BE521691A - - Google Patents
Info
- Publication number
- BE521691A BE521691A BE521691DA BE521691A BE 521691 A BE521691 A BE 521691A BE 521691D A BE521691D A BE 521691DA BE 521691 A BE521691 A BE 521691A
- Authority
- BE
- Belgium
- Prior art keywords
- emi
- plate
- comb
- carrier body
- fixing
- Prior art date
Links
- 229910052751 metal Inorganic materials 0.000 claims description 8
- 239000002184 metal Substances 0.000 claims description 8
- 239000000126 substance Substances 0.000 claims description 6
- 229920002994 synthetic fiber Polymers 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 229920001169 thermoplastic Polymers 0.000 claims description 3
- 239000004416 thermosoftening plastic Substances 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 229920001187 thermosetting polymer Polymers 0.000 claims description 2
- 238000000034 method Methods 0.000 claims 1
- 210000004209 hair Anatomy 0.000 description 6
- 229920003319 Araldite® Polymers 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 229910001374 Invar Inorganic materials 0.000 description 1
- 229910000617 Mangalloy Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P11/00—Connecting or disconnecting metal parts or objects by metal-working techniques not otherwise provided for
- B23P11/02—Connecting or disconnecting metal parts or objects by metal-working techniques not otherwise provided for by first expanding and then shrinking or vice versa, e.g. by using pressure fluids; by making force fits
- B23P11/025—Connecting or disconnecting metal parts or objects by metal-working techniques not otherwise provided for by first expanding and then shrinking or vice versa, e.g. by using pressure fluids; by making force fits by using heat or cold
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B11/00—Connecting constructional elements or machine parts by sticking or pressing them together, e.g. cold pressure welding
- F16B11/006—Connecting constructional elements or machine parts by sticking or pressing them together, e.g. cold pressure welding by gluing
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R19/00—Electrostatic transducers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R31/00—Apparatus or processes specially adapted for the manufacture of transducers or diaphragms therefor
- H04R31/003—Apparatus or processes specially adapted for the manufacture of transducers or diaphragms therefor for diaphragms or their outer suspension
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R7/00—Diaphragms for electromechanical transducers; Cones
- H04R7/16—Mounting or tensioning of diaphragms or cones
- H04R7/18—Mounting or tensioning of diaphragms or cones at the periphery
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Multimedia (AREA)
- Manufacturing & Machinery (AREA)
- Laminated Bodies (AREA)
- Treatment Of Fiber Materials (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL320465X | 1952-07-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE521691A true BE521691A (fi) |
Family
ID=19783972
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE521691D BE521691A (fi) | 1952-07-26 |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE521691A (fi) |
| CH (1) | CH320465A (fi) |
| DE (1) | DE965463C (fi) |
| FR (1) | FR1081600A (fi) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1289117B (de) * | 1957-12-24 | 1969-02-13 | Siemens Ag Albis | Verfahren zum Verkleben einer umfangszentrierten Membran aus loesbarem Kunststoff im Gehaeuse eines elektroakustischen Wandlers |
| DE1107712B (de) * | 1958-12-31 | 1961-05-31 | Sennheiser Electronic | Verfahren zur Herstellung einer Membran |
| BE653385A (fi) * | 1963-09-27 | |||
| US4249043A (en) * | 1977-12-02 | 1981-02-03 | The Post Office | Electret transducer backplate, electret transducer and method of making an electret transducer |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE534412C (de) * | 1926-11-25 | 1931-09-26 | Siemens & Halske Akt Ges | Vorrichtung zur Erzeugung oder Aufnahme mechanischer, insbesondere akustischer Schwingungen, deren schwingende Teile (z. B. Membranen) unter Verwendung pulverfoermiger Mineralien hergestellt sind |
| DE587370C (de) * | 1928-04-01 | 1933-11-02 | Telefunken Gmbh | Verfahren zur Herstellung von Membranen, insbesondere fuer akustische Geraete |
| DE611612C (de) * | 1931-11-14 | 1935-04-03 | Steatit Magnesia Akt Ges | Aus mehreren Schichten verschiedener Leitfaehigkeit bestehende Membran fuer Apparate akustisch-mechanisch-elektrischer Umformung, wie Mikrophone |
| DE628700C (de) * | 1933-12-08 | 1936-04-08 | Maschf Augsburg Nuernberg Ag | Verfahren zum Glattspannen von Verkleidungsblechen von Eisenbahnwagen u. dgl. |
| US2197150A (en) * | 1938-04-21 | 1940-04-16 | Heintz Mfg Co | Corrosion resisting built-up closure and method of making same |
| US2304976A (en) * | 1939-09-07 | 1942-12-15 | Budd Edward G Mfg Co | Spot welded sheet material |
| US2688796A (en) * | 1950-10-05 | 1954-09-14 | American Car & Foundry Co | Method of treating sheet metal to remove buckles |
-
0
- BE BE521691D patent/BE521691A/fr unknown
-
1953
- 1953-07-23 DE DEN7504A patent/DE965463C/de not_active Expired
- 1953-07-24 FR FR1081600D patent/FR1081600A/fr not_active Expired
- 1953-07-24 CH CH320465D patent/CH320465A/de unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CH320465A (de) | 1957-03-31 |
| DE965463C (de) | 1957-06-06 |
| FR1081600A (fr) | 1954-12-21 |
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