPUSHIBORIKI
JPS5152304A (en)	1976-05-08	KINZOKU FUNMATSUATSUENTAINO KYOKAHOHO
JPS5139561A (en)	1976-04-02	KINZOKU FUNMATSUSEIZOSOCHI
AR205622A1 (en)	1976-05-21	AN IMPROVED SPEAKER