US3233203A - Keyed dead front electrical connector and cap - Google Patents

Keyed dead front electrical connector and cap Download PDF

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Publication number
US3233203A
US3233203A US411831A US41183164A US3233203A US 3233203 A US3233203 A US 3233203A US 411831 A US411831 A US 411831A US 41183164 A US41183164 A US 41183164A US 3233203 A US3233203 A US 3233203A
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US
United States
Prior art keywords
connector
chamber
cap
keying
closure means
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
US411831A
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English (en)
Inventor
James A Kennedy
William A Sunter
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.)
Harvey Hubbell Inc
Original Assignee
Harvey Hubbell Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to GB1050907D priority Critical patent/GB1050907A/en
Application filed by Harvey Hubbell Inc filed Critical Harvey Hubbell Inc
Priority to US411831A priority patent/US3233203A/en
Application granted granted Critical
Publication of US3233203A publication Critical patent/US3233203A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • H01R13/44—Means for preventing access to live contacts
    • H01R13/447—Shutter or cover plate
    • H01R13/453—Shutter or cover plate opened by engagement of counterpart
    • H01R13/4532—Rotating shutter
    • 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

Definitions

  • the cap Upon full insertion, the cap may be rotated relative to the connector body so as to cause the two to interlock.
  • One advantage of a construction of this type is that the cross-sectional configuration of the opening and the key member may be varied to suit different voltages and different load con- Accordingly it would be impossible to insert a cap into a connector having a different rating as the key would not be insertable into the opening.
  • the cap portion includes a plurality ,Wall, of the connector.
  • FIG. 1 is an illustration of a connector and cap aligned to be interconnected with one another, portions thereof being broken away to illustrate the internal construction
  • FIG. 2 is a right end view of the connector shown in FIG. 1;
  • FIG. 3 is a left end view of the cap shown in FIG. 1;
  • FIG. 4 is a cross section taken along the line 44 of FIG. 2 but showing the cap inserted in the connector
  • FIG. 5 is a cross section taken along the line 5-5 of FIG. 4.
  • a connector of the dead front type having a keying pin positioned therein and extending through the usual plunger.
  • the cap includes an insert defining an opening for receiving the end of the keying pin.
  • the connector R includes a cylindrical body 10 of insulating material defining therein the usual recesses 12 for containing the electrical contacts 14.
  • the body also defines a central chamber 16 communicating with the recesses 12 and extending from the front axially toward the rear.
  • the connector R includes clamp-type terminals 18 for wiring the individual conductors of an electrical cord 20.
  • the body 10 is enclosed within a metallic shell 22.
  • a plunger 24 of insulating material is positioned to slide within the central chamber 16 longitudinally of the axis of the connector R. At its outermost position, the plunger 24 substantially closes the end of the connector so as to provide the desired dead front feature.
  • a coil spring 26 is mounted in the connector body to bias the plunger outwardly and serves to keep the plunger in the closed position when the connector is not connected to a cap.
  • a metal insert 28, knurled on its outer surface, is force fitted into a corresponding recess 30 provided in a diametral inner surface of the back of the central chamber 16.
  • the insert 28 is generally cylindrical and supports a keying pin 32 therein. Keying pin 32 extends along the axis of the central bore 16 and through a circular opening 34 in plunger 24 to a point just beyond the diametral front
  • the major portion of the length of keying pin 32 is shaped to a selectively predetermined desired cross section. In the illustrated embodiment, this cross section is triangular.
  • the inner end 33 of the keying pin 32 is cylindrical and fits within the central opening of the metal insert 28.
  • a washer 36 abuts against the triangular shaped portion and positions the pin 32 rela-
  • the end of the pin 32 is then riveted over the end of the insert, as at 38, so as to secure it in position.
  • the pin 32 is not riveted tightly enough to the insert 28 to prevent its rotation, but is secured tightly enough to maintain the axial alignment of the triangular shape-d portion of the pin with the central chamber 16.
  • cap C is similar to the construction of the cap illustrated in Patent No. 2,102,625 referred to above. It includes a cylindrical body 40 of insulating material enclosed within a metallic shell 42. A central post 44 extends axially outwardly of the body 40 and carries on its outer peripheral surface electrical contacts 46 arranged to mate with the contacts 14 within the connector body 10.
  • the post 44 of this invention is provided with a central opening within which is fixedly secured an insert 48 of a suitable plastic material, such as nylon.
  • the insert 48 defines a central opening 50 which is shaped to receive the keying pin 32 of a connector.
  • the keying pin 32 enters the opening St ⁇ in the end of post insert 48.
  • the cap C is then rotated in the usual fashion to effect the interlocking connection between it and the connector.
  • the keying pin 32 rotates with the insert 48 as the insert turns to permit such interlocking. Removal is effected by rotatingthe cap in the opposite direction and withdrawing it from the connector.
  • An electrical connector assembly which'comprises: a connector having a body of insulating material; said connector body including a front surface and defining a chamber therein communicating with said front surface; first electrical contact means positioned within said chamber; closure means slidably retained in said chamber for movement bet-ween a first position adjacent said front surface and a second position within said chamber; said closure means defining an opening therethrough; means within said chamber positioned to bias said closure means toward and into said first position; keying pin means rotatably mounted in said connector body and extending centrally through said chamber and the opening in said closure means to a point outwardly of said closure means, the free end of said keying pin means having a non-circular cross-section; a cap having a body of insulating material; said cap including a central post arranged to selectively enter said chamber in said connector by engaging and moving said closure means against its bias; said post member defining an opening therethrough having a I non-circular cross sectional shape conforming to that of the pin means to closely but slid
  • said keying pin means includes a cylindrical end rotatably retained in said insert.
  • An electrical connector which comprises: a body of insulating material including a front surface and defining a chamber therein communicating with said front surface; a plurality of electrical contact means positioned within said chamber; means for electrically connecting said contact means to electrical conductor means; closure means slidably retained in said chamber for movement between a first position adjacent said front surface and a second position within said chamber; said closure means defining an opening therethrough; means within said chamber positioned to bias said closure means into said first position; and keying pin means rotatably mounted in said connector and extending through said chamber and the opening in said closure means to a point outwardly of said closure means; said keying pin means having a noncircular cross section along at least a portion of its length.
  • An electrical connector which comprises: a body of insulating material including a front surface, a chamber communicating with said front surface, and a tubular insert in said chamber; a plurality of electrical contact means positioned within said chamber; means for electrically connecting said contact means to electricalconductor means; closure means slidably retained in said chamber for movement between a first positionadja-cent said front surface and a second position withinsaid chamber; said closure means defining anopening therethrough; means within said chamber positioned to bias said closure means into said first position; and keying pin means mounted in said connector including a cylindrical end rotatably retained in said insert and extending through said chamber and the opening in said closure means to a point outwardly of said closure means, said keying pin means having a non-circular cross-section along at least aportion of its length.
  • An electrical connector which comprises: a body of insulating material-including a front surface, a chamber communicating with said front surface, and a tubular insert in said chamber; a plurality of electricalcontact means positioned within said chamber; means for electrically connecting said contact means to electrical conductor means; closure means slidably retained in said chamber for movement between a first position adjacent said front surface and a second position within said chamber; said closure means defining an opening therethrough; keying pin means mounted in said connector including a cylindrical end rotatablyretained in said insert and extendingthrough said chamber and the opening in said closure means to a point outwardly of said closure means, said keying pin means having a non-cir cular cross-section along at least a portion of its length; and a coil spring within said chamber substantially encircling said keying pin means and positioned to bias said closure'means into said first position.

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  • Connector Housings Or Holding Contact Members (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)
US411831A 1964-11-17 1964-11-17 Keyed dead front electrical connector and cap Expired - Lifetime US3233203A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB1050907D GB1050907A (enrdf_load_stackoverflow) 1964-11-17
US411831A US3233203A (en) 1964-11-17 1964-11-17 Keyed dead front electrical connector and cap

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US411831A US3233203A (en) 1964-11-17 1964-11-17 Keyed dead front electrical connector and cap

Publications (1)

Publication Number Publication Date
US3233203A true US3233203A (en) 1966-02-01

Family

ID=23630508

Family Applications (1)

Application Number Title Priority Date Filing Date
US411831A Expired - Lifetime US3233203A (en) 1964-11-17 1964-11-17 Keyed dead front electrical connector and cap

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US (1) US3233203A (enrdf_load_stackoverflow)
GB (1) GB1050907A (enrdf_load_stackoverflow)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3339171A (en) * 1965-04-08 1967-08-29 Hubbell Inc Harvey Interlocking electrical connectors and plugs having improved keying means
US3392362A (en) * 1966-05-04 1968-07-09 Hubbell Inc Harvey Electrical connector
US3524072A (en) * 1967-11-03 1970-08-11 Ram Tool Corp Electrical socket for selectively supplying different voltages
US3539971A (en) * 1968-04-04 1970-11-10 Ronald P Bridges Electrical connect-disconnect device
US4255007A (en) * 1978-05-12 1981-03-10 Trw Inc. Multi-terminal rotary connector
FR2545284A1 (fr) * 1983-04-26 1984-11-02 Dokouroff Gerard Prise electrique de securite
US6072161A (en) * 1996-08-06 2000-06-06 Stein; Todd Anthony Beverage container
US20090023315A1 (en) * 2005-02-23 2009-01-22 Magcode Ag Connection system, in particular electrical connection system
US20110165787A1 (en) * 2005-02-23 2011-07-07 Klaus Pfeiffer Connection apparatus
FR3022084A1 (fr) * 2014-06-10 2015-12-11 Raymond A & Cie Connecteur electrique pour un attelage de remorque
WO2021216097A1 (en) * 2020-04-24 2021-10-28 Deere & Company Electrical connector

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3624875A1 (de) * 1986-07-23 1988-01-28 Brufield Investments Ltd Stecker- und dosenkombination fuer den anschluss elektrischer lampen und geraete

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1593985A (en) * 1923-02-08 1926-07-27 Elek Citets Et Francis Sonnich Socket and plug connection for electric circuits
US2102625A (en) * 1935-03-20 1937-12-21 Jr Harvey Hubbell Interlocking receptacle, connecter, and cap
US2986612A (en) * 1959-04-06 1961-05-30 Hubbell Inc Harvey Electrical connectors for industrial uses
US3023394A (en) * 1958-03-17 1962-02-27 Hubbell Inc Harvey Multi-wire connector and plug with selective central key means for different voltages
US3120985A (en) * 1961-04-19 1964-02-11 Hubbell Inc Harvey Electrical connector having selective key means for different voltages

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1593985A (en) * 1923-02-08 1926-07-27 Elek Citets Et Francis Sonnich Socket and plug connection for electric circuits
US2102625A (en) * 1935-03-20 1937-12-21 Jr Harvey Hubbell Interlocking receptacle, connecter, and cap
US3023394A (en) * 1958-03-17 1962-02-27 Hubbell Inc Harvey Multi-wire connector and plug with selective central key means for different voltages
US2986612A (en) * 1959-04-06 1961-05-30 Hubbell Inc Harvey Electrical connectors for industrial uses
US3120985A (en) * 1961-04-19 1964-02-11 Hubbell Inc Harvey Electrical connector having selective key means for different voltages

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3339171A (en) * 1965-04-08 1967-08-29 Hubbell Inc Harvey Interlocking electrical connectors and plugs having improved keying means
US3392362A (en) * 1966-05-04 1968-07-09 Hubbell Inc Harvey Electrical connector
US3524072A (en) * 1967-11-03 1970-08-11 Ram Tool Corp Electrical socket for selectively supplying different voltages
US3539971A (en) * 1968-04-04 1970-11-10 Ronald P Bridges Electrical connect-disconnect device
US4255007A (en) * 1978-05-12 1981-03-10 Trw Inc. Multi-terminal rotary connector
FR2545284A1 (fr) * 1983-04-26 1984-11-02 Dokouroff Gerard Prise electrique de securite
US6072161A (en) * 1996-08-06 2000-06-06 Stein; Todd Anthony Beverage container
US20090023315A1 (en) * 2005-02-23 2009-01-22 Magcode Ag Connection system, in particular electrical connection system
US7866992B2 (en) * 2005-02-23 2011-01-11 Magcode Ag Connection system, in particular electrical connection system
US20110028020A1 (en) * 2005-02-23 2011-02-03 Magcode Ag Connection system, in particular electrical connection system
US20110165787A1 (en) * 2005-02-23 2011-07-07 Klaus Pfeiffer Connection apparatus
US8079855B2 (en) 2005-02-23 2011-12-20 Magcode Ag Connection apparatus
US8267710B2 (en) 2005-02-23 2012-09-18 Rosenberger Hochfrequenztechnik Gmbh & Co. Kg Connection apparatus
FR3022084A1 (fr) * 2014-06-10 2015-12-11 Raymond A & Cie Connecteur electrique pour un attelage de remorque
WO2015189509A1 (fr) 2014-06-10 2015-12-17 A Raymond Et Cie Connecteur electrique pour un attelage de remorque
CN105281079A (zh) * 2014-06-10 2016-01-27 A·雷蒙德公司 一种电插座和电连接器
WO2021216097A1 (en) * 2020-04-24 2021-10-28 Deere & Company Electrical connector
US11952839B2 (en) 2020-04-24 2024-04-09 Deere & Company Electrical connector

Also Published As

Publication number Publication date
GB1050907A (enrdf_load_stackoverflow) 1900-01-01

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