CA992875A - Speaker grills - Google Patents

Speaker grills

Info

Publication number
CA992875A
CA992875A CA203,106A CA203106A CA992875A CA 992875 A CA992875 A CA 992875A CA 203106 A CA203106 A CA 203106A CA 992875 A CA992875 A CA 992875A
Authority
CA
Canada
Prior art keywords
speaker grills
grills
speaker
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
CA203,106A
Other versions
CA203106S (en
Inventor
Gerd Kuhfus
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nortel Networks Ltd
Original Assignee
Northern Electric Co 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 Electric Co Ltd filed Critical Northern Electric Co Ltd
Priority to CA203,106A priority Critical patent/CA992875A/en
Priority to GB2505975A priority patent/GB1473047A/en
Priority to NO752097A priority patent/NO752097L/no
Priority to SE7507132A priority patent/SE7507132L/en
Priority to DK277775A priority patent/DK277775A/en
Priority to IT24629/75A priority patent/IT1039191B/en
Priority to IE1384/75A priority patent/IE41565B1/en
Priority to BE157553A priority patent/BE830491A/en
Priority to FR7519442A priority patent/FR2275955A1/en
Priority to DE19752527542 priority patent/DE2527542A1/en
Priority to NL7507377.A priority patent/NL165023B/en
Priority to JP50074595A priority patent/JPS5113508A/ja
Priority to ES1975213321U priority patent/ES213321Y/en
Application granted granted Critical
Publication of CA992875A publication Critical patent/CA992875A/en
Expired legal-status Critical Current

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)
CA203,106A 1974-06-21 1974-06-21 Speaker grills Expired CA992875A (en)

Priority Applications (13)

Application Number Priority Date Filing Date Title
CA203,106A CA992875A (en) 1974-06-21 1974-06-21 Speaker grills
GB2505975A GB1473047A (en) 1974-06-21 1975-06-11 Speaker grilles
NO752097A NO752097L (en) 1974-06-21 1975-06-12
DK277775A DK277775A (en) 1974-06-21 1975-06-19 HOJTALERGITRE
SE7507132A SE7507132L (en) 1974-06-21 1975-06-19 HOGTALARGALLER.
IE1384/75A IE41565B1 (en) 1974-06-21 1975-06-20 Speaker grilles
IT24629/75A IT1039191B (en) 1974-06-21 1975-06-20 SPEAKER GRILL
BE157553A BE830491A (en) 1974-06-21 1975-06-20 SPEAKER GRILLS
FR7519442A FR2275955A1 (en) 1974-06-21 1975-06-20 LOUDSPEAKER GRILL
DE19752527542 DE2527542A1 (en) 1974-06-21 1975-06-20 SPEAKER GRILLE
NL7507377.A NL165023B (en) 1974-06-21 1975-06-20 GRILL FOR A SPEAKER.
JP50074595A JPS5113508A (en) 1974-06-21 1975-06-20
ES1975213321U ES213321Y (en) 1974-06-21 1975-06-20 SPEAKER GRILLE.

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
CA992875A true CA992875A (en) 1976-07-13

Family

ID=4100464

Family Applications (1)

Application Number Title Priority Date Filing Date
CA203,106A Expired CA992875A (en) 1974-06-21 1974-06-21 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 (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
CN114531635B (en) * 2022-03-02 2026-02-10 江西融贤声学科技有限公司 A loudspeaker

Also Published As

Publication number Publication date
DK277775A (en) 1975-12-22
DE2527542A1 (en) 1976-01-08
ES213321Y (en) 1976-11-01
NO752097L (en) 1975-12-23
ES213321U (en) 1976-06-16
IE41565L (en) 1975-12-21
SE7507132L (en) 1975-12-22
IT1039191B (en) 1979-12-10
JPS5113508A (en) 1976-02-03
NL165023B (en) 1980-09-15
BE830491A (en) 1975-10-16
IE41565B1 (en) 1980-01-30
GB1473047A (en) 1977-05-11
NL7507377A (en) 1975-12-23
FR2275955A1 (en) 1976-01-16

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