NL165023B - GRILL FOR A SPEAKER. - Google Patents

GRILL FOR A SPEAKER.

Info

Publication number
NL165023B
NL165023B NL7507377.A NL7507377A NL165023B NL 165023 B NL165023 B NL 165023B NL 7507377 A NL7507377 A NL 7507377A NL 165023 B NL165023 B NL 165023B
Authority
NL
Netherlands
Prior art keywords
grill
speaker
Prior art date
Application number
NL7507377.A
Other languages
Dutch (nl)
Other versions
NL7507377A (en
Original Assignee
Northern Telecom Ltd
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 Telecom Ltd filed Critical Northern Telecom Ltd
Publication of NL7507377A publication Critical patent/NL7507377A/en
Publication of NL165023B publication Critical patent/NL165023B/en

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)
NL7507377.A 1974-06-21 1975-06-20 GRILL FOR A SPEAKER. NL165023B (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 (2)

Publication Number Publication Date
NL7507377A NL7507377A (en) 1975-12-23
NL165023B true NL165023B (en) 1980-09-15

Family

ID=4100464

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7507377.A NL165023B (en) 1974-06-21 1975-06-20 GRILL FOR A SPEAKER.

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

Also Published As

Publication number Publication date
DK277775A (en) 1975-12-22
NO752097L (en) 1975-12-23
ES213321U (en) 1976-06-16
JPS5113508A (en) 1976-02-03
NL7507377A (en) 1975-12-23
IE41565L (en) 1975-12-21
GB1473047A (en) 1977-05-11
BE830491A (en) 1975-10-16
ES213321Y (en) 1976-11-01
SE7507132L (en) 1975-12-22
IT1039191B (en) 1979-12-10
DE2527542A1 (en) 1976-01-08
CA992875A (en) 1976-07-13
IE41565B1 (en) 1980-01-30
FR2275955A1 (en) 1976-01-16

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Legal Events

Date Code Title Description
P1 Automatically granted patents, except
RI Patent application has been withdrawn after publication (e.g. due to an opposition)
BI The patent application has been withdrawn