US3091747A - Disconnect plug for electric device - Google Patents

Disconnect plug for electric device Download PDF

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Publication number
US3091747A
US3091747A US21826A US2182660A US3091747A US 3091747 A US3091747 A US 3091747A US 21826 A US21826 A US 21826A US 2182660 A US2182660 A US 2182660A US 3091747 A US3091747 A US 3091747A
Authority
US
United States
Prior art keywords
plug
end wall
spring
electric device
socket
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
US21826A
Other languages
English (en)
Inventor
Snikkers Jan
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.)
US Philips Corp
North American Philips Co Inc
Original Assignee
US Philips Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by US Philips Corp filed Critical US Philips Corp
Application granted granted Critical
Publication of US3091747A publication Critical patent/US3091747A/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
    • H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
    • H01R13/627—Snap or like fastening

Definitions

  • the invention relates to a plug connection comprising a plug and a receptacle, of which one is provided with at least one spring with extensions, which are located in recesses of the other part when the two parts engage each other, these recesses constituting shoulders for the extensions to ensure that only by the relative approach of the extensions the plug connection can be disengaged.
  • the spring is located on the outer side. Since there is a space between the spring and the further part of the plug or the receptacle, the spring can be compressed to establish the connection or to interrupt it.
  • the plug or the receptacle provided with the spring(s) consists of a body of readily deformable material, for example, rubber or a thermo-plastic synthetic substance, such as polyvinylchloride, in which the spring(s) is (are) embedded while the extensions project from the body.
  • the structure according to the invention provides the advantage of an attractive appearance, while excessive deformation of the spring is practically impossible, since it is embedded in the deformable material. Moreover, the connection of the spring to the body of deformable material is thus very simple and the possibility of the spring being caught somewhere is considerably reduced.
  • the body is provided with cavities. Also, according to this invention if the conductor connected with the plug or the receptacle were pulled with such a force that this conductor would be broken, the plug connection disengages automatically.
  • the spring may be made of one piece with two or more extensions.
  • the invention also relates to two separate springs, provided each with one extension.
  • FIG. 1 is a sectional view of a plug and receptacle according to the invention taken on line I-I, FIG. 3.
  • FIG. 2 is a sectional view taken on the line II-II of FIG. 1.
  • FIG. 2a is a side elevation of the pin socket illustrated in FIGS. 1 and 2.
  • FIG. 3 is a front view (of the plug only) in the direction of the arrows of line III-III FIG. 2.
  • a body 1 of resilient thermo-plastic synthetic substance, is embedded a spring 2, made of one piece of material and having a ring 3 and opposite resilient tags 4. These tags terminate in extensions 5, which project "ice from the body 1.
  • the body 1 is provided with cavities 6, located between the tags 4 and defined by body portions 1b and 1c.
  • the body 1 has furthermore pin sockets 7, which are connected to electric conductors received in opening 8.
  • the spring 2 may be made of metal or of a like characteristic thermoplastic material (oriented polypropylene, polystyrene). In the latter case there is no risk of short-circuiting.
  • An improved disconnect plug for an electric device having a socketed end wall and a recess in said end wall opening into the socket and defining a shoulder surface on the interior side of said end wall, a deformable plug comprising a substantially hollow body of insulating material, said plug having a reduced end portion adapted to be sealingly received within said socket and said end portion terminating in a plug shoulder stop, resilient means normally urged outwardly from the axis of said plug embedded in said body, an extension of said resilient means protruding from said reduced portion remote from said shouldered stop, said extension of said resilient means being receivable in said recess when said plug is properly inserted in said socket whereby said shoulder stop is intimately engaged against the end Wall of said device and the plug is thus sealingly and rigidly operatively secured with said device, pin socket means embedded in said body member centrally thereof, and a pair of longitudinally extending cavities within said body member intermediate said pin socket means and said spring means whereby said body is readily deformable within determined deformation limits.
  • a disconnect plug according to claim 1 wherein said resilient means comprises a member of resilient material having a ring at one end, at least one tag means extending therefrom at an acute angle with the longitudinal axis of said ring, said tag means having a generally U shaped bend adjacent the end thereof remote from said ring and the terminal leg of said U shaped bend having a reverse bend defining an extension.

Landscapes

  • Connector Housings Or Holding Contact Members (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Quick-Acting Or Multi-Walled Pipe Joints (AREA)
US21826A 1959-04-23 1960-04-12 Disconnect plug for electric device Expired - Lifetime US3091747A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL238518 1959-04-23

Publications (1)

Publication Number Publication Date
US3091747A true US3091747A (en) 1963-05-28

Family

ID=19751686

Family Applications (1)

Application Number Title Priority Date Filing Date
US21826A Expired - Lifetime US3091747A (en) 1959-04-23 1960-04-12 Disconnect plug for electric device

Country Status (6)

Country Link
US (1) US3091747A (de)
CH (1) CH385312A (de)
DE (2) DE1839972U (de)
ES (1) ES257499A1 (de)
GB (1) GB945886A (de)
LU (1) LU38533A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3339172A (en) * 1963-06-14 1967-08-29 United Carr Inc Electric lampholder

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19500102C2 (de) * 1995-01-04 1999-09-30 Itt Cannon Gmbh Verriegelungsvorrichtung für einen Steckverbinder

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1739019A (en) * 1924-01-10 1929-12-10 Smith Harold Elno Electric connection
US2170131A (en) * 1938-07-02 1939-08-22 Cornelius W Doremus Shielded telephone plug
US2235020A (en) * 1938-08-13 1941-03-18 David C Jones Electrical connector
US2801399A (en) * 1955-04-01 1957-07-30 Loyal T Dunn Circuit breaker
US2869100A (en) * 1956-11-23 1959-01-13 Mayfair Molded Products Corp Anode connector
US3016511A (en) * 1957-08-05 1962-01-09 Gen Motors Corp Refrigerating apparatus

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1739019A (en) * 1924-01-10 1929-12-10 Smith Harold Elno Electric connection
US2170131A (en) * 1938-07-02 1939-08-22 Cornelius W Doremus Shielded telephone plug
US2235020A (en) * 1938-08-13 1941-03-18 David C Jones Electrical connector
US2801399A (en) * 1955-04-01 1957-07-30 Loyal T Dunn Circuit breaker
US2869100A (en) * 1956-11-23 1959-01-13 Mayfair Molded Products Corp Anode connector
US3016511A (en) * 1957-08-05 1962-01-09 Gen Motors Corp Refrigerating apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3339172A (en) * 1963-06-14 1967-08-29 United Carr Inc Electric lampholder

Also Published As

Publication number Publication date
DE1099611B (de) 1961-02-16
GB945886A (en) 1964-01-08
LU38533A1 (de)
ES257499A1 (es) 1960-11-16
DE1839972U (de) 1961-10-26
CH385312A (de) 1964-12-15

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