NO752097L - - Google Patents

Info

Publication number: NO752097L
Authority: NO; Norway
Prior art keywords: strips; grid; loudspeaker; sound screen; speaker
Prior art date: 1974-06-21

Application number

NO752097A

Other languages

English (en)

Norwegian (no)

Inventor

G Kuhfus

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

1975-06-12

Publication date

1975-12-23

1975-06-12 Application filed by Northern Electric Co filed Critical Northern Electric Co

1975-12-23 Publication of NO752097L publication Critical patent/NO752097L/no

Links

Classifications

- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; 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)

NO752097A 1974-06-21 1975-06-12 NO752097L (fr)

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
NO752097L true NO752097L (fr)	1975-12-23

Family

ID=4100464

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
NO752097A NO752097L (fr)	1974-06-21	1975-06-12

Country Status (13)

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

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 (de) *	1991-11-09	1992-01-02	Metalpraecis Berchem + Schaberg Gesellschaft für Metallformgebung mbH, 4650 Gelsenkirchen	Absperrvorrichtung zum Einbau in eine Rohrleitung, die ein heißes strömendes Medium führt
JP2010114806A (ja) *	2008-11-10	2010-05-20	Toppan Printing Co Ltd	スピーカーグリルとその製造方法、およびスピーカーグリルを付設したスピーカー
CN111328002B (zh) *	2018-12-17	2024-06-11	海湾安全技术有限公司	报警器和声装置
CN114531635B (zh) *	2022-03-02	2026-02-10	江西融贤声学科技有限公司	一种扬声器

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- 1975-06-20 FR FR7519442A patent/FR2275955A1/fr not_active Withdrawn
- 1975-06-20 DE DE19752527542 patent/DE2527542A1/de not_active Withdrawn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

Also Published As

Publication number	Publication date
FR2275955A1 (fr)	1976-01-16
DK277775A (da)	1975-12-22
NL7507377A (nl)	1975-12-23
GB1473047A (en)	1977-05-11
DE2527542A1 (de)	1976-01-08
JPS5113508A (fr)	1976-02-03
ES213321U (es)	1976-06-16
BE830491A (fr)	1975-10-16
IE41565B1 (en)	1980-01-30
NL165023B (nl)	1980-09-15
CA992875A (en)	1976-07-13
IE41565L (en)	1975-12-21
IT1039191B (it)	1979-12-10
SE7507132L (sv)	1975-12-22
ES213321Y (es)	1976-11-01

Publication	Publication Date	Title
US4040142A (en)	1977-08-09	Safety device more particularly for rabbet of door
NO752097L (fr)	1975-12-23
US3485002A (en)	1969-12-23	Imitation spanish tile
US4207863A (en)	1980-06-17	Door for pyrolytic range
USD882045S1 (en)	2020-04-21	Gutter downspout protector
NO136731B (fr)	1977-07-18
USD247047S (en)	1978-01-24	Storm window
US5011263A (en)	1991-04-30	Perforate projection screen
US4383519A (en)	1983-05-17	Door frame and handle combination
USD1025968S1 (en)	2024-05-07	Cover window for display device
US4372225A (en)	1983-02-08	Panel structure for public enclosures
USD1015066S1 (en)	2024-02-20	Appliance cover
US4364635A (en)	1982-12-21	Slide-screen for back projection
NL8005554A (nl)	1981-06-16	Afdekkraag voor een dakraam of soortgelijke in het dak in te bouwen constructie.
US1915980A (en)	1933-06-27	Mail box
USD253225S (en)	1979-10-23	Outdoor weatherproof plate and closure combination
CA1219495A (fr)	1987-03-24	Etancheite de pied pour fermeture roulante
IT201900004029U1 (it)	2021-05-11	Apparato di copertura
US2299393A (en)	1942-10-20	Television receiver cabinet
NL8802740A (nl)	1990-06-01	Ventilatierooster.
GB2236127A (en)	1991-03-27	Gas barriers for buildings
USD263370S (en)	1982-03-16	Hinge pin
US4040725A (en)	1977-08-09	Display illuminating structure
US3534724A (en)	1970-10-20	Housing for a forced draught space heater
USD971729S1 (en)	2022-12-06	Container lid