US3290639A - Connector - Google Patents

Connector Download PDF

Info

Publication number
US3290639A
US3290639A US48298865A US3290639A US 3290639 A US3290639 A US 3290639A US 48298865 A US48298865 A US 48298865A US 3290639 A US3290639 A US 3290639A
Authority
US
Grant status
Grant
Patent type
Prior art keywords
ferrule
portion
base member
connector
direction
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
Inventor
William G Driemeyer
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.)
Joy Manufacturing Co
Original Assignee
Joy Manufacturing Co
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
Grant date

Links

Images

Classifications

    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01RLINE CONNECTORS; CURRENT COLLECTORS
    • H01R13/00Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00-H01R33/00
    • H01R13/46Bases; Cases
    • H01R13/52Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
    • H01R13/523Dustproof, splashproof, drip-proof, waterproof, or flameproof cases for use under water
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S439/00Electrical connectors
    • Y10S439/933Special insulation
    • Y10S439/935Glass or ceramic contact pin holder

Description

Dec. 6, 1966 CONNECTOR W. G. DRIEMEYER Original Filed Sept. 14, 1962 INVENTORZ WILLIAM G. DRIEMEYER I! AGENT United States Patent 8 Claims. (Cl. 339-94) This is a division of application Ser. No. 223,775, filed Sept. 14, 1962 and now abandoned.

This invention relates to a connector and more particularly to an electrical connector to be used under conditions of high ambient pressure fluid as for instance, submerged to considerable depth in the ocean or other body of liquid or gaseous fluid.

Those concerned with the development of electrical connectors have long recognized the need for a connector which would provide electrical communication with the interior of a device surrounded by high pressure fluid and would at the same time exclude such fluid from the interior of the device. The present invention fulfills this need.

The electrical connector of the present invention comprises a hollow metal body having elongated connector pins mounted therein. The connector pins are provided with insulating, mounting and sealing means which rigidly secure the pins in position, provide insulation between the pins respectively and between the pins and the body and also provide sealing means to prevent leakage of high pressure fluid.

It is therefore an object of this invention to provide a new and improved electrical connector.

Itis another object of this invention to provide a new and improved electrical connector having insulating, mounting and sealing means for use under conditions of high ambient fluid pressures.

It is a specific object of this invention to provide a new and improvedele,ctrical connector having elongated connector pins mounted in a hollow metallic body which connector pins are provided intermediate their length with a tapered frusto-conical ceramic insulator received by a tapered bore in the body to rigidly secure and electrically insulate each pin and having elastomeric sealing means bonded to the pin and the connector body, to prevent infiltration of high pressure fluid therebetween.

These and other objects of the present invention will become more readilyapparent upon consideration of the following descriptionand drawings in which:

FIG. 1 is a side elevational view partially in section of an electrical connector constructed according to the principles of this invention;

FIG. 2 is a top plan view of the electrical connector of FIG. 1;

FIG. 3 is an enlarged, fragmentary, partially sectional view, taken substantially on line 3-3 of FIG. 1, of a connector pin and insulator used in the electrical connector of FIG. 1.

In FIG. 1 there is shown an electrical connector 10 constructed according to the principles of this invention and comprising a metallic body 12 having an upwardly extending, hollow cylindrical, upper portion 14, an externally hexagonal, intermediate portion 16 and a downwardly extending, hollow cylindrical, lower portion 18. The upper end portion of the upper portion 14 is provided with external threads 15 to mate with an internally threaded sleeve portion of a mating electrical connector (not shown) in a manner well known in the art. In a similar manner the lower body portion 18 is provided with external threads 19 to provide for mounting the electrical connector of this invention on an electrical device 20 a portion of which is shown in dot and dash outline in FIG. 1. A suitable lock nut 22 engaged with-the threads 19 secures the engagement of the electrical connector 10 with the electrical device 20 and a deformable resilient sealing means such as an O ring 24 is interposed between the intermediate body portion 16 and a surface of the electrical device 20 to provide fluid tight sealing therebetween in a manner well known in the art.

The upper portion 14 and the lower portion 18 have coaxial, cylindrical inner surfaces 26 and 28, respectively, extending in opposite directions from the intermediate portion 16. The portion 16 has a pair of downwardly tapering, radially spaced bores 30 extending through the intermediate portion 16 and having axes parallel to the axis of the inner surface 26. Rigidly secured within each tapered bore 30 is a frusto-conical, elongated, ceramic insulating ferrule 32 having a downward taper equal to that of the bore 30 and so dimensioned that the bore 30 engages an intermediate portion of the ferrule 32 which extends upwardly and downwardly beyond the upper and lower surfaces of the intermediate portion 16, respectively. The ferrule 32 is formed about and rigidly secures an elongated, generally cylindrical, metallic connector pin 34 which is coaxial with the insulator 32 and extends upwardly and downwardly therebeyond. The connector pin 34 has corrugations or notches 36 (see FIG. 3) on the portion received by the ferrule 32 to prevent axial motion of the pin 34 within the ferrule 32. Each pin 34 of the illustrated embodiment has a flattened bottom portion 38 with a bore 39 therethrough to provide for solder connections in a manner well known in the art. The width of the flattened bottom portion 38 is restricted to somewhat less than the bottom diameter of the tapered bore 30 so that the ferrule 32 and the pin 34 can be inserted therethrough. It is to be appreciated that other types of connections such as terminal type or pin type can be provided at the lower end of the pin 34 as desired.

Within the inner surface 26, and filling the bottom portion thereof, is a body of plastic material 40 surrounding the upper portions of the insulators 32 which extend above the intermediate body portion 16 and encompassing and bonded to the portion of the pin 34 upwardly adjacent the ferrule 32 and to the body 12 to form a fluid tight seal between the body 12 and the connector pin 34. The plastic body 40 is formed within the metallic body 12 after the insertion of the ferrules 32 with their respective pins 34 and is implaced by a process such as pressure molding which insures that the lower portion of the inner surface 26 will be entirely filled to provide the desired sealing action. The plastic body 40 is formed of a material which is elastic and compressible so that fluid pressure applied to the elastic body 40 compresses it against the surfaces to which it is bonded to provide a fluid tight seal.

It is to be appreciated that although the connector 10 of this invention is herein shown with the two pins 34, the connector of this invention is adaptable to any number of pins as may be desired in a particular application.

It is to be noted that the ceramic material of the ferrule 32 provides mechanical support for the pin 34 and electrical insulation between the pin 34 and the metallic body 12 but is not required to provide sealing action. Since a fluid tight seal between the pin 34 and the ferrule 32 is unnecessary, the thermal coeflicients of expansion thereof can be somewhat different without causing leakage. The coefficient of expansion of the metallic body 12 is desirably somewhat greater than that of the ceramic ferrule 32 to prevent a build up of crushing stresses when the connector 10 is operating at elevated temperatures. The material of which the metallic body 12 is made can be stainless steel, aluminum, or monel metal according to the conditions of temperature, pressure and corrosive environment to be encountered in a particular appli-. cation.

The ceramic material presently being used for the ferrule 32 is a glass mica material manufactured under the tradename Mykroy by Electronic Mechanics Incorporated of Clifton, New Jersey, but could be any material of suitable mechanical and dielectric properties.

The plastic body 40 is normally formed of a neoprene elastomer which will withstand operating temperatures of minus 20 F. through 165 F. however, various elastomers are available to meet environmental requirements in the minus 65 F. and 500 F. range.

The advantages inherent in-the electrical connector of this invention reside in the separation of the functions of mechanical support and electrical insulation from the desired scaling function so that it is unnecessary that the pin 34 have a fluid tight relationship with the ferrule 32 or that the ferrule 32 have a fluid tight relationship with the body 12 since all of the necessary sealing is provided by the plastic body 40.

In the present invention a total taper angle of 4 has been found suitable for the bores 30 and the mating surface of the ferrule 32 to provide a rigid mechanical relationship between the body 12 and the ferrule 32..

A preferred embodiment of this invention having been described and illustrated it is to be realized that modifications therein can be made without departing from the broad spirit and scope of this invention. It is therefore respectfully requested that this invention be interpreted as broadly as possible and be limited only by the prior art.

What I claim is:

1. An electrical connector comprising, a base member having an opening extending therethrough, an insulating ceramic ferrule having a portion extending through said opening, said ferrule having an enlargement at one end thereof engageable with a portion of said base member to prevent movement of said ferrule in one direction with respect to said base member, an electrical conductor rigidly secured intermediate said ferrule with a portion thereof extending outwardly of said ferrule in a direction opposite said one direction, a moldable elastic dielectric member encasing the part of said portion of said conductor adjacent said ferrule and the portion of said ferrule adjacent thereto, and said dielectric member being bonded during the molding thereof at least to the said base memher and said part of said portion of said conductor.

and said dielectric member encases and is bonded to said section of the ferrule.

2. An electrical connector as set forth in claim 1 wherein said ferrule is closely received in said opening.

3. An electrical connector as set forth in claim 1 wherein said opening is tapered; and said ferrule is tapered the same amount as said opening.

4. An electrical connector as set forth in claim 1 wherein said ferrule has a section extending exteriorly of 5. An electrical connector as set forth in claim 1 including an elongated cylindrical open ended housing; said base member is integral with the internal wall of said housing and intermediate the ends thereof; said opening in the base member is frustro conical and tapers in the direction of one of said ends; said ferrule is elongated and is frustro conical and tapers the same amount as said opening; said ferrule has a section extending exteriorly of said base member and in the direction of the other of said ends; said dielectric member is bonded to the surface of said base member in the direction of the other of said ends; and said dielectric member encases and is bonded to said section of the ferrule.

6. An electrical connector as set forth in claim 5 wherein said conductor has a corrugated part; and said ferrule surrounds said corrugated part.

7. An electrical connector as set forth in claim 1 including an elongated cylindrical open ended housing; said base member is integral with the internal wall of said housing and intermediate the ends thereof; said opening in the base member is frusto conical and tapers in the direction of 7 one of the ends; said ferrule is elongated and is frusto conical and tapers the same amount as said opening; said ferrule has a section extending exteriorally of said base and in the direction of the other of said ends; said base member includes a second opening therethrough; said second opening is frusto conical and tapers in the direction of one of said ends; and further including a second ceramic ferrule having a portion extending through said second opening, said second ferrule is frustro conical and tapers the same amount as said second opening; said second ferrule has a section extending exteriorly of said base member and in the direction of the other of said ends; said dielectric mernber encases and is bonded to said sections of said ferrules, and said member is bonded to the surface of said base member in the direction of the other of said ends and at least adjacent said ferrules.

8. An electrical connector as set forth in claim 7 wherein said dielectric member is bonded to the entire surface of said base member in the direction of the other of said ends.

References Cited by the Examiner UNITED STATES PATENTS 2,503,429 4/1950 Ziegler.

3,059,210 10/1962 Luenberger "339-94 FOREIGN PATENTS 769,452 3/ 1957 Great Britain.

988,775 4/1965 Great Britain.

EDWARD C. ALLEN, Primary Examiner. J-

MQQLYNN, A ta lmm 'ten

Claims (1)

1. AN ELECTRIC CONNECTOR COMPRISING, A BASE MEMBER HAVING AN OPEN EXTENDING THERETHROUGH, AN INSULATING CERAMIC FERRULE HAVING A PORTION EXTENDING THROUGH SAID OPENING, SAID FERRULE HAVING AN ENLARGEMENT AT ONE END THEREOF ENGAGEABLE WITH A PORTION OF SAID BASE MEMBER TO PREVENT MOVEMENT OF SAID FERRULE IN ONE DIRECTION WITH RESPECT TO SAID BASE MEMBER, AN ELECTRICAL CONDUCTOR RIGIDLY SECURED INTERMEDIATE SAID FERRULE WITH A PORTION THEREOF EXTENDING OUTWARDLY OF SAID FERRULE IN A DIRECTION OPPOSITE SAID ONE DIRECTION, A MOLDABLE ELASTIC DIELECTRIC MEMBER ENCASING THE PART OF SAID PORTION OF SAID CONDUCTOR ADJACENT SAID FERRULE AND THE PORTION OF SAID FERRULE ADJACENT THERETO, AND SAID DIELECTRIC MEMBER BEING BONDED DURING THE MOLDING THEREOF AT LEAST TO THE SAID BASE MEMBER AND SAID PART OF SAID PORTION OF SAID CONDUCTOR.
US3290639A 1962-09-14 1965-08-09 Connector Expired - Lifetime US3290639A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US22377562 true 1962-09-14 1962-09-14
US3290639A US3290639A (en) 1962-09-14 1965-08-09 Connector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US3290639A US3290639A (en) 1962-09-14 1965-08-09 Connector

Publications (1)

Publication Number Publication Date
US3290639A true US3290639A (en) 1966-12-06

Family

ID=26918119

Family Applications (1)

Application Number Title Priority Date Filing Date
US3290639A Expired - Lifetime US3290639A (en) 1962-09-14 1965-08-09 Connector

Country Status (1)

Country Link
US (1) US3290639A (en)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3384860A (en) * 1965-10-20 1968-05-21 Franklin Electric Co Inc Sealed electrical connector
US3398391A (en) * 1967-08-10 1968-08-20 Alexander R. Brishka Hermetically sealed connectors
US3412365A (en) * 1965-12-28 1968-11-19 Electro Oceanics Inc Fluid-proof bulkhead plug and socket
US3437149A (en) * 1967-05-31 1969-04-08 Shaffer Tool Works Cable feed-through means and method for well head constructions
US3613048A (en) * 1968-01-18 1971-10-12 Paul Brundza Waterproof electrical connector
US4519662A (en) * 1982-04-08 1985-05-28 Westinghouse Electric Corp. High pressure electrical penetrator
US4753601A (en) * 1983-10-14 1988-06-28 Amp Incorporated Circuit board thickness compensator
US4826451A (en) * 1987-12-11 1989-05-02 General Electric Company More durable modified connector for nuclear power plant pressurizer heater applications
US4960391A (en) * 1989-06-16 1990-10-02 Amp Incorporated Hermetically sealed electrical bulkhead connector
US5011433A (en) * 1988-10-20 1991-04-30 Hermann Hemscheidt Maschinenfabrik Gmbh & Co. Multipole connector for control devices in underground working
US5203723A (en) * 1992-02-27 1993-04-20 Halliburton Logging Services Inc. Low cost plastic hermetic electrical connectors for high pressure application
US5509821A (en) * 1994-11-14 1996-04-23 Itt Corporation D-sub connector
US6300572B1 (en) * 2000-05-23 2001-10-09 Mckay Michael John Plastic insulating seal

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2503429A (en) * 1944-09-26 1950-04-11 Bell Telephone Labor Inc Metallic casing for electrical units
GB769452A (en) * 1954-08-19 1957-03-06 Sangamo Weston Improvements in the production of hermetically sealed joints in electrical plugs and the like devices
US3059210A (en) * 1959-10-26 1962-10-16 Us Electrical Motors Inc Submersible motor lead connector
GB988775A (en) * 1961-07-20 1965-04-14 Hellermanndeutsch Ltd Improvements in or relating to plugs and sockets

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2503429A (en) * 1944-09-26 1950-04-11 Bell Telephone Labor Inc Metallic casing for electrical units
GB769452A (en) * 1954-08-19 1957-03-06 Sangamo Weston Improvements in the production of hermetically sealed joints in electrical plugs and the like devices
US3059210A (en) * 1959-10-26 1962-10-16 Us Electrical Motors Inc Submersible motor lead connector
GB988775A (en) * 1961-07-20 1965-04-14 Hellermanndeutsch Ltd Improvements in or relating to plugs and sockets

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3384860A (en) * 1965-10-20 1968-05-21 Franklin Electric Co Inc Sealed electrical connector
US3412365A (en) * 1965-12-28 1968-11-19 Electro Oceanics Inc Fluid-proof bulkhead plug and socket
US3437149A (en) * 1967-05-31 1969-04-08 Shaffer Tool Works Cable feed-through means and method for well head constructions
US3398391A (en) * 1967-08-10 1968-08-20 Alexander R. Brishka Hermetically sealed connectors
US3613048A (en) * 1968-01-18 1971-10-12 Paul Brundza Waterproof electrical connector
US4519662A (en) * 1982-04-08 1985-05-28 Westinghouse Electric Corp. High pressure electrical penetrator
US4753601A (en) * 1983-10-14 1988-06-28 Amp Incorporated Circuit board thickness compensator
US4826451A (en) * 1987-12-11 1989-05-02 General Electric Company More durable modified connector for nuclear power plant pressurizer heater applications
US5011433A (en) * 1988-10-20 1991-04-30 Hermann Hemscheidt Maschinenfabrik Gmbh & Co. Multipole connector for control devices in underground working
US4960391A (en) * 1989-06-16 1990-10-02 Amp Incorporated Hermetically sealed electrical bulkhead connector
US5203723A (en) * 1992-02-27 1993-04-20 Halliburton Logging Services Inc. Low cost plastic hermetic electrical connectors for high pressure application
US5509821A (en) * 1994-11-14 1996-04-23 Itt Corporation D-sub connector
US6300572B1 (en) * 2000-05-23 2001-10-09 Mckay Michael John Plastic insulating seal

Similar Documents

Publication Publication Date Title
US3275737A (en) Coaxial cable terminating means
US3605076A (en) Hermetically sealed terminal construction
US3221290A (en) Coaxial connector featuring an improved seal
US3324445A (en) Electrical connectors
US3281760A (en) Electrical connection elements and connectors
US3495028A (en) Unitary hermetic connector with contained sealing means
US4480151A (en) Temperature stable hermetically sealed terminal
US2549647A (en) Conductor and compressible insert connector means therefor
US3601776A (en) Electrical connectors
US3522576A (en) Underwater electrical connector
US5334032A (en) Electrical connector
US6506083B1 (en) Metal-sealed, thermoplastic electrical feedthrough
US3522404A (en) Totally enclosed component
US4737123A (en) Connector assembly for packaged microwave integrated circuits
US4373767A (en) Underwater coaxial connector
US4927386A (en) Electrical cable connector for use in oil wells
US4507521A (en) High pressure electrical conductivity probe
US6364216B1 (en) Universal power connector for joining flexible cables to rigid devices in any of many configurations
US2999998A (en) Self-aligning electrical connector assembly
US3955167A (en) Encapsulated vacuum fuse assembly
US4795360A (en) Electrical cable connector for use in a nuclear environment
US3613050A (en) Hermetically sealed coaxial connecting means
US2275762A (en) Electrical connecting means
US20120100737A1 (en) Apparatus and methods of sealing and fastening pothead to power cable
US4174145A (en) High pressure electrical insulated feed thru connector