US2688123A - Electrical connector - Google Patents

Electrical connector Download PDF

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Publication number
US2688123A
US2688123A US281412A US28141252A US2688123A US 2688123 A US2688123 A US 2688123A US 281412 A US281412 A US 281412A US 28141252 A US28141252 A US 28141252A US 2688123 A US2688123 A US 2688123A
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United States
Prior art keywords
contact
holder
contacts
channel
blade
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Expired - Lifetime
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US281412A
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English (en)
Inventor
Cedric M Benham
Lock Tom
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Individual
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Individual
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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
    • H01R24/76—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure with sockets, clips or analogous contacts and secured to apparatus or structure, e.g. to a wall
    • 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
    • H01R24/86—Parallel contacts arranged about a common axis
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/40—Securing contact members in or to a base or case; Insulating of contact members
    • H01R13/42—Securing in a demountable manner
    • H01R13/428—Securing in a demountable manner by resilient locking means on the contact members; by locking means on resilient contact members
    • H01R13/432—Securing in a demountable manner by resilient locking means on the contact members; by locking means on resilient contact members by stamped-out resilient tongue snapping behind shoulder in base or case
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/64—Means for preventing incorrect coupling
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R2107/00—Four or more poles

Definitions

  • the holderseach include asmanyas thirty contacts arranged in-a row or'rows.
  • contact blades havebeen xmoulded in situ in their-holder; inother cases,. contact blades or sockets have-been retained in their holderby staking, i. e. by expanding portions of the blades or sockets-onto the adjacent end-face of: the holder, or by-twisting the protruding parts of the contact-blades orsockets out of their normal planes after-assembling the contacts inthe holder.
  • the blade contacts should be capable of enteringinto the socket con- :tacts without undue force having to-be applied, and should have ample electrical engagement'with I such sockets.
  • the primary object of this invention-isto provideimprovedelectrical plugand socket connectors of the kind referred to and particularlythose in which-the blade and socket contacts are-made of sheet metaland mechanically locked in-their holders.
  • the said contact may be so constructed as to have a pair of spaced parallel longitudinally disposed bearing portions of substantial length which are adapted to press on the opposite adjacent surfaces of the channel in the holder into which the blade or socket is placed, the said engagement providing firm location and retention of the contact in its holder and thus eliminating any substantial float of the contact with respect to the holder.
  • the contact is preferably constructed so as to have such a degree of springiness or resilience as will allow two cooperating contacts satisfactorily to accommodate one another when being interengaged.
  • Figure l is a side elevation of an electrical connector constructed in accordance with this invention and formed in two parts, one of which has two straight rows of equally longitudinally spaced blade contacts and the other of which has two straight rows of corresponding longitudinally spaced socket contacts into which said blade contacts are adapted to enter when the two parts of the connector are fitted together;
  • Figure 2 is a plan of the electrical connector shown in Figure 1;
  • Figure 3 is a part-sectional perspective View of the connector shown in Figures 1 and 2 with the two parts of the connector partially separated, the section being taken on line III-III, Figure 2;
  • Figure 4 is a vertical section on line IV-IV, Figure 2;
  • FIG. 5 is a fragmentary perspective view of the socket part of the connector shown in Figures l to 4 with one of the socket contacts shown as being only partially inserted into its holder;
  • Figure 6 is a perspective view of one of the blade contacts of the connector
  • Figure '7 is a similar perspective view of one of the socket contacts of the connector.
  • Figure 8 is a perspective view of a further form of connector constructed in accordance with this invention, the figure showing the invention applied to a coaxial type of connector in which the blade contacts and the socket contacts are arranged in a ring instead of in straight rows.
  • the connector there illustrated comprises two parts respectively marked l and 2, these two parts respectively comprising a holder 4 and a holder 6, the holders 4 and 6 being formed of thermoset synthetic resin, ceramic vulcanised rubber, ebonite or other suitable dielectric.
  • the holder 5 carries a plurality of socket contacts 5 arranged in two parallel straight rows with the socket contacts equally spaced in these rows, whilst the holder 4 is furnished with two straight rows of blade contacts 3, these rows being parallel to one another and the blade contacts being equally spaced in the rows whilst the arrangement of the blade contacts corresponds to that of the socket contacts so that the blade contacts can easily be inserted into and engaged with the socket contacts.
  • each of the holders 4 and 6 comprises a good quality rigid moulding of a thermoset synthetic resin, each holder being rectangular (except for rounded corners) in plan and also rectangular in side and end elevation.
  • each of the holders is or are moulded one or more rows (the drawings show two rows) of similar parallel channels or passages I and '5 (hereinafter called channels) extending completely through the holder from its inner or front surface to its outer or rear surface, the channels of the or each row being equally spaced from one another along the length of the holder, and being of rectangular shape in plan or transverse crosssection.
  • the two rows of channels of each holder are parallel to one another and the channels are correspondingly disposed in the two holders so that when these are placed face to face in register with one another, the channels of the two holders are in alignment with one another.
  • each of the said channels i or I is provided with an internal abutment shoulder 8 or 8 on each of those two opposite internal surfaces 9, 9 or 9', 9' which are parallel to the longitudinal outer surfaces of the holder, these abutment shoulders projecting slightly inwardly of the channel and being inwardly bevelled so as to form a flared or inwardly convergent mouth to the inner or front end of each channel.
  • One of the two said abutment shoulders of each pair is centrally gapped as shown at [0 ( Figures 1, 3 and 4) to facilitate the moulding of a projection (subsequently described) within the channel 'i or 1.
  • each of the said channels 1 and l is provided on one of the said opposite surfaces 5, 9' with a. projection II or H of approximately saw-tooth, ratchet-tooth or buttress form with its square or plane front end [2 or 12 facing the adjacent abutment shoulder 8 or 8' and with its height progressively increasing from its rear towards its front end, i. e. in the direction of insertion of a contact into one of said channels.
  • each holder is integrally furnished with longitudinal and transverse upstanding intersecting ribs [3, 14 or [3, [4 which form a plurality of cells or pockets i5 or l6 to receive the outer or rear end shanks ll of the blade contacts 3 or the outer or rear end shanks 19 of the socket contacts 5 and the electrical connections thereto (such as the soldered connections marked 2! in Figure 5) so as thereby to segregate the connections of the several blade or socket contacts and to increase the electrical insulation between each of them.
  • the said blade contacts 3 are (as will be clearly seen from Figure 6) each formed by a single strip-like blank of springy sheet metal which is a good electrical conductor and which is doubled upon itself at 22 substantially midway between its ends so as to have two portions 23 and 24 lying one upon the other to form the blade proper which will fit into a socket contact to make an reme ies '5 electrical connection.
  • the blade contact is furnished With a hollow open-sided box-like body generally indicated by the reference 34, the oppositeparallel sides 21 and 28 of which are somewhat resilient and adapted, when the blade contact-is introduced endwise into its channel I in the holder, resiliently to bear respectively against :the two abutment shoulder-provided Walls or surfaces 53, 9 of the channel I and thereby firmly .to centralize the blade proper with respect to such channel and firmly to hold the blad in this position.
  • the side 25 of the boxdike body 3d of the blade contact is provided with a rectangular opening 35, the front end 33 (i. e. the end nearest to the :blade proper of the contact) of which acts as a shoulder which is adapted eventually to engage behind the blunt or plane end l2 of the locking projection or tooth l l of the channel 1 into which the contact is introduced.
  • the said locking projection ll will first somewhat inwardly compress the side 23 of the box-like body 34 of the blade contact but will eventually pass into the opening 35 in the adjacent side of such body when the blade contact has passed so far into the channel i that at least one of the outwardly cranked parts 25 and 26 (i. e.
  • the cranked part 25 of the blade contact element is substantially square cornered to form a stop
  • the cranked part 25 of the contact is sloped to form a ramp which rides along the inclined inner surface of the projection l I as the contact is pushed into place in its holder, the side 28 of the body of the contact thus being progressively displaced inwardly until it finally springs outwardly again on the projection ll registering with and entering the opening 35 in 'the body of the contact to lock the latter in the holder.
  • the box-like body M of the blade contact is of substantially the same width (i. e. measured in the longitudinal direction of the holder) as the channel l in which the contact is mounted so that lateral movement, as well as transverse and fendwise movementyof 'the blade is prohibited 'exceptin so far as 'is alfordedbythe resilience of the metalzof which the contact.is made.
  • a socket contact as above described is intro- "ducedinto its channel I of the holder from'the :rear of the latter, the sidelimbs ti and 62 being vfirst compressed somewhat'together; the extent .to which the socket contact can be passed into .the holder is limited by the engagement of the roundedtips 43 of the said side limbs ll and 1-2 of the contact with the said abutment shoulders 18 adjacent the inner or front faceof'the'holder.
  • Thesocket contact is located and locked against endwise movement in the holder by the interengagement of the locking projection-ll behind a shoulder formed by one end of a rectangular opening 46 provided in the adjacent side limb s2 of'the socket contact and into which opening the projection H enters, the limb d2 being resiliently pressed on to the locking projection ll due to the resilience of the body of the socket contact; moreover this body of the contact tends to expand in its channel and as the said body is of substantially the same width as the channel inwhich .it is placed, the contact is firmly and non-floatiingly carried by the holder.
  • the shank i9 ' is slightly narrower than the said body.
  • Theblade contacts 3 and the socket contacts '5 can be inserted into their respective holders .andt from the outer or rear sides thereof as'is illustrated in Figure 5, where one of the socket contacts 5 is shown in the process of "being pushed into its. channel l in the holdert.
  • the electrical connections such as 2! indicated in Figure 5, may be made to the blade or socket :contacts before these are inserted into their holders, thus facilitating themaking of the electrical connections.
  • the abutment shoulders 3 and'ii' prevent the release ofthe contactst and'fi'by the insertion .of instrumentsfrom thelfront ends of thewholders "4 and 6, and. in addition the abutment shoulders 7 8' space the tips 43 of the side limbs 4
  • This is particularly advantageous in connection with the socket contacts since they are frequently at a high electrical potential and users of the connector are safeguarded against shock by the accidental touching of the socket contacts by the protection afforded by the abutment shoulders 8'; thus this part of the connector may be regarded as electrically safe even when in an alive electrical socket.
  • Covers may be provided to enclose the outer or rear ends of the contacts.
  • the holder l may have moulded therein one end of a cylindrical guide or registration pin 4? which projects at right angles from the front face of the holder and is adapted to engage in a correspondingly located guide hole or passage 68 in the other holder 6.
  • the guide or registration pin 4! and the hole or passage 48 are asymmetrically arranged with respect to their holders so that the latter can only be fitted together in one relative position.
  • Figure 8 shows a coaxial electrical connector which is useful for many purposes but which is particularly useful in connection with television apparatus, the connector comprising two electrically insulating holders 4 and 6 having coaxial plug and socket connectors 56 and El, and the holder 4 having a ring of blade contacts 3 similar to those already described with reference to Figures 1 to 7 and each mounted in a channel 7" in the holder 4, also in the same way as that already described with the exception that these channels are arranged in a circular ring instead of in a straight row.
  • the holder t is similarly provided with a ring of channels 7'' similar to the channel 1 already described with reference to Figures 1 to '7 and each containing a socket contact very similar to the socket contacts 5 already described.
  • An electrical connector comprising a moulded rigid insulating holder having a plurality of channels of rectangular cross-section arranged in a row therein, and electrical contacts slidden endwise into each of said channels from the rear end thereof; said electrical contacts each comprising a strip-like sheet metal blank doubled upon itself to provide adjacent parallel limbs positioned at the front part of the contact to engage and make electrical connection with a mating contact, stop means formed by parts of said blank immediately adjacent one end of said parallel limbs and located transversely thereto, resilient bearing portions formed by spaced parts of said blank disposed parallel to said limbs and connected thereto by said stop means, and, at the rear part of the said contact, a connecting portion adapted to be connected to an electrical supply lead, formed by cranking said spaced bearing portions together; abutment means on said holder extending into each of said channels adjacent the front end of the same positively to limit, by engagement with the said stop means thereof, the insertion of the corresponding contact therein; and sawtoothlike locking projections on said holder
  • An electrical connector comprising a moulded rigid insulated holder having a plurality of channels of rectangular cross-section arranged in a row therein, and electrical contacts slidden endwise one into each of said channels; abutment means extending into each of said channels adjacent one end of the same positively to limit the insertion of the corresponding contact therein; a locking projection of saw-tooth shape formed integrally with said holder and extending inwardly into each of said channels between the ends of the same.
  • said electrical contacts each comprising a sheet metal'strip-like blank doubled upon itself to provide adjacent parallel limbs positioned to engage and make electrical connection with a mating contact, resilient bearing portions formed by spaced parts of said blank adjacent said parallel limbs, and a connecting portion, adapted to be connected to an electrical supply lead, formed by cranking said spaced bearing portions together at the end of the doubled blank and remote'from said parallel limbs, the portions of'said blank joining said parailel limbs and said spaced bearing portionsforming stop means positioned to engage said abutment means positively to limit the insertion of said contact into said channel and spacing said connecting portions from said abutment means; one of said spaced bearing portions having between its ends an opening, the front end of which may, when the said contact has been forced past said locking projection and transversely compressed thereby,
  • An electrical connector comprising a moulded rigid insulating holder having a plurality of channels of rectangular cross-section arranged in a row therein, and electrical contacts slidden endwise into each of said channels from the rear end thereof; said electrical contacts each comprising a strip-like sheet metal blank doubled upon itself to provide the blade of a male contact, stop means formed by parts of said blank adjacent said blade being joggled outwardly to be located transversely to said blade, spaced resilient bearing portions formed by joggling parts of said blank adjacent said stop means to lie in planes parallel to said blade but extending in a direction away therefrom, and, at the rear part of the said contact, a connecting portion adapted to be connected to an electrical supply lead, formed by cranking said spaced bearing portions together; abutment means on said holder extending into each of said channels adjacent the front end of the same positively to limit, by engagement with the said stop means thereof, the insertion of the corresponding contact therein; and saw-tooth-like locking projections on said holder and
  • An electrical connector comprising a moulded rigid insulating holder having a plurality of channels of rectangular cross-section arranged in a row therein, and electrical contacts slidden -10 endwise into each of said channels from the rear endthereof; said electrical contacts being female contacts and each comprising a strip-like sheet metal blank doubled upon itself, the doubled portion forming, at the rear part of the contact, a
  • connecting portion adapted to be connected to anelectrical supply lead, spaced resilient bearing portions formed by cranking outwardly the blank adjacent said connecting portion to lie in planes parallel to said connecting portion but extending in a direction away therefrom, contact parts formed by doubling the parts of said blank adjacent said spaced bearing portions inwardly to lie in planes parallel to said spaced bearing parts and therebetween, and stop means formed by the parts of said blank joining said contact parts and said spaced bearing portions, such stop means being located transversely to said bearing portions; abutment means on said holder extending into each of said channels adjacent the front end of the same positively to limit, by engagement with the said stop means thereof, the insertion of the corresponding contact therein; and saw-tooth-like locking projections on said holder and extending inwardly into each of said channels between the ends of the same, the plane of the front end of each said projection being substantially at right angles to the walls of the channel and the height of said locking projection from the wall of the channel by which it is carried progressively decreasing from the said .front end in a
  • An electrical connector comprising a moulded rigid insulating holder having a plurality of channels of rectangular cross-section therethrough, and electrical contacts slidden endwise into each of said channels from the rear end thereof; said electrical contacts each being formed of flat strip metal and comprising four successive parts, these being, respectively, a connecting portion for making electrical wiring connections to the contact, said connecting portions being located, when the contact is in position in said holder, at the rear end of said channel and having its direction of length approximately parallel to the longitudinal axis of the channel; a resilient bearing part located forwardly of said connecting portion and comprising two portions, movable together in a longitudinal direction, but resiliently spaced transversely from each other, said bearing portions being substantially parallel to said connecting portion and positioned to engage opposite internal walls of the channel, when the contact is inserted therein, to locate the contact in said holder; a part serving as stop means between said bearing part and a contact part and located transversely of the length of the contact; and the contact part, approximately parallel to the connecting portion and positioned to engage and make

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  • Connector Housings Or Holding Contact Members (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)
US281412A 1951-04-10 1952-04-09 Electrical connector Expired - Lifetime US2688123A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8345/51A GB700999A (en) 1951-04-10 1951-04-10 Improvements in or relating to electrical plug and socket connectors

Publications (1)

Publication Number Publication Date
US2688123A true US2688123A (en) 1954-08-31

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US281412A Expired - Lifetime US2688123A (en) 1951-04-10 1952-04-09 Electrical connector

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BE (1) BE510582A (US07655688-20100202-C00010.png)
GB (1) GB700999A (US07655688-20100202-C00010.png)

Cited By (39)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2882511A (en) * 1955-07-13 1959-04-14 Nicholas Anton Printed circuit connector
US2907975A (en) * 1953-04-02 1959-10-06 Mccutcheon Raymond Electrical plug with detachable cap
US2908775A (en) * 1956-08-02 1959-10-13 Continental Connector Corp Combined connector and relay
US2909756A (en) * 1955-09-23 1959-10-20 Amp Inc Connector block assembly
US2909755A (en) * 1954-11-22 1959-10-20 Jackson Anton Dual contact receptacle for printed circuits
US2922139A (en) * 1954-09-29 1960-01-19 Buchanan Electrical Prod Corp Interlocking electrical terminal block
US2927296A (en) * 1956-04-25 1960-03-01 Burroughs Corp Circuit connector for printed cards
US2966651A (en) * 1955-03-10 1960-12-27 Hubbell Inc Harvey Three to two-wire plug adapter with grounding pigtail
US2984814A (en) * 1957-07-12 1961-05-16 James K Scott Separable connector for printed circuit cards
US2999222A (en) * 1957-10-22 1961-09-05 Gen Electric Electric control unit
US3007129A (en) * 1958-03-21 1961-10-31 Square D Co Gang connector for terminal boards
US3009130A (en) * 1959-03-23 1961-11-14 Amp Inc Pin-socket connector
US3012220A (en) * 1957-10-02 1961-12-05 Fox Benjamin Honeycomb insulator for quick detachable connector
US3012159A (en) * 1959-08-31 1961-12-05 Gen Electric Terminal arrangement for electrical apparatus
US3020513A (en) * 1958-02-03 1962-02-06 Whitney Blake Co Tamper proof electrical connector
US3027538A (en) * 1958-01-20 1962-03-27 Siemens Edison Swan Ltd Electrical plug-in type contact pins
US3069652A (en) * 1959-03-23 1962-12-18 Burndy Corp Electrical connector for printed circuit boards
US3078437A (en) * 1959-07-10 1963-02-19 Westinghouse Electric Corp Wiring device
US3085220A (en) * 1959-06-29 1963-04-09 Amp Inc Electrical pin board
US3088091A (en) * 1959-05-06 1963-04-30 R L Linn Corp Electrical terminal block connection and terminal members therefor
US3097033A (en) * 1959-02-09 1963-07-09 Microdot Inc Universal electric connector
US3102768A (en) * 1961-12-06 1963-09-03 Burndy Corp Electrical connector
US3141717A (en) * 1959-08-03 1964-07-21 Malco Mfg Co Electrical socket
US3146055A (en) * 1961-09-18 1964-08-25 Allis Chalmers Mfg Co Plug in terminal block
US3193794A (en) * 1962-06-26 1965-07-06 Underwriters Safety Device Co Terminal blocks and connectors therefor
US3233209A (en) * 1960-12-01 1966-02-01 Burndy Corp Electrical terminal block assembly
US3239796A (en) * 1961-08-01 1966-03-08 Connectors Cons Inc Unitary rigid wire connectors and method of making wire connections
US3271728A (en) * 1963-09-12 1966-09-06 W A Beauchaine & Sons Inc Electrical connector
US3274532A (en) * 1959-02-18 1966-09-20 United Carr Inc Connector for printed wire board
US3310645A (en) * 1965-10-07 1967-03-21 Smith Corp A O Solder pot switch control
US3434099A (en) * 1966-11-14 1969-03-18 Electronics Corp America Connector structure
US3491330A (en) * 1967-09-22 1970-01-20 Amp Inc Connector keying system
US3517803A (en) * 1967-11-07 1970-06-30 Mary Frompovicz Electrical contact carrier strip
US3656090A (en) * 1969-05-23 1972-04-11 Smiths Industries Ltd Two-part electrical coupling
US4084877A (en) * 1969-10-22 1978-04-18 The Siemon-Dynamic Mfg. Company Electrical connectors and terminal connecting block
FR2400783A1 (fr) * 1977-08-16 1979-03-16 Simeone Jean Pierre Prise jumelee pour alimentation electrique et television
US4468079A (en) * 1969-10-22 1984-08-28 The Siemon Company Electrical connectors and terminal connecting blocks
US4606592A (en) * 1982-03-18 1986-08-19 Vernitron Corporation Electrical connector assembly with integral plug and socket modules
US5067915A (en) * 1984-10-23 1991-11-26 Siemens Aktiengesellschaft Plug-in component

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7014081B2 (ja) * 2018-07-30 2022-02-01 トヨタ自動車株式会社 充電器

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US1700167A (en) * 1927-06-14 1929-01-29 Francis C Kollath Lamp and guard handle
US1841736A (en) * 1929-03-11 1932-01-19 Howard B Jones Connecter for electrical lines
US2360917A (en) * 1939-08-08 1944-10-24 Charles E Wade Connector
US2410618A (en) * 1942-10-06 1946-11-05 Victor I Zelov Electrical device
US2433358A (en) * 1941-10-08 1947-12-30 Waldo L Garberding Separable electrical connector
US2466370A (en) * 1946-05-22 1949-04-05 Horatio H Burtt Electrical connector
US2587239A (en) * 1949-08-18 1952-02-26 Clay M Smith Snap type connector for electrical wires
US2624773A (en) * 1948-06-09 1953-01-06 Gen Motors Corp Socket connector having removable terminals
US2664552A (en) * 1950-06-19 1953-12-29 Ericsson Telefon Ab L M Device for connection of cables by means of plugs and sockets

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1700167A (en) * 1927-06-14 1929-01-29 Francis C Kollath Lamp and guard handle
US1841736A (en) * 1929-03-11 1932-01-19 Howard B Jones Connecter for electrical lines
US2360917A (en) * 1939-08-08 1944-10-24 Charles E Wade Connector
US2433358A (en) * 1941-10-08 1947-12-30 Waldo L Garberding Separable electrical connector
US2410618A (en) * 1942-10-06 1946-11-05 Victor I Zelov Electrical device
US2466370A (en) * 1946-05-22 1949-04-05 Horatio H Burtt Electrical connector
US2624773A (en) * 1948-06-09 1953-01-06 Gen Motors Corp Socket connector having removable terminals
US2587239A (en) * 1949-08-18 1952-02-26 Clay M Smith Snap type connector for electrical wires
US2664552A (en) * 1950-06-19 1953-12-29 Ericsson Telefon Ab L M Device for connection of cables by means of plugs and sockets

Cited By (39)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2907975A (en) * 1953-04-02 1959-10-06 Mccutcheon Raymond Electrical plug with detachable cap
US2922139A (en) * 1954-09-29 1960-01-19 Buchanan Electrical Prod Corp Interlocking electrical terminal block
US2909755A (en) * 1954-11-22 1959-10-20 Jackson Anton Dual contact receptacle for printed circuits
US2966651A (en) * 1955-03-10 1960-12-27 Hubbell Inc Harvey Three to two-wire plug adapter with grounding pigtail
US2882511A (en) * 1955-07-13 1959-04-14 Nicholas Anton Printed circuit connector
US2909756A (en) * 1955-09-23 1959-10-20 Amp Inc Connector block assembly
US2927296A (en) * 1956-04-25 1960-03-01 Burroughs Corp Circuit connector for printed cards
US2908775A (en) * 1956-08-02 1959-10-13 Continental Connector Corp Combined connector and relay
US2984814A (en) * 1957-07-12 1961-05-16 James K Scott Separable connector for printed circuit cards
US3012220A (en) * 1957-10-02 1961-12-05 Fox Benjamin Honeycomb insulator for quick detachable connector
US2999222A (en) * 1957-10-22 1961-09-05 Gen Electric Electric control unit
US3027538A (en) * 1958-01-20 1962-03-27 Siemens Edison Swan Ltd Electrical plug-in type contact pins
US3020513A (en) * 1958-02-03 1962-02-06 Whitney Blake Co Tamper proof electrical connector
US3007129A (en) * 1958-03-21 1961-10-31 Square D Co Gang connector for terminal boards
US3097033A (en) * 1959-02-09 1963-07-09 Microdot Inc Universal electric connector
US3274532A (en) * 1959-02-18 1966-09-20 United Carr Inc Connector for printed wire board
US3009130A (en) * 1959-03-23 1961-11-14 Amp Inc Pin-socket connector
US3069652A (en) * 1959-03-23 1962-12-18 Burndy Corp Electrical connector for printed circuit boards
US3088091A (en) * 1959-05-06 1963-04-30 R L Linn Corp Electrical terminal block connection and terminal members therefor
US3085220A (en) * 1959-06-29 1963-04-09 Amp Inc Electrical pin board
US3078437A (en) * 1959-07-10 1963-02-19 Westinghouse Electric Corp Wiring device
US3141717A (en) * 1959-08-03 1964-07-21 Malco Mfg Co Electrical socket
US3012159A (en) * 1959-08-31 1961-12-05 Gen Electric Terminal arrangement for electrical apparatus
US3233209A (en) * 1960-12-01 1966-02-01 Burndy Corp Electrical terminal block assembly
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GB700999A (en) 1953-12-16

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