FR2690300A1 - Cache de protection contre les poussières et son procédé de fabrication. - Google Patents

Cache de protection contre les poussières et son procédé de fabrication. Download PDF

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Publication number
FR2690300A1
FR2690300A1 FR9204850A FR9204850A FR2690300A1 FR 2690300 A1 FR2690300 A1 FR 2690300A1 FR 9204850 A FR9204850 A FR 9204850A FR 9204850 A FR9204850 A FR 9204850A FR 2690300 A1 FR2690300 A1 FR 2690300A1
Authority
FR
France
Prior art keywords
cheesecloth
gauze
cover
grid
mesh
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.)
Granted
Application number
FR9204850A
Other languages
English (en)
French (fr)
Other versions
FR2690300B1 (xx
Inventor
Coelho Gilles
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.)
CMA
Original Assignee
CMA
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 CMA filed Critical CMA
Priority to FR9204850A priority Critical patent/FR2690300A1/fr
Publication of FR2690300A1 publication Critical patent/FR2690300A1/fr
Application granted granted Critical
Publication of FR2690300B1 publication Critical patent/FR2690300B1/fr
Granted legal-status Critical Current

Links

Classifications

    • 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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B29C45/14336—Coating a portion of the article, e.g. the edge of the article
    • 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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B29C45/14778—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles the article consisting of a material with particular properties, e.g. porous, brittle
    • B29C45/14795—Porous or permeable material, e.g. foam
    • 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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B29C45/14336—Coating a portion of the article, e.g. the edge of the article
    • B29C2045/14442—Coating a portion of the article, e.g. the edge of the article injecting a grill or grid on the insert

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Details Of Audible-Bandwidth Transducers (AREA)
FR9204850A 1992-04-21 1992-04-21 Cache de protection contre les poussières et son procédé de fabrication. Granted FR2690300A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR9204850A FR2690300A1 (fr) 1992-04-21 1992-04-21 Cache de protection contre les poussières et son procédé de fabrication.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9204850A FR2690300A1 (fr) 1992-04-21 1992-04-21 Cache de protection contre les poussières et son procédé de fabrication.

Publications (2)

Publication Number Publication Date
FR2690300A1 true FR2690300A1 (fr) 1993-10-22
FR2690300B1 FR2690300B1 (xx) 1997-02-14

Family

ID=9429059

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9204850A Granted FR2690300A1 (fr) 1992-04-21 1992-04-21 Cache de protection contre les poussières et son procédé de fabrication.

Country Status (1)

Country Link
FR (1) FR2690300A1 (xx)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2115524A1 (es) * 1996-03-12 1998-06-16 Lab Radio S A Mejoras introducidas en la fabricacion de rejillas plasticas para altavoces.
FR2787055A3 (fr) * 1998-12-14 2000-06-16 Vivelec Procede de moulage par injection, utilisation de ce procede pour la fabrication de grilles de haut-parleurs et grille en matiere plastique moulee
WO2005053353A3 (en) * 2003-11-25 2006-10-12 Koninkl Philips Electronics Nv Electro-acoustic apparatus with a channel means to change the acoustic output
US9848255B1 (en) 2013-10-22 2017-12-19 Christopher Jack Brown Method for manufacturing a plastic speaker grill for wireless speaker assembly
WO2023198414A1 (de) * 2022-04-12 2023-10-19 Lisa Dräxlmaier GmbH Interieurdekorbauteil zum verkleiden einer kraftfahrzeuglautsprecheranordnung sowie verfahren zum herstellen eines interieurdekorbauteils

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2404943A1 (de) * 1974-02-01 1975-08-07 Siemens Ag Elektroakustischer wandler
GB1431181A (xx) * 1972-08-22 1976-04-07 Kawahara
DE2612941A1 (de) * 1976-03-26 1977-09-29 Hans G Hennel Gmbh & Co Kg Schutzabdeckung
EP0255509A2 (de) * 1986-07-28 1988-02-03 ETI Beteiligungsgesellschaft m.b.H. Lautsprecherabdeckung und Verfahren zur Herstellung derselben

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1431181A (xx) * 1972-08-22 1976-04-07 Kawahara
DE2404943A1 (de) * 1974-02-01 1975-08-07 Siemens Ag Elektroakustischer wandler
DE2612941A1 (de) * 1976-03-26 1977-09-29 Hans G Hennel Gmbh & Co Kg Schutzabdeckung
EP0255509A2 (de) * 1986-07-28 1988-02-03 ETI Beteiligungsgesellschaft m.b.H. Lautsprecherabdeckung und Verfahren zur Herstellung derselben

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2115524A1 (es) * 1996-03-12 1998-06-16 Lab Radio S A Mejoras introducidas en la fabricacion de rejillas plasticas para altavoces.
FR2787055A3 (fr) * 1998-12-14 2000-06-16 Vivelec Procede de moulage par injection, utilisation de ce procede pour la fabrication de grilles de haut-parleurs et grille en matiere plastique moulee
WO2005053353A3 (en) * 2003-11-25 2006-10-12 Koninkl Philips Electronics Nv Electro-acoustic apparatus with a channel means to change the acoustic output
US9848255B1 (en) 2013-10-22 2017-12-19 Christopher Jack Brown Method for manufacturing a plastic speaker grill for wireless speaker assembly
WO2023198414A1 (de) * 2022-04-12 2023-10-19 Lisa Dräxlmaier GmbH Interieurdekorbauteil zum verkleiden einer kraftfahrzeuglautsprecheranordnung sowie verfahren zum herstellen eines interieurdekorbauteils

Also Published As

Publication number Publication date
FR2690300B1 (xx) 1997-02-14

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Date Code Title Description
ST Notification of lapse