US2401472A - Structural unit - Google Patents

Structural unit Download PDF

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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
Application number
US584523A
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English (en)
Inventor
Albert W Franklin
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to US584523A priority Critical patent/US2401472A/en
Priority to US607605A priority patent/US2451725A/en
Priority to FR918687D priority patent/FR918687A/fr
Application granted granted Critical
Publication of US2401472A publication Critical patent/US2401472A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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)
US584523A 1945-03-24 1945-03-24 Structural unit Expired - Lifetime US2401472A (en)

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 (fr) 1945-03-24 1945-12-10 Antenne pour appareil radio-électrique

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 (fr)
FR (1) FR918687A (fr)

Cited By (22)

* Cited by examiner, † Cited by third party
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 (ja) * 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 ポータルアンテナ
DE102014220650A1 (de) * 2014-10-13 2016-04-14 Heraeus Deutschland GmbH & Co. KG Optimiertes Leiterbahndesign von metallischen Materialien auf keramischen Substanzen

Cited By (23)

* Cited by examiner, † Cited by third party
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 (ja) * 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 ポータルアンテナ
DE102014220650A1 (de) * 2014-10-13 2016-04-14 Heraeus Deutschland GmbH & Co. KG Optimiertes Leiterbahndesign von metallischen Materialien auf keramischen Substanzen

Also Published As

Publication number Publication date
FR918687A (fr) 1947-02-14

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