US3444504A - Electrical connector having stabilizing means and free-floating contact section - Google Patents

Electrical connector having stabilizing means and free-floating contact section Download PDF

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Publication number
US3444504A
US3444504A US610315A US3444504DA US3444504A US 3444504 A US3444504 A US 3444504A US 610315 A US610315 A US 610315A US 3444504D A US3444504D A US 3444504DA US 3444504 A US3444504 A US 3444504A
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US
United States
Prior art keywords
section
contact
electrical
contact section
passageway
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
US610315A
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English (en)
Inventor
James Edward Lynch
Dexter Wyman Erline
Ronald Charles Morehart
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.)
TE Connectivity Corp
Original Assignee
AMP Inc
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Filing date
Publication date
Application filed by AMP Inc filed Critical AMP Inc
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Publication of US3444504A publication Critical patent/US3444504A/en
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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
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/02—Contact members
    • H01R13/28—Contacts for sliding cooperation with identically-shaped contact, e.g. for hermaphroditic coupling devices
    • 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
    • H01R13/405—Securing in non-demountable manner, e.g. moulding, riveting
    • H01R13/415—Securing in non-demountable manner, e.g. moulding, riveting by permanent deformation of contact member

Definitions

  • An electrical connector comprises a contact section and a securing section disposed in a passageway of a dielectric housing with the securing section and the passageway including means to secure the connector in position and ear means engageable with surfaces of the passageway to permit freedom of movement of the contact section for mateable alignment with another electrical connector.
  • This invention relates to electrical connectors and more particularly to electrical connectors having stabilizing means and free-floating contact sections.
  • Electrical connectors have also been secured in passageways of a housing to the extent that they are stabilized therein so that the posts are maintained in alignment to receive electrical connections applied by automatic wiring machinery, but no provision is provided to permit the contact sections of the electrical connectors to be free floating so that the contact sections can properly mate with misaligned mateable electrical connectors.
  • An object of the invention is to provide an electrical connector ithat is stabilized in a passageway of a housing and has a free-floating contact section to mate wit-h a misaligned contact section of a mateable electrical connector.
  • Another object of the invention is the provision of an electrical connector that has stabilizing arms adjacent the contact section to stabilize the electrical connector in a passageway of a housing.
  • a further object of the invention is to provide tapered surfaces in a passageway of a housing against which stabilizing means of an electrical connector resiliently engage.
  • An additional object of the invention is the provision of securely positioning an electrical connector in a passageway of a housing so that a post section can be terminated properly.
  • an electrical connector comprising, in combination, a dielectric housing and an electrical contact member, the dielectric housing having a passageway extending therethrough with opposing tapered surfaces, the contact member having a contact section, a securing section and a conductor-receiving section, stabilizing members extending outwardly from the contact member adjacent the securing section and in engagement with the opposing tapered surfaces, a reduced section between the contact section and the securing section to permit the contact section to be movable relative to the securing section in a free-floating manner to mate with a misaligned complementary electrical contact, and means on the securing section and in the passageway securing at least the contact section and the securing section of the electrical contact in the passageway and maintain the stabilizing members resiliently against the opposing tapered surfaces thereby stabilizing the conductor-receiving section in a substantially fixed position.
  • FIGURE 1 is an exploded perspective cross sectional view of a housing member and an electrical terminal
  • FIGURES 2 through 4 illustrate the positioning of the electrical terminal within a passageway of the hous- 111g
  • FIGURE 5 is a view taken along lines 55 of FIG- URE 4;
  • FIGURE 6 is a view simiilar to FIGURE 5 with the electrical terminals in electrical engagement;
  • FIGURE 7 is a view taken along lines 7-7 of FIG- URE 6;
  • FIGURE 8 is a view taken along lines 88 of FIG- URE 5.
  • housing H which is conventionally molded from any suitable dielectric material.
  • Housing H illustrates a single passageway P but it is to be understood that housing H can have one or more passageways.
  • An electrical terminal ET fits in passageway P.
  • Passageway P has a cross-shaped section defining opposing slots.
  • One of the slots has tapered surfaces 1 which taper toward the longitudinal axis of the passageway from the entrance of the passageway to an inner receiving section 2.
  • the same slot also has other tapered surfaces 3 which taper inwardly from the entrance of the passageway to a point about midway of inner receiving section 2.
  • Opposed recesses 4 are located in section 2 and these recesses in section 2 communicate with arcuate sectionsS.
  • Inner surfaces 6 are located at the junctions of recesses 4 and sections 5 and stop surfaces 7 extend inwardly from the end of housing H to inner surfaces 6. Stop surfaces 7 are disposed on opposite sides of a plane passing through the longitudinal axis of passageway P and in spaced relationship thereto as well as extending parallel therewith.
  • Electrical terminal ET is similar in construction to the electrical terminal disclosed in US. patent application, Ser. No. 534,744, filed Mar. 16, 1966 and it comprises a contact section 8, a securing section 9 and a conductorengaging section 10.
  • the electrical. terminal is susceptible to mass production by automatic machinery and is conveniently formed by shaping a sheet metal blank or strip of a suitable electrically conductive metal such as brass,
  • the metal is sufiiciently hard and resilient to impart to the connection area a spring-like character.
  • Contact section 8 includes fork members 11 having beveled surfaces 12 at the free ends thereof which act as guide means to guide contact section 8 into mating engagement with the contact section of a like electrical terminal ETa as illustrated in FIGURES 4 through 6.
  • contact section 8 can mate with other fork-type electrical terminals such as that disclosed in US. Patent No. 2,828,- 474 or the like as well as with blades of the type disclosed in US. Patent No. 3,215,975.
  • Electrical terminals ETa are generally mounted on a printed circuit board or a mounting member; however, housing H and electrical terminals ET could be mounted on a printed circuit board in the manner of US. Patent No. 3,215,975.
  • the electrical connector of the present invention is therefore susceptible to numerous uses that need not be described.
  • Channels 13 are formed in beveled surfaces 12 so that at the initial points of contact between contact section 8 and a complementary contact section of another electrical terminal less contact area is provided which therefore defines wear points that will lend long life to the electrical terminal.
  • the wear point concept is an important feature of the invention when the electrical terminal or the contact section thereof is plated with precious metals.
  • each fork member 11 is provided with a contact surface 14 which is generally parallel with the longitudinal axis of the contact section and a generally arcuate surface 15 which merges into a radiused inner end 16,Which is part of bridge 17 connecting fork members 11 together.
  • Each fork member from beveled surfaces 12 to inner end 16 defines a generally sinusoidal configuration.
  • U-shaped contact channels 18 are disposed in each side of bridge 17 and the outer ends of contact channels 18 form inner end 16.
  • the walls of contact channels 18 are beveled and, as can be discerned from FIGURES and 6, channels 18 from inner end 16 to about one-third the depth thereof are beveled to facilitate the movement of the outer contact surfaces of electrical terminal ETa along contact channels 18.
  • Contact section 8 of electrical terminal ET therefore defines outer and inner contactengaging areas when electrically mating with contact sections of the same configuration or similar thereto such as the type disclosed in US. Patent No. 2,828,474 or the like.
  • Contact section 8 is connected to securing section 9 via blade section 19.
  • Securing section 9 includes ears 20 extending outwardly from each side of a reduced section 21 adjacent blade section 19. Lugs 22 extend outwardly from each side of reduced section 21. Bars 20 have radiused surfaces 23 which merge into tapered surfaces 24 which in turn merge into tapered surfaces 25. Ears 20 are bent outwardly from the plane containing blade section 19 as illustrated in FIG- URE 5.
  • Conductor-engaging section preferably takes the form as illustrated in the drawings whereby a connection can be made thereto by means of a connector disclosed in US. Patent No. 3,239,918 by connecting a wire thereto, by means of conventional wire-wrapping techniques, by welding a wire thereto or by soldering a wire thereto.
  • Conductor-engaging section 10 can take any other suitable form to terminate a conductive member thereto as desired.
  • electrical terminal ET is inserted into passageway P of housing H with conductor-engaging section 10 being threaded into passageway P until the inner surfaces of cars 20 which are adjacent tapered surfaces 25 are brought against surfaces 26 whereupon conductor-engaging section 10 is rotated 90 with respect to contact section 8 causing reduced section 21 to be twisted as illustrated in FIGURES 4 through 7 thereby securing the electrical terminal within the passageway.
  • Conductor-engaging section 10 is twisted until lugs 22 engage inner surfaces 6 to secure the electrical terminal in position and stop surfaces 7 to assure the correct angular disposition of conductor-engaging section 10 with respect to the rear surface of housing H so that conductor-engaging section 10 will be properly aligned to receive terminations applied by automatic terminating equipment.
  • the inner ends of lugs 22 are preferably radiused so that scoring of the edges of inner surfaces 6 is minimized. Also, the twist that occurs in reduced section 21 and the position of lugs 22 with respect to stop surfaces 7 stabilize conductor-engaging section 10 in an aligned position for termination by automatic terminating equipment.
  • ears 20 as the electrical terminal is being threaded into passageway P is according to the following: Tapered surfaces 24 engage tapered surfaces 3 of the passageway and tapered surfaces 24 move along tapered surfaces 3 as the electrical terminal is being moved into the passageway causing cars 20 to be moved inwardly toward the longitudinal axis of the passageway.
  • cars 20 are resiliently biased against surfaces 3 thereby aiding in the stabilization of conductorengaging section 10 and blade section 19 permits contact section 8 to be free floating so that it can move relative to tapered surfaces 1 and 3 thereby permitting contact section 8 to effectively mate with a misaligned electrical terminal without damage thereto or therebetween.
  • contact section 8 Since cars 20 extend outwardly from blade section 19, contact section 8 is biased towards a tapered surface 1 as illustrated in FIGURE 5, but in view of the free floating concept of the contact section provided by blade section 19, contact section 8 is readily alignable with mating contact section of another electrical terminal.
  • An electrical connector comprising, in combination, a dielectric housing and an electrical contact member, the dielectric housing having a passageway extending therethrough, said passageway having opposing tapered surfaces, the contact member having a contact section, a securing section and a conductor-receiving section disposed in said passageway, stabilizing members extending outwardly from the contact member adjacent the securing section and in engagement with the opposing tapered surfaces, a blade section between the contact section and the securing section to permit the contact section to be movable relative to the securing section in a free-floating manner to mate with a misaligned complementary electrical contact, and means on the securing section and in the passageway securing at least the contact section and the securing section of the electrical contact in the passageway and maintaining the stabilizing members resiliently against the opposing tapered surfaces thereby stabilizing the conductor-receiving section in a substantially fixed position.
  • An electrical terminal comprising a contact section, an intermediate section and a conductor-engaging section, a blade section connecting said contact section to said intermediate section, unitary resilient ear means extending outwardly from said intermediate section adjacent said blade section and toward an insertion end of said contact section for engagement with surfaces of a housing passageway to stabilize the electrical terminal therein, said blade section having a fiexural strength weaker than said contact section thereby permitting said contact section to be free floating relative to said intermediate section thereby permitting said contact section to mate with a misaligned complementary contact section.
  • said contact section includes fork members provided with beveled surfaces at free ends thereof with channels disposed in the beveled surfaces.
  • said contact section includes fork members and a bridge section at the inner ends thereof, said bridge section having channels with the outer ends of said channels having beveled surfaces.
  • An elecrical connector comprising, in combination, a dielectric mounting member and an electrical terminal; said mounting member having an opening provided with a first section and a second section, said first section communicating with opposed tapered surfaces, said second section having locking surfaces and stop surfaces, said stop surfaces being disposed on opposite sides of a plane extending through a longitudinal axis of said opening; said electrical terminal including a contact section, a securing section, a conductor-engaging section and resilient ear means, said electrical terminal being disposed in said opening with said securing section being located in said sections and said ear means being disposed against sad tapered surfaces, said ear means in engagement with said tapered surfaces limiting movement of said electrical terminal in said opening in one direction, said conductorengaging section being twisted with respect to said contact section so that a portion of said securing section is disposed in said first section and another portion of said securing section is disposed in said second section adjacent said locking surfaces and said stop surfaces thereby limiting movement of said electrical terminal in said opening in a direction opposite to the first-
  • an insulating housing having a preformed passageway extending therethrough, an electrical contact inserted in said passageway, said housing and contact being arranged for relative movement along an axis into engagement with a mating connector, said contact including a contact section, a securing section, and a conductor-receiving section, said contact section having spring elements resiliently flexible towards and away from each other laterally of said axis to engage a complementary contact in the mating connector, said securing section coacting with said housing to provide a rigidly fixed base for said contact section and conductor-receiving section, resilient ear means provided by said securing section and in engagement with surfaces of said passageway thereby stabilizing said conductorreceiving section, and a blade section intermediate said contact section and said securing section and having a flexural strength substantially less than each of said spring elements to give said contact section a free-floating action with respect to the complementary contact.
  • An electrical terminal comprising a contact section, an intermediate section and a conductor-engaging section, a blade section connecting said contact section to said intermediate section, said contact section including fork members having opposing surfaces defining contactengaging surfaces, unitary resilient ear means extending outwardly from said intermediate section adjacent said blade section for engagement with surfaces of a housing passageway to stabilize the electrical terminal therein, said blade section having a flexural strength weaker than either of said fork members thereby permitting said contact section to be free floating relative to said intermediate section thereby permitting said contact section to mate with a misaligned complementary contact section.

Landscapes

  • Multi-Conductor Connections (AREA)
  • Connector Housings Or Holding Contact Members (AREA)
  • Connections By Means Of Piercing Elements, Nuts, Or Screws (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)
US610315A 1967-01-19 1967-01-19 Electrical connector having stabilizing means and free-floating contact section Expired - Lifetime US3444504A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US61031567A 1967-01-19 1967-01-19

Publications (1)

Publication Number Publication Date
US3444504A true US3444504A (en) 1969-05-13

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Family Applications (1)

Application Number Title Priority Date Filing Date
US610315A Expired - Lifetime US3444504A (en) 1967-01-19 1967-01-19 Electrical connector having stabilizing means and free-floating contact section

Country Status (7)

Country Link
US (1) US3444504A (ro)
BE (1) BE709343A (ro)
DE (1) DE1615671A1 (ro)
ES (1) ES349094A1 (ro)
FR (1) FR1549983A (ro)
GB (1) GB1150186A (ro)
NL (1) NL6800270A (ro)

Cited By (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3838382A (en) * 1973-07-13 1974-09-24 Itt Retention system for electrical contacts
US4017143A (en) * 1975-12-16 1977-04-12 Litton Systems, Inc. Solderless electrical contact
JPS5223072B1 (ro) * 1971-03-22 1977-06-22
US4183610A (en) * 1977-01-13 1980-01-15 Trw Inc. Electrical connection apparatus
US4184735A (en) * 1978-05-22 1980-01-22 Elfab Corporation Discrete connector
US4230384A (en) * 1979-03-05 1980-10-28 International Telephone And Telegraph Corporation Electrical contact
US4275944A (en) * 1979-07-09 1981-06-30 Sochor Jerzy R Miniature connector receptacles employing contacts with bowed tines and parallel mounting arms
US4371228A (en) * 1978-09-27 1983-02-01 Chalmers Walter M Electric connector
US4453792A (en) * 1982-09-20 1984-06-12 Amp Incorporated High current drawer connector
US4464007A (en) * 1982-05-25 1984-08-07 Amp Incorporated Pin terminal mounting system
US4691979A (en) * 1983-08-04 1987-09-08 Manda R & D Compliant press-fit electrical contact
US4787864A (en) * 1987-03-25 1988-11-29 Amp Incorporated Terminal stabilization and retention system for an electrical connector
US4966557A (en) * 1987-12-04 1990-10-30 Amp Incorporated Electrical contact element
US5158470A (en) * 1991-05-23 1992-10-27 Amp Incorporated Solderless system for retention and connection of a contact with a plastic circuit element
US5374204A (en) * 1993-11-30 1994-12-20 The Whitake Corporation Electrical terminal with compliant pin section
DE19706943A1 (de) * 1997-02-20 1998-08-27 Kostal Leopold Gmbh & Co Kg Elektrisches Steckkontaktteil
US5882230A (en) * 1995-04-21 1999-03-16 Itt Composants Et Instruments Card connector with stabile contacts
US6511330B1 (en) 2001-08-24 2003-01-28 Adc Telecommunications, Inc. Interconnect module
US6616459B2 (en) 2001-08-24 2003-09-09 Adc Telecommunications, Inc. Card edge contact including compliant end
US6830465B2 (en) 2001-08-24 2004-12-14 Adc Telecommunications, Inc. Interconnect chassis and module
US20080009162A1 (en) * 2006-07-07 2008-01-10 Hon Hai Precision Ind. Co., Ltd. Electrical termial
US8162683B2 (en) 2010-05-13 2012-04-24 Advanced Bionics, Llc Miniature electrical connectors
US20160020544A1 (en) * 2014-07-16 2016-01-21 Yazaki Corporation Connector
US9742113B1 (en) 2017-01-06 2017-08-22 Harris Corporation Electrical interface
US9877404B1 (en) * 2017-01-27 2018-01-23 Ironwood Electronics, Inc. Adapter apparatus with socket contacts held in openings by holding structures

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3510846C2 (de) * 1985-03-26 1994-06-23 Gossen Gmbh Flachsteckerverbindung
US5145383A (en) * 1991-07-26 1992-09-08 Molex Incorporated Male electrical contact and connector embodying same

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2755450A (en) * 1949-12-01 1956-07-17 British Insulated Callenders Multiple-pin plug and socket couplings
US3059216A (en) * 1958-11-13 1962-10-16 Cons Electrodynamies Corp Electrical connector
US3086074A (en) * 1961-02-13 1963-04-16 Malco Mfg Co Self-orientating terminal connectors
GB1001221A (en) * 1963-01-02 1965-08-11 Pressac Ltd Connector for printed circuit boards
FR1408761A (fr) * 1964-06-26 1965-08-20 Souriau & Cie Perfectionnements apportés aux connecteurs, notamment pour circuits imprimés

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2755450A (en) * 1949-12-01 1956-07-17 British Insulated Callenders Multiple-pin plug and socket couplings
US3059216A (en) * 1958-11-13 1962-10-16 Cons Electrodynamies Corp Electrical connector
US3086074A (en) * 1961-02-13 1963-04-16 Malco Mfg Co Self-orientating terminal connectors
GB1001221A (en) * 1963-01-02 1965-08-11 Pressac Ltd Connector for printed circuit boards
FR1408761A (fr) * 1964-06-26 1965-08-20 Souriau & Cie Perfectionnements apportés aux connecteurs, notamment pour circuits imprimés

Cited By (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5223072B1 (ro) * 1971-03-22 1977-06-22
US3838382A (en) * 1973-07-13 1974-09-24 Itt Retention system for electrical contacts
US4017143A (en) * 1975-12-16 1977-04-12 Litton Systems, Inc. Solderless electrical contact
US4183610A (en) * 1977-01-13 1980-01-15 Trw Inc. Electrical connection apparatus
US4184735A (en) * 1978-05-22 1980-01-22 Elfab Corporation Discrete connector
US4371228A (en) * 1978-09-27 1983-02-01 Chalmers Walter M Electric connector
US4230384A (en) * 1979-03-05 1980-10-28 International Telephone And Telegraph Corporation Electrical contact
US4275944A (en) * 1979-07-09 1981-06-30 Sochor Jerzy R Miniature connector receptacles employing contacts with bowed tines and parallel mounting arms
US4464007A (en) * 1982-05-25 1984-08-07 Amp Incorporated Pin terminal mounting system
US4453792A (en) * 1982-09-20 1984-06-12 Amp Incorporated High current drawer connector
US4691979A (en) * 1983-08-04 1987-09-08 Manda R & D Compliant press-fit electrical contact
US4787864A (en) * 1987-03-25 1988-11-29 Amp Incorporated Terminal stabilization and retention system for an electrical connector
US4966557A (en) * 1987-12-04 1990-10-30 Amp Incorporated Electrical contact element
US5158470A (en) * 1991-05-23 1992-10-27 Amp Incorporated Solderless system for retention and connection of a contact with a plastic circuit element
US5374204A (en) * 1993-11-30 1994-12-20 The Whitake Corporation Electrical terminal with compliant pin section
US5452512A (en) * 1993-11-30 1995-09-26 The Whitaker Corporation Method of making an electrical terminal
US5882230A (en) * 1995-04-21 1999-03-16 Itt Composants Et Instruments Card connector with stabile contacts
DE19706943A1 (de) * 1997-02-20 1998-08-27 Kostal Leopold Gmbh & Co Kg Elektrisches Steckkontaktteil
DE19706943C2 (de) * 1997-02-20 2000-04-20 Kostal Leopold Gmbh & Co Kg Elektrisches Steckkontaktteil
US6511330B1 (en) 2001-08-24 2003-01-28 Adc Telecommunications, Inc. Interconnect module
US6616459B2 (en) 2001-08-24 2003-09-09 Adc Telecommunications, Inc. Card edge contact including compliant end
US20040038597A1 (en) * 2001-08-24 2004-02-26 Adc Telecommunications, Inc. Card edge contact including compliant end
US6830465B2 (en) 2001-08-24 2004-12-14 Adc Telecommunications, Inc. Interconnect chassis and module
US6848952B2 (en) 2001-08-24 2005-02-01 Adc Telecommunications, Inc. Card edge contact including compliant end
US6890187B2 (en) 2001-08-24 2005-05-10 Adc Telecommunications, Inc. Interconnect module
US20080009162A1 (en) * 2006-07-07 2008-01-10 Hon Hai Precision Ind. Co., Ltd. Electrical termial
US7604517B2 (en) * 2006-07-07 2009-10-20 Hon Hai Precision Ind. Co., Ltd. Electrical terminal
US8162683B2 (en) 2010-05-13 2012-04-24 Advanced Bionics, Llc Miniature electrical connectors
US20160020544A1 (en) * 2014-07-16 2016-01-21 Yazaki Corporation Connector
US9515407B2 (en) * 2014-07-16 2016-12-06 Yazaki Corporation Electrical connector with press-fitted rectangular wire terminal
US9742113B1 (en) 2017-01-06 2017-08-22 Harris Corporation Electrical interface
US9877404B1 (en) * 2017-01-27 2018-01-23 Ironwood Electronics, Inc. Adapter apparatus with socket contacts held in openings by holding structures

Also Published As

Publication number Publication date
FR1549983A (ro) 1968-12-13
ES349094A1 (es) 1969-04-01
GB1150186A (en) 1969-04-30
DE1615671A1 (de) 1970-06-18
BE709343A (ro) 1968-05-16
NL6800270A (ro) 1968-07-22

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