US3093434A - Molded plug - Google Patents

Molded plug Download PDF

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Publication number
US3093434A
US3093434A US265A US26560A US3093434A US 3093434 A US3093434 A US 3093434A US 265 A US265 A US 265A US 26560 A US26560 A US 26560A US 3093434 A US3093434 A US 3093434A
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United States
Prior art keywords
molded
plug
connections
conductor
insulating material
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
US265A
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English (en)
Inventor
Wallace R Francis
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.)
General Electric Co
Original Assignee
General Electric Co
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Filing date
Publication date
Priority to BE621357D priority Critical patent/BE621357A/xx
Application filed by General Electric Co filed Critical General Electric Co
Priority to US265A priority patent/US3093434A/en
Priority to US155736A priority patent/US3141054A/en
Application granted granted Critical
Publication of US3093434A publication Critical patent/US3093434A/en
Priority to JP1965046466U priority patent/JPS4412992Y1/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R24/00—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
    • H01R24/28—Coupling parts carrying pins, blades or analogous contacts and secured only to wire or cable
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
    • H01R43/20—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for assembling or disassembling contact members with insulating base, case or sleeve
    • H01R43/24—Assembling by moulding on contact members
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R2103/00—Two poles

Definitions

  • the present invention relates to molded Wiring devices such as connectors, and more particularly to electrical connector plugs and the method of manufacture thereof.
  • Prior art wiring devices such as electrical connector plugs, have ybeen economically and expeditiously manufactured by molding a single insulating body around lche connections formed between terminal portions of the contact blade members and the bared conductor ends, and the area adjacent thereto.
  • This body is made of a molded insulating material like rubber or some yother suitable thermoplastic or thermosetting material, such as for example, one of the vinyl molding compounds.
  • the physical and electrical proportions and characteristics of such an insulating body vary widely in accordance with the application for which it is designed. Such a body should invariably, however, have good insulating qualities, be physically strong, and have a neat and compact overall appearance.
  • These strands may be forced to the surface or dangerously near to the surface during the molding process and some of them may be electrically energized when the plug is placed in service.
  • the high molding pressures may also cause the loose strands of one stranded conlductor to be forced laterally toward the loose strands fof another conductor, or toward the terminal portion of the contact blade of this other conductor.
  • Such disarrangemen-t of strands may, of course, create the possibility of short circuiting within the plug body.
  • no app-roach has been utilized, heretofore, which lends itself to the economical manufacture of a molded plug, while at the same time enhancing its physical strength and overall appearance.
  • Another object of my invention is to provide an improved electrical connector which has very good insulating characteristics, is physically strong, and has a neat and compact overall appearance.
  • a further object of my invention is to provide an ⁇ irnproved electrical connector plug which incorporates an insulating housing that is formed by a two-step molding process.
  • An addi-tional object of my invention is to provide an Patented June 11, 1963 *ice 2 improved electrical connector plug having an attractive and relatively inexpensive outer appearance.
  • an electrical connector plug having a plurality of spaced contact blades.
  • Each of these contact blades has a contact portion and a terminal portion.
  • a conductor is mechanically and electrically connected to the terminal portion of each of the blades to form a plurality of spaced connections.
  • An inner body of molded insulating material surrounds each connection and also covers adjacent areas of blade and conductor.
  • An aperture is formed in this body between the spaced connections and their adjacent bared conductors.
  • An outer body of molded insulating material surrounds the inner body and i-t extends through the aperture to further insulate the connections.
  • a very sturdy plug structure is obtained and any loose conductor strands or disarranged conductor is prevented from coming too close to the outer surface of the plug or tending to short circuit within the plug.
  • this plug structure facilitates llexibihty in the selection lof molding materials.
  • a relatively inexpensive molding anaterial may be used for the inner ybody and a more expensive and attractive colored molding material might ybe used for the louter body.
  • FIG. 1 is an elevational view of a pair of contact blades with -the bared conductor ends of a two-conductor rip cord attached thereto;
  • FIG. 2 is an elevational view of the contact blades and bared conductor ends of FIG. l after a premo-lded inner body of molded insulating material has been formed around portions thereof;
  • FIG. 3 is an elevational view, partially in section and partially broken away to show the external and internal construction of an improved connector plug embodying my invention
  • FIG. 4 is an elevational view, partially in section, showing the relationship between the inner and outer insulating bodies
  • FIG. 5 is a perspective view of an improved electrical connector plug embodying my invention.
  • F IG. 6 is an elevational View, partially in section, of an improved angle plug embodying my invention in alternate form thereof;
  • PIG. 7 is a bottom view of the angle plug of FIG. 6, partially in section.
  • FIG. 8 is a perspective view of the improved angle plug embodying my invention.
  • each of these contact blades 1 is of one-piece spring strip construction and includes a at metal strip which is folded upon itself at the outer end to provide a spring acting outer contact portion 3 and a relatively fixed terminal portion 5. (See also FIG. 2.)
  • the outer contact portion 3 of each blade has a pair of aligned holes 7 for engaging the usual projections of a mating female receptacle.
  • Terminal portion 5 of each contact blade 1 includes an integral means such as tab extensions formed thereon, for securing the bared end of a conductor thereto. As shown in FIG.
  • conductors 9 to illustrate this aspect of my invention, and these conductors are part of a two-conductor rip cord 11.
  • Each conductor 9 includes a number of stranded wires 10 which are surrounded by the tab extensions of the contact blades to physically and electrically attach them thereto at connections 6 in the well-known manner.
  • FIGS. 2-4 a single molded insulating body is not formed around connections 6 as is the conventional custom.
  • I have formed an intermediate or inner body 13 around these connections, before forming my finished plug 15 therefrom.
  • Body 13 individually surrounds each connection 6 and its associated bared conductor end with molded insulating material.
  • Aperture 16 is also formed in the inner body between each connection 6. (See FIG. 2.)
  • This aperture may be of any suitable configuration, such as a notch or a slot, but for purposes of illustratingy my invention, the configuration of the aperture is in the form of an isosceles triangle.
  • Body 17 of this triangular aperture is spaced slightly from and generally parallel to front wall 19 of body 13, as shown in FIG. 2. This leaves strengthening rib 20 extending parallel to and adjacent to outer wall 19.
  • the apex 18 of aperture 16 is adjacent to and disposed between the ends of the integral insulation of each conductor. Triangular aperture 16 thus physically separates connections 6 and their associated bared conductor ends. It will also be noted that I have formed a shallow central recess 21 in the outer face of front wall 19. 'Ihe purpose of this recess shall hereinafter become apparent.
  • Body 13 may consist of a relatively hard plastic material which is of low cost, such as polystyrene. Of course, any other suitable molding material could be also used, such as, for example, polyvinyl chloride.
  • the type or color of insulating material which is used in this premolded body 13 may vary widely depending upon the application for which the connector plug 15 is to be used.
  • I For parting conductors 9 of the rip cord angularly in the direction of their respective attached contact blades 1, I have molded angular surfaces 23 into body 13. These surfaces 23 are disposed so as to provide an acute angle from outwardly projecting edge 24, for securely and rigidly supporting the parted conductors of the rip cord within molded body 13.
  • Body 13 may be formed by any suitable premolding operation, such as injection molding. Any loose strands of bared conductor 10 which are forced to the surface of inner body 13 during the premolding operation would of necessity be adjacent to or contiguous with the outer surface of body 13. To illustrate this, in FIG. 2, loose conductor strands a and b have been indicated in the vicinity of the outer surface of inner body 13. The premolding operation contains such loose strands as these within the limits of the premolded body 13. Any laterally extending loose conductor strands, such as indicated by c and d of FIG. 2, which might otherwise be forced together and touch or short out within the plug, are also physically separated by aperture 16 of the inner body. Aperture 16, therefore, performs an important function in my plug, by eliminating the possibility of short circuiting therein.
  • premolded body 13 After premolded body 13 has been formed around connections 6 and their associated bared conductor ends, my invention includes the benefit of providing a subsequent or final molding operation. Any suitable molding operation may again be used, such as injection molding.
  • molded outer insulating body 25 After the premolded body 13 has been formed, to provide a further insulating support for the connections and their adjacent portions of associated blades and conductors, I then form molded outer insulating body 25 around body 13.
  • FIhis outer molded body 25 is of one-piece construction and provides additional insulation for my premolded assembly while at the same time enhancing the flexibility of the process for manufacturing a connector plug.
  • Body 25 may be of polyvinyl chloride material, polystyrene, or any other suitable plastic material.
  • this outer insulating body 25 may be either a soft, supple material, thereby providing a surface which is readily grippable and pleasant to the touch, or it may be a hard and brittle type of plastic material, thus facilitating a very secure plug structure.
  • this outer molded body may consist of a colored plastic substance which provides an attractive appearance to the eye. A luminous substance could also be used for this outer body.
  • Body 25 surrounds the inner body 13 and is interlocked therewith. More particularly, bridge portion 27 of outer body 25 extends transversally through aperture 16 of the premolded body 13 to provide a secure interlocking relationship between the mated insulating bodies. Rib or bump 29 of the outer body extends inwardly to engage shallow recess 21 of the inner body 13, and thus provides an additional interlocking relationship between the bodies. The interlocking or interdigitating cooperation between the two molded insulating bodies 13 and 25 thus provides a sturdy integrated housing for my connector plug.
  • a relatively low cost insulating material such as polystyrene
  • any combination of relatively soft and relatively hard molding compounds, or relatively expensive and relatively inexpensive molding compounds may be utilized for the respective premolded and subsequently molded bodies 13 and 25. If the application calls for it, for instance, a very thin layer of more expensive colored insulating material may be used for the outer insulating body 25, thus economizing on the overall cost of plug insulating material. It will also be understood that the two-step molding process lends itself to the production of more rigidly held contact blades.
  • each individual molding step easier than the use of one molding operation, as prescribed by the prior art. For instance, in using a machine which is designed to carry the contacts from a loading station to a first molding station, then to a second molding station, and then to an ejection station, it is possible to obtain a very high output per hour. The reason for this high output is because the first and second individual molding steps are now easier ⁇ and quicker than the single large molding step which .was formerly used.
  • FIGS. 6-8 illustrate va modified form of my invention wherein angle-type connector plug 30 is manufactured by my double-shot molding process.
  • Plug 30 has two contact blades 32 which are functionally similar to blades 1 of plug 15. (See FIG. 8.) As best seen in FIG. 7, blades 32 are crimped to the bared ends 34 ofthe outermost conductors 36 of a three-conductor rip cord 40, to form connections 38. The conductors of the rip cord 40 are, of course, disposed perpendicularly with respect to blades 32, to provide the angular plug configuration. Interposed between conductors 36 is a central grounding conductor 42, which is connected to a cylindrical hollow grounding contact 44 at connection 46, by crimping the hollow contact thereupon. (See FIG.
  • premolded inner body 48 is first molded around connections 38 and 46 and the area adjacent thereto. (See FIG. 7.) Body 4S thus contains any loose strands or ⁇ disarranged conductors within itself. Slot 50 is formed in inner body 4S between connections 38. As best seen in FIG. 7, the length of this slot Ialso provides a gap between each bared conductor 34 and the bared end of conductor 42.. Slot 50 thus serves to provide the advantages of preventing any short circuiting between the strands or ⁇ disarranged portions of the adjacent bared conductor ends and of also providing an interlocking relationship between body 48 and outer insulating body 52.
  • outer insulating body 52 is molded around body 48.
  • Outer body 52 surrounds inner body 48 ⁇ and is interlocked therewith by cooperation with slot 50 to efliciently eliminate the problem of the emergence of electrically energized loose strands in the area adjacent the surface of the molded insulating body.
  • plug 30 also provides protection against short circuiting within the plug. Accordingly, all of the aforementioned functional advantages of connector plug have thus been efficiently incorporated in angular connector plug 30.
  • molded outer body is completely encompassing the molded inner body, it will be lapparent in some instances that .a molded oute-r body may be formed which only partially surrounds the inner body and at the same time provides all of the beneficial aspects of my invention.
  • the face ofthe inner body through which the contacts extend could be left uncovered .by insulating material of the outer body.
  • my new 'and improved wiring device and the method for manufacturing it provide an efiicient and advantageous means Ifor economically eliminating the problem of the emergence of electrically energized loose strands or bared conductors in the area adjacent the surface of a molded insulating body.
  • my invention afiords reliable protection against short circuiting within the plug. This construction may be efficiently utilized for obtaining very rigidly held plug blades.
  • overall -fiexibility in the selection of finished molding materials is clearly afforded by use of the two-shot molding process.
  • a molded wiring device comprising a plur-ality of spaced contacts, an electrical cord having a plurality of conductors mechanically and electrically connected to said contacts to form a plurality of spaced connections, a first body of molded insulating material surrounding said connections, and a second body of molded insulating material surrounding said first body and having a section interposed between said connections thereby to further insulate said connections and strengthen said device.
  • a molded electrical connector comprising a plurality of spaced contacts, an electrical cord having a plurality of conductors mechanically and electrically connected to said contacts to form a plurality of spaced connections, a first body of molded insulating material surrounding said connections, at least one aperture formed in said first body between said spaced connections, and a second body of molded insulating material surrounding said first body .and extending through said aperture to further insulate said connections and strengthen said device.
  • a molded electrical connector plug comprising a plurality of spaced contact blades, each of said blades including a cont-act portion and a terminal portion, a conductor mechanically and electrically connected to the terminal portion of each of said blades to form a plurality of spaced connections, a first body of molded insulating material surrounding e-ach of said connections and any bared conductor adjacent thereto, at least one aperture formed in said first body between said spaced connections and any bared conductor portions associated therewith, and a second body of molded insulating material surrounding said iirst body and extending through said aperture to further insulate said connections and strengthen said plug, said contact portions of said contact blades extending outwardly from said first and second bodies for mating with a suitable female connector.
  • a molded electrical connector plug comprising a plurality of spaced contact blades, each of said members including a contact portion and a terminal portion, a stranded conductor mechanically and electrically connected to the terminal portion of each of said members to form a plurality of spaced connections, la first body of molded insulating material surrounding said spaced connections and any bared conductor adjacent thereto, said first body having a front wall through which said blade members extend outwardly and a rear wall through which said conductors extend outwardly, an aperture formed in said first body between said spaced connections and any bared conductors associated therewith, said aperture being in the configuration of an isosceles triangle the base of which is spaced slightly from and generally -parallel to the front wall of said first body, the portion of said first body between said aperture base and said front Wall serving as a strengthening rib for said first body, and a second body of molded insulating material and one-piece construction surrounding said first body and extending through said aperture to further insulate said connection and strengthen said plug
  • a molded electrical connector plug comprising a pair of spaced blade members, each of said members including a contact portion and a terminal portion, a stranded conductor mechanically and electrically connected to the terminal portion of each of said members to form a plurality of spaced connections, a first premolded body of insulating material surrounding said spaced connections and any bared conductor adjacent thereto, said first body having a front -wall through which said blade members extend outwardly and a -rear wall through which said conductors extend outwardly, an aperture formed in said first body between said spaced connections and any bared conductors associated therewith, said aperture being in the configuration of an isosceles triangle the base of which is spaced slightly from and generally parallel to the front wall of said first body, the portion of said rst body between said aperture base and said front wall serving as a strengthening rib for said first body, and a second subsequently molded body of onepiece of insulating material surrounding said first body and extending through said aperture to further insulate said connections and
  • a molded wiring device comprising a plurality of spaced contacts, an electrical cord having a plurality of conductors mechanically and electrically connected to said contacts to form a plurality of spaced connections, a first body of molded insulating material surrounding References Cited in the le of this patent UNITED STATES PATENTS Gardner Dec. 12, 1939 Indisch etal Feb. 11, 1941 8 Gits et al. June 9, Benander Jan. l2, Webber July 10, Miller et al. May 27, Schaeffer July 20, Dofsen et al Mar. ⁇ 6, Danielson et al. Aug. 26, Gilbert -Tan. 25, Stevens Apr. 17, Bridge et al Feb. 17, Pifer Dec. 1,

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Connector Housings Or Holding Contact Members (AREA)
  • Manufacturing Of Electrical Connectors (AREA)
US265A 1960-01-04 1960-01-04 Molded plug Expired - Lifetime US3093434A (en)

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Application Number Priority Date Filing Date Title
BE621357D BE621357A (en, 2012) 1960-01-04
US265A US3093434A (en) 1960-01-04 1960-01-04 Molded plug
US155736A US3141054A (en) 1960-01-04 1961-11-29 Method for manufacturing molded connector plugs
JP1965046466U JPS4412992Y1 (en, 2012) 1960-01-04 1965-06-09

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US155736A Expired - Lifetime US3141054A (en) 1960-01-04 1961-11-29 Method for manufacturing molded connector plugs

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Cited By (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3303454A (en) * 1964-03-09 1967-02-07 Amp Inc Electrical connector frame construction
US3348744A (en) * 1966-05-20 1967-10-24 Coats & Clark Composite self-sealing cap
US3402385A (en) * 1966-08-01 1968-09-17 Army Usa Moldform receptacle
US3450810A (en) * 1965-02-19 1969-06-17 Bliss Co Method of forming a coupling device
US3555316A (en) * 1968-12-18 1971-01-12 Controls Co Of America Lead attachment for dynamoelectric machine and method of making same
US3668779A (en) * 1969-04-02 1972-06-13 Gen Electric Method of manufacturing double insulated plugs
US3831047A (en) * 1969-08-26 1974-08-20 Bosch Gmbh Robert Constructions in ac generators
US3978581A (en) * 1974-02-23 1976-09-07 Yuko Shindosho Company Limited Method of making a pin plug
US4032214A (en) * 1976-04-21 1977-06-28 Schlumberger Technology Corporation Cable-termination assemblies and methods for manufacturing such assemblies
US4259712A (en) * 1978-07-03 1981-03-31 General Electric Company Sealed, prefocused mount for plastic PAR lamp
US4394057A (en) * 1981-04-15 1983-07-19 Automation Industries, Inc. Double-molded electrical end fitting assembly
US4398785A (en) * 1981-09-28 1983-08-16 Essex Group, Inc. Electrical connector and method of making same
US4445741A (en) * 1981-10-13 1984-05-01 Houston Geophysical Products, Inc. Double-plug seismic connector
US4543448A (en) * 1981-03-30 1985-09-24 N. K. F. Groep B.V. Electrical cord set having a magnetically identifiable conductor, and a method of automatically manufacturing such a cord set
US4582384A (en) * 1984-05-04 1986-04-15 Amp Incorporated Overmolded shielded connector
DE3719210A1 (de) * 1987-06-09 1988-12-29 Kabelmetal Electro Gmbh Kupplungsteil eines elektrischen steckverbinders
US5116238A (en) * 1991-07-05 1992-05-26 Sammy Holloman Reuseable electrical connector
EP0551068A1 (de) * 1992-01-09 1993-07-14 Taller GmbH Modularer elektrischer Gerätestecker
WO1997036345A1 (en) * 1996-03-28 1997-10-02 Belden Wire & Cable Company Variable entry connector
US6230405B1 (en) * 1999-06-11 2001-05-15 Hon Hai Precision Ind. Co., Ltd. Method for manufacturing a cable connector assembly
US20080009200A1 (en) * 2006-07-05 2008-01-10 Fuji Electric Wire Industries Co., Ltd. Power cord
US20090029603A1 (en) * 2007-07-27 2009-01-29 Tamura Corporation Electrical apparatus and method of manufacturing the same
US20110097943A1 (en) * 2009-10-20 2011-04-28 Kiyoshi Namiki Electric power plug and method of producing the same
US20120276771A1 (en) * 2011-04-29 2012-11-01 Doubt Ruxton C Electrical socket adaptor
EP2475052A3 (en) * 2011-01-06 2014-06-18 General Cable Technologies Corporation Laminous multi-polymeric high amperage over-molded connector assembly for plug-in hybrid electric vehicle charging
AU2012200013B2 (en) * 2010-12-30 2015-03-12 General Cable Technologies Corporation Laminous multi-polymeric high amperage over-molded connector assembly for plug-in hybrid electric vechicle charging
US9636959B1 (en) * 2016-01-28 2017-05-02 Hopkins Manufacturing Corporation Trailer wiring connector with finger pull hole and method of making same
US20180272581A1 (en) * 2017-03-21 2018-09-27 Canon Kabushiki Kaisha Integral molding method and integral molding device
US11223156B2 (en) * 2019-03-27 2022-01-11 Advantage Components, Inc. Collar for connector assembly

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4964793U (en, 2012) * 1972-09-18 1974-06-06
JPS5061388U (en, 2012) * 1973-09-30 1975-06-05
NL171506C (nl) * 1976-08-16 1983-04-05 Ijzergieterij Lovink Bv Werkwijze voor het maken van een kabellas tussen twee of meer meeraderige sterkstroomkabels en bij die werkwijze te gebruiken gietvorm.
JPS53138089A (en) * 1977-05-07 1978-12-02 Matsushita Electric Works Ltd Table tap
CA1113980A (en) * 1979-02-26 1981-12-08 Thomas A. Kutnyak Vacuum cleaner hose assembly and two stage injection molding method in making same
US4379610A (en) * 1981-02-09 1983-04-12 Woods Wire Products, Inc. Electrical connector with polarity barrier
US4495130A (en) * 1981-09-28 1985-01-22 Essex Group, Inc. Method of molding an electrical connector
US4461529A (en) * 1982-06-16 1984-07-24 W. L. Gore & Associates, Inc. Strain relief boot
US4556275A (en) * 1983-06-23 1985-12-03 Amp Incorporated Electrical panelboard connector
US4684202A (en) * 1986-08-25 1987-08-04 General Motors Corporation Overmolded electrical connector
US4829670A (en) * 1987-09-30 1989-05-16 Advanced Molding Technology, Incorporated Method of manufacturing an electrical connector box
US5153988A (en) * 1990-03-26 1992-10-13 Raychem Corporation Method of making modular telecommunications terminal block
TWI255085B (en) * 2002-04-02 2006-05-11 Delta Electronics Inc Assembly structure of adapter
AU301499S (en) * 2004-07-28 2005-05-04 Nanjing Chervon Ind Co Ltd Plug
JP5970171B2 (ja) * 2011-11-08 2016-08-17 富士電線工業株式会社 差込プラグ付きコードの製造方法
US9762004B2 (en) * 2014-03-24 2017-09-12 Rocal Corporation Shielded battery receptacle
US9487155B2 (en) * 2014-03-26 2016-11-08 Cheng Uei Precision Industry Co., Ltd. Manufacturing method for a hanging structure of a hands-free mount

Citations (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2183067A (en) * 1938-07-22 1939-12-12 Harold E Wallace Electric plug
US2231289A (en) * 1938-02-16 1941-02-11 Whitney Blake Co Connector plug
US2285963A (en) * 1938-05-06 1942-06-09 Joseph A Gits Knob structure and method of making same
US2308324A (en) * 1940-07-10 1943-01-12 Monowatt Electric Corp Electrical connector and method of manufacturing the same
US2379942A (en) * 1942-12-31 1945-07-10 Bell Telephone Labor Inc Cable terminating means
US2421155A (en) * 1941-07-28 1947-05-27 Mines Equipment Company Electric cable unit and method of making the same
US2445537A (en) * 1945-07-14 1948-07-20 Edward G Schaeffer Method of producing electrical outlet plugs
US2544140A (en) * 1947-12-09 1951-03-06 Floyd J Dofsen Process of forming an article from at least two plastics
FR1011629A (fr) * 1950-02-08 1952-06-25 Prise de courant
US2607957A (en) * 1951-01-02 1952-08-26 Elmer L Danielson Method for forming a composite plastic structure
US2700206A (en) * 1950-04-07 1955-01-25 Gilbert Margaret Doris Method of fabricating electric plugs
DE933095C (de) * 1953-01-22 1955-09-15 Josef Feller Zwei- oder mehrpoliger Stecker fuer Licht- und Kraftanlagen
US2742624A (en) * 1953-07-08 1956-04-17 Whitney Blake Co Electrical plug and socket assembly
FR1122807A (fr) * 1955-02-07 1956-09-13 Mayet Ets Fiche, en particulier pour conducteur électrique souple
US2873482A (en) * 1953-07-28 1959-02-17 Richard B Bridge Method of making a plastic encased article
US2915732A (en) * 1956-06-18 1959-12-01 Sylvania Electric Prod Electric plug

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2382199A (en) * 1942-06-09 1945-08-14 Gen Electric Electric apparatus
FR1150073A (fr) * 1956-04-26 1958-01-07 Comp Generale Electricite Prise de courant à corps en matière plastique surmoulé à l'extrémité d'un câble

Patent Citations (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2231289A (en) * 1938-02-16 1941-02-11 Whitney Blake Co Connector plug
US2285963A (en) * 1938-05-06 1942-06-09 Joseph A Gits Knob structure and method of making same
US2183067A (en) * 1938-07-22 1939-12-12 Harold E Wallace Electric plug
US2308324A (en) * 1940-07-10 1943-01-12 Monowatt Electric Corp Electrical connector and method of manufacturing the same
US2421155A (en) * 1941-07-28 1947-05-27 Mines Equipment Company Electric cable unit and method of making the same
US2379942A (en) * 1942-12-31 1945-07-10 Bell Telephone Labor Inc Cable terminating means
US2445537A (en) * 1945-07-14 1948-07-20 Edward G Schaeffer Method of producing electrical outlet plugs
US2544140A (en) * 1947-12-09 1951-03-06 Floyd J Dofsen Process of forming an article from at least two plastics
FR1011629A (fr) * 1950-02-08 1952-06-25 Prise de courant
US2700206A (en) * 1950-04-07 1955-01-25 Gilbert Margaret Doris Method of fabricating electric plugs
US2607957A (en) * 1951-01-02 1952-08-26 Elmer L Danielson Method for forming a composite plastic structure
DE933095C (de) * 1953-01-22 1955-09-15 Josef Feller Zwei- oder mehrpoliger Stecker fuer Licht- und Kraftanlagen
US2742624A (en) * 1953-07-08 1956-04-17 Whitney Blake Co Electrical plug and socket assembly
US2873482A (en) * 1953-07-28 1959-02-17 Richard B Bridge Method of making a plastic encased article
FR1122807A (fr) * 1955-02-07 1956-09-13 Mayet Ets Fiche, en particulier pour conducteur électrique souple
US2915732A (en) * 1956-06-18 1959-12-01 Sylvania Electric Prod Electric plug

Cited By (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3303454A (en) * 1964-03-09 1967-02-07 Amp Inc Electrical connector frame construction
US3450810A (en) * 1965-02-19 1969-06-17 Bliss Co Method of forming a coupling device
US3348744A (en) * 1966-05-20 1967-10-24 Coats & Clark Composite self-sealing cap
US3402385A (en) * 1966-08-01 1968-09-17 Army Usa Moldform receptacle
US3555316A (en) * 1968-12-18 1971-01-12 Controls Co Of America Lead attachment for dynamoelectric machine and method of making same
US3668779A (en) * 1969-04-02 1972-06-13 Gen Electric Method of manufacturing double insulated plugs
US3831047A (en) * 1969-08-26 1974-08-20 Bosch Gmbh Robert Constructions in ac generators
US3978581A (en) * 1974-02-23 1976-09-07 Yuko Shindosho Company Limited Method of making a pin plug
US4032214A (en) * 1976-04-21 1977-06-28 Schlumberger Technology Corporation Cable-termination assemblies and methods for manufacturing such assemblies
US4259712A (en) * 1978-07-03 1981-03-31 General Electric Company Sealed, prefocused mount for plastic PAR lamp
US4543448A (en) * 1981-03-30 1985-09-24 N. K. F. Groep B.V. Electrical cord set having a magnetically identifiable conductor, and a method of automatically manufacturing such a cord set
US4394057A (en) * 1981-04-15 1983-07-19 Automation Industries, Inc. Double-molded electrical end fitting assembly
US4398785A (en) * 1981-09-28 1983-08-16 Essex Group, Inc. Electrical connector and method of making same
US4445741A (en) * 1981-10-13 1984-05-01 Houston Geophysical Products, Inc. Double-plug seismic connector
US4582384A (en) * 1984-05-04 1986-04-15 Amp Incorporated Overmolded shielded connector
DE3719210A1 (de) * 1987-06-09 1988-12-29 Kabelmetal Electro Gmbh Kupplungsteil eines elektrischen steckverbinders
US5116238A (en) * 1991-07-05 1992-05-26 Sammy Holloman Reuseable electrical connector
EP0551068A1 (de) * 1992-01-09 1993-07-14 Taller GmbH Modularer elektrischer Gerätestecker
WO1997036345A1 (en) * 1996-03-28 1997-10-02 Belden Wire & Cable Company Variable entry connector
US6230405B1 (en) * 1999-06-11 2001-05-15 Hon Hai Precision Ind. Co., Ltd. Method for manufacturing a cable connector assembly
US20080009200A1 (en) * 2006-07-05 2008-01-10 Fuji Electric Wire Industries Co., Ltd. Power cord
US7731531B2 (en) * 2006-07-05 2010-06-08 Fuji Electric Wire Industries Co., Ltd. Power cord
US20090029603A1 (en) * 2007-07-27 2009-01-29 Tamura Corporation Electrical apparatus and method of manufacturing the same
US7682204B2 (en) * 2007-07-27 2010-03-23 Tamura Corporation Electrical apparatus and method of manufacturing the same
US8029318B2 (en) * 2009-10-20 2011-10-04 Kawasaki Electric Wire Co., Ltd. Electric power plug and method of producing the same
US20110097943A1 (en) * 2009-10-20 2011-04-28 Kiyoshi Namiki Electric power plug and method of producing the same
AU2012200013B2 (en) * 2010-12-30 2015-03-12 General Cable Technologies Corporation Laminous multi-polymeric high amperage over-molded connector assembly for plug-in hybrid electric vechicle charging
EP2475052A3 (en) * 2011-01-06 2014-06-18 General Cable Technologies Corporation Laminous multi-polymeric high amperage over-molded connector assembly for plug-in hybrid electric vehicle charging
US20120276771A1 (en) * 2011-04-29 2012-11-01 Doubt Ruxton C Electrical socket adaptor
US8777646B2 (en) * 2011-04-29 2014-07-15 Ruxton C. Doubt Electrical socket adaptor
US9636959B1 (en) * 2016-01-28 2017-05-02 Hopkins Manufacturing Corporation Trailer wiring connector with finger pull hole and method of making same
US20180272581A1 (en) * 2017-03-21 2018-09-27 Canon Kabushiki Kaisha Integral molding method and integral molding device
US11223156B2 (en) * 2019-03-27 2022-01-11 Advantage Components, Inc. Collar for connector assembly

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JPS4412992Y1 (en, 2012) 1969-05-30
BE621357A (en, 2012)
US3141054A (en) 1964-07-14

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