US2401472A - Structural unit - Google Patents
Structural unit Download PDFInfo
- Publication number
- US2401472A US2401472A US584523A US58452345A US2401472A US 2401472 A US2401472 A US 2401472A US 584523 A US584523 A US 584523A US 58452345 A US58452345 A US 58452345A US 2401472 A US2401472 A US 2401472A
- Authority
- US
- United States
- Prior art keywords
- sheet
- convolutions
- panel
- antenna
- metal
- 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 - Lifetime
Links
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q7/00—Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/02—Apparatus or processes for manufacturing printed circuits in which the conductive material is applied to the surface of the insulating support and is thereafter removed from such areas of the surface which are not intended for current conducting or shielding
- H05K3/04—Apparatus or processes for manufacturing printed circuits in which the conductive material is applied to the surface of the insulating support and is thereafter removed from such areas of the surface which are not intended for current conducting or shielding the conductive material being removed mechanically, e.g. by punching
- H05K3/041—Apparatus or processes for manufacturing printed circuits in which the conductive material is applied to the surface of the insulating support and is thereafter removed from such areas of the surface which are not intended for current conducting or shielding the conductive material being removed mechanically, e.g. by punching by using a die for cutting the conductive material
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
- Y10T156/10—Methods of surface bonding and/or assembly therefor
- Y10T156/1052—Methods of surface bonding and/or assembly therefor with cutting, punching, tearing or severing
- Y10T156/1054—Methods of surface bonding and/or assembly therefor with cutting, punching, tearing or severing and simultaneously bonding [e.g., cut-seaming]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49002—Electrical device making
- Y10T29/4902—Electromagnet, transformer or inductor
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49002—Electrical device making
- Y10T29/49117—Conductor or circuit manufacturing
- Y10T29/49204—Contact or terminal manufacturing
- Y10T29/49208—Contact or terminal manufacturing by assembling plural parts
- Y10T29/49218—Contact or terminal manufacturing by assembling plural parts with deforming
Definitions
- This invention relates to a novel structure unit comprising a sheet of material having superposed thereon a sheet of metal or the like which has been simultaneously formed into a predetermined conilguration and attachd to the underlying supporting sheet.
- This invention more specifically relates to antenna construction as employed in connection with radio apparatus and particularly with radio receivers.
- An object of this invention is to provide a novel form of antenna structure for this purpose.
- More specific objects of the invention are con- .cerned with antenna structure and a method of producing it whereby it may be manufactured at extremely low cost on a mass production basis by the use of simple automatic machinery.
- a still more specific object of the invention is to provide a combined antenna and back or housing closure for radio receiving sets comprising a single unit.
- This invention resides substantially in the combination, construction, arrangement and relative location of parts, as will be described in detail below.
- Figure 2 is an edge elevational view of the unit
- Figure 3 is a cross-sectional view taken on the line 3-3 of Figure 2 and including a diagrammatic illustration of a portion of the stamping die by means of which the antenna is formed.
- the electrical components are contained within a decorative housing or cabinet.
- Such cabinets are usually constructed with a removable back or closure to facilitate access to the interior for repair and replacement of parts.
- a panel I0 is of some suitable insulating material oi which there is a wide range and variety of products commercially available on the market.
- it may be made of pressed fiber board, plastic and thermosetting materials, wood and the like. specific examples of suitable commercial products so are "Bakelite,” Masonite, Vulcanite and the like.
- the panel It will, of course, be made of suitable configuration to fit on or in the back of the cabinet of the radio receiving set of which it is to become a part and, as illustrated, will usually as consist of a simple rectangular sheet of the material of the proper thickness.
- a thin sheet II of some suitable conducting material such as copper, aluminum, and the like.
- the sheet I! will serve its intended purpose if it has a thickness or the order of a few thousandths of an inch and it may be attached to the panel I in any suitable manner as, for example, by means of rivets or bolts I! or, if desired, the parts ill and I! can be attached together by means of an adhesive. In the practice of this invention, it is probable that the parts l0 and I2 permanently bonded together will be available as a commercial product.
- the sheet I! of metal is processed in one operation to form it into a continuous band in the form of convolutions of gradually decreasing diameter and of any suitable and practical configuration.
- the metal sheet 12 has been cut into concentric convolutions I! of generally rectangular form.
- the convolutions are spaced from each other by an air gap H.
- the inner terminal end is provided with any suitable form of circuit connecting means such as the integral tab ii.
- the convolutions are enclosed within a terminal portion is of the sheet I! which, as shown, is exterlorly ofrectangular 3 shape. that is, the original shape of the metal sheet it.
- the other terminal connection to the antenna can be made, for example, by means or the pigtail ll.
- the central portion of the sheet I! is cut out so that the convolutions l3 terminate at their inner end at the tab II.
- This iorms a true loop antenna in accordance with well known principles in the art of radio communications.
- the metal sheet can originally be in the form of a hollow configuration so that the central area is open eliminating the necessity of removing the central portion or the sheet not cut into convolutions.
- This modiflcation is a matter of economy in material and labor costs.
- This physical structure is capable of manufacture by means oi a simple operation which may be assigned to an automatic machine such as a punch press.
- the back panel In with the attached metal sheet I! is laid on a platen with the metal sheet lacing upwardly, for example, and positioned with respect to a vertical reciprocable die 20, a sectional view of a portion of which is shown in Figure 3.
- the die will consist of a block of suitable material such as is commonly used for such dies, such as steel, having formed on the end face thereof a continuous groove 2
- the convolutions I! will, in cross-sectional shape, be of arcuate form as is clearly illustrated in Figure 3.
- the cutting edges 22 will bite into the panel It to form the acutely angled grooves ll and by this same action separate the severed edges of the adjacent convolutions II to provide an air gap between them.
- An automatically operating punch press when fed with units comprising the panel ill and attached metal sheet l2 can cut the sheet into a loop antenna with one blow.
- the crimping, bending or deforming oi the convolutions l3 as they are formed by this cutting operation will serve to further clinch them to the panel HI and hold them in place.
- the convolutions comprising the antenna either in the form illustrated herein or equivalent iorms can be applied to the insulating sheet ll by electroplating or by application under prusure by what might be termed branding." It is also within the scope or this invention to form the convolutions from a sheet of metal by cutting methods to form the spaces il by variom well known metal cutting machines.
- An air dielectric inductance comprising a panel of insulating material and a continuous metal strip formed from a metal sheet and at tached to one face 0! said panel in the form of a spiral, the planar width of said strip being equal to the pitch of said spiral and said strip being in channel form to provide a free air space between adjacent turns of said spiral.
- An electrical device comprising a panel of insulating material and an inductance formed from a sheared sheet of metal, attached to one face of the panel, consisting of a plurality of spaced convolutions in spiral arrangement. the convolutions forming a single continuous cmductor defined by a single shear line and the planar width of the conductor being equal to the pitch of said convolutions.
- An inductance for electrical circuits comprising a panel of insulating material and a continuous ribbon conductor of non-planar crosssection secured to one race thereof in spiral convolutions, said conductor being formed from a sheared sheet of metal and the planar width of said conductor being equal to the pitch oi said spiral.
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Details Of Aerials (AREA)
Description
- June 19.45- A. w. FRANKLIN I ,40
wmmTUM-Lv UNIT Fiied March 24 1945 vENTo ALB T W. FRANKLIN ED LF W Patented June 4, 1946 UNITED STATES PATENT OFFICE STRUCTURAL UNIT Albert W. Franklin, New York, N. Y. Application March 24, 1945, Serial No. 584,523
3 Claims. (Cl. 250-14) This invention relates to a novel structure unit comprising a sheet of material having superposed thereon a sheet of metal or the like which has been simultaneously formed into a predetermined conilguration and attachd to the underlying supporting sheet.
This invention more specifically relates to antenna construction as employed in connection with radio apparatus and particularly with radio receivers.
An object of this invention is to provide a novel form of antenna structure for this purpose.
More specific objects of the invention are con- .cerned with antenna structure and a method of producing it whereby it may be manufactured at extremely low cost on a mass production basis by the use of simple automatic machinery.
It is, therefore, another object of the invention to provide a structurally simple antenna which is exceedingly inexpensive to manufacture.
A still more specific object of the invention is to provide a combined antenna and back or housing closure for radio receiving sets comprising a single unit.
Other objects of the invention will be apparent from the following disclosure of the single embodiment thereof illustrated in the attached drawing.
This invention resides substantially in the combination, construction, arrangement and relative location of parts, as will be described in detail below.
In the accompanying drawing- Figure 1 is a plan view of a combined radio receiving set back or closure and antenna unit:
Figure 2 is an edge elevational view of the unit; and
Figure 3 is a cross-sectional view taken on the line 3-3 of Figure 2 and including a diagrammatic illustration of a portion of the stamping die by means of which the antenna is formed.
In modern radio receiving sets, particularly of the type used for broadcast reception, the electrical components are contained within a decorative housing or cabinet. Such cabinets are usually constructed with a removable back or closure to facilitate access to the interior for repair and replacement of parts.
It is also common in the present day manufacture of such sets to include a built in antenna usually in the form of a loop antenna of such particular configuration as to make it physically compatible with the space provided therefor. These antennas as now'made are usually in the form of wound, single layer. open coils supported by some form of spider structure to hold the turns in spaced relation. Without going into detail, it will be apparent, particularly from the following disclosure of this invention, that the manufacture of such wound coils is relatively expensive particularly because of the labor item which is the largest item of cost in the manufacture of these and similar devices.
In accordance with this invention the labor factor is reduced, it is believed, to an absolute minimum with the result that the cost of manufacture of the unit has been greatly reduced.
As illustrated in the drawing, a panel I0 is of some suitable insulating material oi which there is a wide range and variety of products commercially available on the market. For example, it may be made of pressed fiber board, plastic and thermosetting materials, wood and the like. specific examples of suitable commercial products so are "Bakelite," Masonite, Vulcanite and the like. The panel It will, of course, be made of suitable configuration to fit on or in the back of the cabinet of the radio receiving set of which it is to become a part and, as illustrated, will usually as consist of a simple rectangular sheet of the material of the proper thickness. Secured in any suitable manner on what will be the inner face of the panel I 0 is a thin sheet II of some suitable conducting material such as copper, aluminum, and the like. The sheet I! will serve its intended purpose if it has a thickness or the order of a few thousandths of an inch and it may be attached to the panel I in any suitable manner as, for example, by means of rivets or bolts I! or, if desired, the parts ill and I! can be attached together by means of an adhesive. In the practice of this invention, it is probable that the parts l0 and I2 permanently bonded together will be available as a commercial product.
In accordance with the embodiment illustrated in the drawing, the sheet I! of metal is processed in one operation to form it into a continuous band in the form of convolutions of gradually decreasing diameter and of any suitable and practical configuration. As illustrated in the drawing, the metal sheet 12 has been cut into concentric convolutions I! of generally rectangular form. In the process of cutting the sheet, the convolutions are spaced from each other by an air gap H. The inner terminal end is provided with any suitable form of circuit connecting means such as the integral tab ii. In the form illustrated, the convolutions are enclosed within a terminal portion is of the sheet I! which, as shown, is exterlorly ofrectangular 3 shape. that is, the original shape of the metal sheet it. The other terminal connection to the antenna can be made, for example, by means or the pigtail ll. As clearly illustrated in Figure l, the central portion of the sheet I! is cut out so that the convolutions l3 terminate at their inner end at the tab II. This iorms a true loop antenna in accordance with well known principles in the art of radio communications. In this connection it will be apparent that in providing the unit composed of the insulating panel and the attached metal sheet I! that the metal sheet can originally be in the form of a hollow configuration so that the central area is open eliminating the necessity of removing the central portion or the sheet not cut into convolutions. This modiflcation is a matter of economy in material and labor costs.
This physical structure is capable of manufacture by means oi a simple operation which may be assigned to an automatic machine such as a punch press. The back panel In with the attached metal sheet I! is laid on a platen with the metal sheet lacing upwardly, for example, and positioned with respect to a vertical reciprocable die 20, a sectional view of a portion of which is shown in Figure 3. The die will consist of a block of suitable material such as is commonly used for such dies, such as steel, having formed on the end face thereof a continuous groove 2| forming a continuous helical cutting edge which appears at 22 in this figure. When this die is forced against the metal sheet I! under sufllcient pressure, it will be seen that in one stroke it will cut the thin metal sheet l2 into the structure previously described. The convolutions I! will, in cross-sectional shape, be of arcuate form as is clearly illustrated in Figure 3. The cutting edges 22 will bite into the panel It to form the acutely angled grooves ll and by this same action separate the severed edges of the adjacent convolutions II to provide an air gap between them. An automatically operating punch press when fed with units comprising the panel ill and attached metal sheet l2 can cut the sheet into a loop antenna with one blow. The crimping, bending or deforming oi the convolutions l3 as they are formed by this cutting operation will serve to further clinch them to the panel HI and hold them in place.
It will be seen that by this simple procedure a combined back and antenna tor a radio receivin set can be inexpensively produced on a high production rate basis with a very minimum of hand labor required.
As alternative methods oi proceedingby means or which the resulting article would come within the scope of the claims hereof, it is contemplated that the convolutions comprising the antenna either in the form illustrated herein or equivalent iorms can be applied to the insulating sheet ll by electroplating or by application under prusure by what might be termed branding." It is also within the scope or this invention to form the convolutions from a sheet of metal by cutting methods to form the spaces il by variom well known metal cutting machines.
It will be apparent to those skilled in the art that the details of the subject matter herein disclosed are capable of considerable variation without departure from the novel subject matter thereof and I do not, therefore, desire to be strictly limited to the specific embodiment dlsclosed herein for illustrative purposes but rather to the scope of the claims granted me.
What is claimed is:
1. An air dielectric inductance comprising a panel of insulating material and a continuous metal strip formed from a metal sheet and at tached to one face 0! said panel in the form of a spiral, the planar width of said strip being equal to the pitch of said spiral and said strip being in channel form to provide a free air space between adjacent turns of said spiral.
2. An electrical device comprising a panel of insulating material and an inductance formed from a sheared sheet of metal, attached to one face of the panel, consisting of a plurality of spaced convolutions in spiral arrangement. the convolutions forming a single continuous cmductor defined by a single shear line and the planar width of the conductor being equal to the pitch of said convolutions.
3. An inductance for electrical circuits comprising a panel of insulating material and a continuous ribbon conductor of non-planar crosssection secured to one race thereof in spiral convolutions, said conductor being formed from a sheared sheet of metal and the planar width of said conductor being equal to the pitch oi said spiral.
ALBERT W. FRANKLIN.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US584523A US2401472A (en) | 1945-03-24 | 1945-03-24 | Structural unit |
US607605A US2451725A (en) | 1945-03-24 | 1945-07-28 | Method of making a structural unit |
FR918687D FR918687A (en) | 1945-03-24 | 1945-12-10 | Antenna for radio-electric device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US584523A US2401472A (en) | 1945-03-24 | 1945-03-24 | Structural unit |
Publications (1)
Publication Number | Publication Date |
---|---|
US2401472A true US2401472A (en) | 1946-06-04 |
Family
ID=24337664
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US584523A Expired - Lifetime US2401472A (en) | 1945-03-24 | 1945-03-24 | Structural unit |
Country Status (2)
Country | Link |
---|---|
US (1) | US2401472A (en) |
FR (1) | FR918687A (en) |
Cited By (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2451725A (en) * | 1945-03-24 | 1948-10-19 | Jacob Poster | Method of making a structural unit |
US2492772A (en) * | 1946-05-09 | 1949-12-27 | Gen Electric | Loop antenna |
US2506604A (en) * | 1947-02-01 | 1950-05-09 | Robert P Lokker | Method of making electronic coils |
US2535674A (en) * | 1946-05-11 | 1950-12-26 | Albert W Franklin | Die for cutting electrical units |
US2610248A (en) * | 1949-01-03 | 1952-09-09 | Avco Mfg Corp | Radio frequency coupling circuit |
US2622054A (en) * | 1946-05-11 | 1952-12-16 | Albert W Franklin | Method of making an electrical unit |
US2626206A (en) * | 1951-09-10 | 1953-01-20 | Etched Products Corp | Method of making circuit panels |
US2632693A (en) * | 1950-10-30 | 1953-03-24 | Honeywell Regulator Co | Method of producing an electrical wiring grid |
US2647852A (en) * | 1950-01-28 | 1953-08-04 | Albert W Franklin | Design forming and attaching method |
US2772501A (en) * | 1956-05-31 | 1956-12-04 | Robert J Malcolm | Method of manufacturing electrical circuit components |
US2843829A (en) * | 1952-12-30 | 1958-07-15 | Du Mont Allen B Lab Inc | Electrical inductance |
US3013919A (en) * | 1958-04-03 | 1961-12-19 | Polyform Plastics Corp | Laminated strap |
US3408735A (en) * | 1964-12-01 | 1968-11-05 | Eisler Paul | Method of making patterned foil webs |
US3524191A (en) * | 1968-04-12 | 1970-08-11 | Hermann W Ehrenspeck | Endfire antenna array in which the elements of array are bent and have portions running along length of array |
US4187509A (en) * | 1977-06-20 | 1980-02-05 | Knogo Corporation | Wafer and fastener for use in electronic theft detection system |
US4278980A (en) * | 1978-03-30 | 1981-07-14 | Nippon Gakki Seizo Kabushiki Kaisha | Antenna input circuit for radio receiver |
US4546357A (en) * | 1983-04-11 | 1985-10-08 | The Singer Company | Furniture antenna system |
US4579022A (en) * | 1979-12-20 | 1986-04-01 | Fujikura Cable Works, Ltd. | Making process of a die for stamping out patterns |
US6184846B1 (en) | 2000-02-03 | 2001-02-06 | Marconi Commerce Systems Inc. | Loop conductor antenna for fuel dispenser |
US20050198811A1 (en) * | 2004-03-12 | 2005-09-15 | A K Stamping Co. Inc. | Manufacture of RFID tags and intermediate products therefor |
JP2009509426A (en) * | 2005-09-20 | 2009-03-05 | オールフレックス・オーストラリア・プロプライエタリー・リミテッド | Portal antenna |
DE102014220650A1 (en) * | 2014-10-13 | 2016-04-14 | Heraeus Deutschland GmbH & Co. KG | Optimized trace design of metallic materials on ceramic substances |
-
1945
- 1945-03-24 US US584523A patent/US2401472A/en not_active Expired - Lifetime
- 1945-12-10 FR FR918687D patent/FR918687A/en not_active Expired
Cited By (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2451725A (en) * | 1945-03-24 | 1948-10-19 | Jacob Poster | Method of making a structural unit |
US2492772A (en) * | 1946-05-09 | 1949-12-27 | Gen Electric | Loop antenna |
US2535674A (en) * | 1946-05-11 | 1950-12-26 | Albert W Franklin | Die for cutting electrical units |
US2622054A (en) * | 1946-05-11 | 1952-12-16 | Albert W Franklin | Method of making an electrical unit |
US2506604A (en) * | 1947-02-01 | 1950-05-09 | Robert P Lokker | Method of making electronic coils |
US2610248A (en) * | 1949-01-03 | 1952-09-09 | Avco Mfg Corp | Radio frequency coupling circuit |
US2647852A (en) * | 1950-01-28 | 1953-08-04 | Albert W Franklin | Design forming and attaching method |
US2632693A (en) * | 1950-10-30 | 1953-03-24 | Honeywell Regulator Co | Method of producing an electrical wiring grid |
US2626206A (en) * | 1951-09-10 | 1953-01-20 | Etched Products Corp | Method of making circuit panels |
US2843829A (en) * | 1952-12-30 | 1958-07-15 | Du Mont Allen B Lab Inc | Electrical inductance |
US2772501A (en) * | 1956-05-31 | 1956-12-04 | Robert J Malcolm | Method of manufacturing electrical circuit components |
US3013919A (en) * | 1958-04-03 | 1961-12-19 | Polyform Plastics Corp | Laminated strap |
US3408735A (en) * | 1964-12-01 | 1968-11-05 | Eisler Paul | Method of making patterned foil webs |
US3524191A (en) * | 1968-04-12 | 1970-08-11 | Hermann W Ehrenspeck | Endfire antenna array in which the elements of array are bent and have portions running along length of array |
US4187509A (en) * | 1977-06-20 | 1980-02-05 | Knogo Corporation | Wafer and fastener for use in electronic theft detection system |
US4278980A (en) * | 1978-03-30 | 1981-07-14 | Nippon Gakki Seizo Kabushiki Kaisha | Antenna input circuit for radio receiver |
US4579022A (en) * | 1979-12-20 | 1986-04-01 | Fujikura Cable Works, Ltd. | Making process of a die for stamping out patterns |
US4546357A (en) * | 1983-04-11 | 1985-10-08 | The Singer Company | Furniture antenna system |
US6184846B1 (en) | 2000-02-03 | 2001-02-06 | Marconi Commerce Systems Inc. | Loop conductor antenna for fuel dispenser |
US20050198811A1 (en) * | 2004-03-12 | 2005-09-15 | A K Stamping Co. Inc. | Manufacture of RFID tags and intermediate products therefor |
US7250868B2 (en) | 2004-03-12 | 2007-07-31 | A K Stamping Co. Inc. | Manufacture of RFID tags and intermediate products therefor |
JP2009509426A (en) * | 2005-09-20 | 2009-03-05 | オールフレックス・オーストラリア・プロプライエタリー・リミテッド | Portal antenna |
DE102014220650A1 (en) * | 2014-10-13 | 2016-04-14 | Heraeus Deutschland GmbH & Co. KG | Optimized trace design of metallic materials on ceramic substances |
Also Published As
Publication number | Publication date |
---|---|
FR918687A (en) | 1947-02-14 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US2401472A (en) | Structural unit | |
US2451725A (en) | Method of making a structural unit | |
US2610390A (en) | Method of making electrical terminals | |
US2955351A (en) | Method of making a printed circuit | |
US2431393A (en) | Method of forming metal and attaching it to a support | |
US2568169A (en) | Stamped helical coil | |
US2441181A (en) | Method of attaching electrical terminals to insulator cards | |
US2912746A (en) | Method of making printed circuit panels | |
US2957226A (en) | Method of manufacturing terminal lugs | |
US2971249A (en) | Method for applying patterns to base material | |
US2659406A (en) | Apparatus for forming and assembling electrical terminals | |
US3958326A (en) | Method of manufacturing commutator | |
US1926842A (en) | Method of making electrical condensers | |
KR101968097B1 (en) | Wiring compression terminal and manufacturing method of wiring compression terminal | |
US2622054A (en) | Method of making an electrical unit | |
US2699597A (en) | Method of manufacturing finger contacts | |
US3995365A (en) | Method of forming electrical contacts | |
US2535674A (en) | Die for cutting electrical units | |
US3938725A (en) | Method of making articles such as electrically insulated housings using striped laminates | |
US6978535B2 (en) | Pressing device for thin-film circuit and terminal | |
US3377698A (en) | Method of making an electrical circuit | |
CN104064924A (en) | Radio frequency coaxial cable connector and processing and assembling process thereof | |
US2929964A (en) | Construction of electrical apparatus | |
GB1075016A (en) | Method of and tools for making printed circuit boards | |
CN113305203B (en) | Method for processing FFC with fuse structure |