NO752097L - - Google Patents

Info

Publication number
NO752097L
NO752097L NO752097A NO752097A NO752097L NO 752097 L NO752097 L NO 752097L NO 752097 A NO752097 A NO 752097A NO 752097 A NO752097 A NO 752097A NO 752097 L NO752097 L NO 752097L
Authority
NO
Norway
Prior art keywords
strips
grid
loudspeaker
sound screen
speaker
Prior art date
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.)
Filing date
Publication date
Application filed by Northern Electric Co filed Critical Northern Electric Co
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; 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)
NO752097A 1974-06-21 1975-06-12 NO752097L (nl)

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 (nl) 1975-12-23

Family

ID=4100464

Family Applications (1)

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

Country Status (13)

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

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 (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

Also Published As

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

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