US3359526A - Connector and insulating sleeve for spark plug or distributor - Google Patents

Connector and insulating sleeve for spark plug or distributor Download PDF

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Publication number
US3359526A
US3359526A US625266A US62526667A US3359526A US 3359526 A US3359526 A US 3359526A US 625266 A US625266 A US 625266A US 62526667 A US62526667 A US 62526667A US 3359526 A US3359526 A US 3359526A
Authority
US
United States
Prior art keywords
connector
spark plug
sleeve
receptacle
distributor
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
US625266A
Other languages
English (en)
Inventor
Bakker Roel
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
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 AMP Inc filed Critical AMP Inc
Application granted granted Critical
Publication of US3359526A publication Critical patent/US3359526A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
    • H01T13/00—Sparking plugs
    • H01T13/02—Details
    • H01T13/06—Covers forming a part of the plug and protecting it against adverse environment
    • 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
    • H01R13/35—Contact members for non-simultaneous co-operation with different types of contact member, e.g. socket co-operating with either round or flat pin
    • 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
    • H01R13/46—Bases; Cases
    • H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
    • H01R13/5205—Sealing means between cable and housing, e.g. grommet

Definitions

  • This invention relates to an insulating sleeve and more particularly to an insulating sleeve for use on a spark plug or a distributor.
  • insulating sleeves for use on spark plugs in order to safeguard the spark plugs from moisture, soot, dust, oil and any other undesirable environment. While these insulating sleeves have proved satisfactory, one important drawback that they possess is that they are not readily adaptable to be used on a spark plug or a distributor because of the difference in dimensions between the spark plug and the female receptacles of the distributor.
  • a primary object of the present invention to provide an insulating sleeve which can readily be used on a spark plug or a female receptacle of a dis tributor.
  • Another object of the present invention is to provide an insulating sleeve which is freely flexible and highly elastic to be readily expanded and contracted along its axis to adapt it to various sizes of standard plugs within the motor block and receptacles on distributors.
  • an insulating sleeve for use on spark plugs and receptacles of distributors.
  • the sleeve has a first sealing ring for gripping a lead to be secured to the connector and a second sealing ring spaced from the first sealing ring axially of the sleeve for gripping either the exterior surface of the receptacle of a distributor or the insulator stem of a spark plug.
  • the sleeve has a collapsible wall portion located between the sealing rings.
  • the collapsible portion may be a wall portion of reduced thickness relative to the remainder of the sleeve wall.
  • the second sealing ring may be an internal radial flange formed integrally with the sleeve.
  • FIGURE 1 is an axial sectional view of a connector having a sleeve thereon according to the invention
  • FIGURE 2 is an axial sectional view of the connector and sleeve shown in FIGURE 1, the connector being shown applied to a female receptacle of a distributor.
  • an electrical connector 1 comprises a receptacle portion 2 which receives exposed center electrode 3' in the insulator stem of a spark plug 3.
  • Connector 1 also has a ferrule portion 4 crimped about an electrical lead 5 and making electrical connection with the electrically-conductive core of lead 5.
  • An insulating sleeve 6, e.g., of nylon or other suitable flexible and elastic insulating material comprises a first sealing ring 7 tightly engaging the insulation of lead 5 and a second sealing ring 8 comprising an internal radial readily-deformable flange formed integrally with sleeve 6, the flange being in sealing engagement with insulating portion 9 of the insulator stem of plug 3.
  • the sleeve has a wall portion 10 which is thin relative to the remainder of the wall of sleeve 6 and is, thus, readily deformable along its axis so as to assume a collapsed position with the above wall section disposed toward or adjacent the lower wall section and the inner surface of wall portion 10 approaching or attaining a folded position in accordance with the size spark plug or receptacle of a distributor that the sleeve is to engage.
  • connector 1 is received in a female receptacle 11 of a distributor cap DC, portion 2 of the connector lying within a sleeve-shaped metal contact element 12 within the distributor receptacle.
  • Sealing ring 8 is in tight sealing engagement with the exterior surface of receptacle 11, and as can be discerned, sealing ring 8 is moved away from the axis of the sleeve due to the difference in external diameter between portion 9 and receptacle 11, portion 10 of the sleeve being in its collapsed position, i.e., the inner surface of wall portion 10 approaches a folded position, to compensate for the reception of connector 1 in receptacle 11.
  • the inside diameter of the wall section above portion 10 is less than that of the wall section below portion 10 and that the thickness of the wall section above portion 10 is slightly less than that of the wall section below portion 10.
  • portion 10 extends from the inside surface of the wall section above portion 10 to the outside surface of the wall section below portion 10 thereby defining a frustum of a cone.
  • An electrical connector assembly for mating with a spark plug stem or a female receptacle of a distributor cap, the assembly comprising an electrical connector arranged resiliently to engage the spark plug stem or to be received in the receptacle to form a connection therewith, a connection section formed integrally with the connector and being connected to the end of an electrical lead, and an insulating sleeve surrounding the connector, the sleeve having a first portion tightly engaging the lead, a second portion in essentially coaxial and spaced relationship with the connection between the oonnection section and electrical lead, a third portion comprising a thin annular flexible sealing ring formed integrally with said third portion, said sealing ring extending inwardly toward an axis of said sleeve and forming an entrance through which said spark plug stem or the distributor receptacle passes, said sealing ring being spaced from an outer end of said connector, and a fourth portion connecting the second and third portions, the fourth portion having a thickness less than that of the second and third portions so that the fourth
  • an insulating sleeve comprising a first section tightly engageable 'With said electrical conductor adjacent said connector thereof, a second section extending outwardly from said first section and along said connector and spaced outwardly therefrom, a third section coaxial with said first and second sections and having a substantially thin inwardly-directed flexible flange integrally formed therewith, said flange forming an entrance through which said insulator element or said receptacle passes, and being axially spaced from an outer end of said connector, and a fourth section connecting said second and third sections, said fourth section having a thickness less than that of said second and third sections so that said fourth section is collapsible thereby permitting said sleeve

Landscapes

  • Spark Plugs (AREA)
  • Insulating Bodies (AREA)
  • Connector Housings Or Holding Contact Members (AREA)
US625266A 1963-09-30 1967-03-22 Connector and insulating sleeve for spark plug or distributor Expired - Lifetime US3359526A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT500063 1963-09-30

Publications (1)

Publication Number Publication Date
US3359526A true US3359526A (en) 1967-12-19

Family

ID=11116845

Family Applications (1)

Application Number Title Priority Date Filing Date
US625266A Expired - Lifetime US3359526A (en) 1963-09-30 1967-03-22 Connector and insulating sleeve for spark plug or distributor

Country Status (3)

Country Link
US (1) US3359526A (enrdf_load_stackoverflow)
JP (1) JPS4314012Y1 (enrdf_load_stackoverflow)
GB (1) GB1008229A (enrdf_load_stackoverflow)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4433889A (en) 1981-12-28 1984-02-28 The Bendix Corporation Electrical connector having a moisture seal
US4681383A (en) * 1986-04-25 1987-07-21 Porta Systems Corp. Resilient sealing device for telephone subscriber terminals
US5127840A (en) * 1991-09-03 1992-07-07 General Motors Corporation Spark plug connector
US5166574A (en) * 1989-07-14 1992-11-24 Yazaki Corporation High-tension cable device
US5332394A (en) * 1993-10-12 1994-07-26 The Bg Service Co., Inc. Electrical connector for connecting a voltage source to a spark plug terminal
US20130337670A1 (en) * 2010-04-14 2013-12-19 John Mezzalingua Associates, LLC Cover for cable connectors

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5326500U (enrdf_load_stackoverflow) * 1976-08-12 1978-03-06
JPS5641356Y2 (enrdf_load_stackoverflow) * 1978-10-25 1981-09-28
GB8325508D0 (en) * 1983-09-23 1983-10-26 Sinclair Res Ltd Connector protection arrangement
EP0288512A4 (en) * 1986-10-17 1989-01-19 Gold Securities Australia Ltd PROTECTIVE SLEEVE FOR SPARK PLUG.
AU624322B2 (en) * 1986-10-17 1992-06-11 Gold Securities Australia Limited Ignition boot
JPH0735235Y2 (ja) * 1989-10-17 1995-08-09 株式会社戸上電機製作所 引出端子用絶縁カバー

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4433889A (en) 1981-12-28 1984-02-28 The Bendix Corporation Electrical connector having a moisture seal
US4681383A (en) * 1986-04-25 1987-07-21 Porta Systems Corp. Resilient sealing device for telephone subscriber terminals
US5166574A (en) * 1989-07-14 1992-11-24 Yazaki Corporation High-tension cable device
US5127840A (en) * 1991-09-03 1992-07-07 General Motors Corporation Spark plug connector
US5332394A (en) * 1993-10-12 1994-07-26 The Bg Service Co., Inc. Electrical connector for connecting a voltage source to a spark plug terminal
US20130337670A1 (en) * 2010-04-14 2013-12-19 John Mezzalingua Associates, LLC Cover for cable connectors

Also Published As

Publication number Publication date
JPS4314012Y1 (enrdf_load_stackoverflow) 1968-06-14
GB1008229A (en) 1965-10-27

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