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Publication numberUS3183302 A
Publication typeGrant
Publication dateMay 11, 1965
Filing dateJan 8, 1962
Priority dateJan 8, 1962
Publication numberUS 3183302 A, US 3183302A, US-A-3183302, US3183302 A, US3183302A
InventorsToedtman John A, Wochner Charles J
Original AssigneeJasper Blackburn Corp
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Cover for an electrical connector
US 3183302 A
Abstract  available in
Images(1)
Previous page
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Claims  available in
Description  (OCR text may contain errors)

y 1965 c. .1. WOCHNER ET AL 3,

COVER FOR AN ELECTRICAL CONNECTOR Filed Jan. 8, 1962 m 3 RMM m w M m Pm VJ M T Fa N 1 T 4 PLEA A 2 L T N MH %3 Cw 3 1 Y 7 B (I! Q I L )2 W 3 l 2 United States Patent 3,183,302 COVER FOR AN ELECTRICAL CONNECTOR Charles J. Wochner, Florissaut, and John A. Toedtrnan, Warson Woods, Mo., assignors to Jasper Blackburn Corporation, St. Louis, Mo., a corporation of Missouri Filed Jan. 8, 1962, Ser. No. 164,746 2 Claims. (Cl. 174-138) This invention relates generally to improvements in a cover for an electrical connector, and more particularly to improvements in a device of this type which provide optimum protection from the weather, afford maximum insulation for the electrical connection, and which provide a secure, snug fit for connectors of diiferent lengths.

In forming an electrical connection, it is well known and conventional to insert a pair of stripped wires into opposite ends of a connector body and then to crimp the body on the wires by the use of a compression tool. The present cover is adapted to fit over the connector and a portion of the attached Wires so as to protect and insulate the connector and thereby provide a safe, rigid connection.

An important object is achieved by the provision of abutments Within an elongate tubular casing constituting the cover, the abutments being adapted to engage the ends of a connector to preclude any substantial relative longitudinal movement within the casing.

Another important objective is realized by providing a plurality of abutments so that the distances differ between an abutment at one end of the compartment into which the connector fits and more than one of the abutments at the opposite end of the compartment so as to accommodate connectors of diiferent lengths.

When the connector is crimped, it is difiicult to control precisely the extent of end-wise extrusion or expansion of the connector so that the connector will always be of a definite length when installed inside of the cover. Therefore, any variation in length is compensated for by the plurality of abutments arranged in the manner previously described so that one of the abutments engages each end of the connector to preclude any substantial relative end-wise movement.

Still another important objective is provided by making the abutments resilient so that those which are overlapped by and not engaging the ends of the connector are depressed, the overlapped resilient abutments tending to hold the connector snugly in such casing.

Yet another important object is afforded by the provision of a pair of longitudinally partitions in the casing which define a compartment for receiving the connector, these partitions can abut the connector ends and thereby determine the maximum length accommodated in the compartment.

Other important advantages are realized in that the partitions are spaced inwardly from the end walls of the casing in order to give more adequate protection to the wire portions immediately adjacent the connector ends, the partitions and end walls being provided with openings through which the wires pass.

Another important objective is achieved by disposing the resilient abutments within the compartment so that at least one abutment is adapted to engage each end of the connector when the connector is not of sufficient length to engage the partitions. This structural arrangement insures a condition in which there will be no substantial relative end-wise movement between the connector and cover.

An important object is realized by constructing the tubular casing of mating elongate sections hinged together along one side so that the sections can be opened to receive the connector and subsequently closed to retain the cover in place. Locking means is provided at the other side of the sections which is operable to hold the cover selectively in the closed position on the connector.

Another important object is achieved by the provision of resilient strips in the end Walls of the casing which extend outwardly from the openings provided therein, the strips engaging and resiliently accommodating wires of different sizes extending through such openings to provide improved insulative end supports.

It is an important objective to provide an electrical connector cover that is simple and durable in construction, economically to manufacture and assemble highly efiicient in usage and function, and which can be quickly and easily applied by anyone with only a minimum of instruction.

The foregoing and numerous other objects and advantages of the invention will more clearly appear from the following detailed description of a preferred embodiment, particularly when considered in connection with the accompanying drawing, in which:

FIG. 1 is a top plan view of the cover used in an electrical connection;

FIG. 2 is an end view, partly in cross section, as seen along line 2-2 of FIG. 1;

FIG. 3 is an enlarged cross sectional view of the cover alone as seen along line 3-3 of FIG. 1;

FIG. 4 is a top plan view of the cover showing the elongate mating sections in an open position, and

FIG. 5 is a top plan view similar to FIG. 4, but showing the insertion of the connector and its attached wires within the cover.

Referring now, by characters of reference to the drawing, and first to FIG. 5, it is seen that the electrical connection includes a pair of wires 16 and 11 that are operatively connected together. As is conventional, the ends of the wires 10 and 11 are stripped of insulation and are inserted into opposite ends of an elongate connector 12 that is made of an electrically conductive metal. Before final attachment, the connector 12 is of a cylindrical construction and of a substantially constant diameter. After the wires 10 and 11 are placed in position, a suitable compression tool is fitted over the connector 12 and manipulated to crimp the connector body securely to the wire portions located internally of the body. During this crimping operation, a series of longitudinally spaced annular grooves are provided in the periphery of the connector 12. The wires 10 and 11 are now rigidly connected together in an extremely durable union.

The electrical connection includes a cover made of an electrically insulative material fitted over the connector 12 to insulate and to provide adequate weather protection.

The cover consists of an elongate tubular casing generally indicated at 13 in FIG. 1, the casing 13 including outwardly tapered endwalls 14 and 15. As is best seen in FIGS. 4 and 5, the tubular casing 13 includes a pair of elongate, mating half sections hinged together along one side by integral webs 20 that enable the sections 16 and 17 to be moved hingedly open to the position shown in FIG. 4 and subsequently moved to a closed position as shown in FIG. 1.

The opposite side of the cover 13 is provided with a locking mechanism for selectively holding the sections 16 and 17 in the closed position. More particularly, the locking mechanism includes a plurality of loops 21, a total of three in the preferred embodiment disclosed, along the opposite side of one section 17. Formed on the opposite side of the co-acting section 16 are a plurality of integral hooks 22 that are adapted to inter-fit the loops 21 when the sections 16 and 17 are moved to a closed position. The hooks 22 snap under the loops 21, as is best seen in FIG. 3. It will be realized that the loops 21 are sufiiciently resilient in character so that the associated eyes can expand in size to permit the passage of the hooks 22. Of course, if desired, the hooks 22 can be conveniently disengaged from the loops 21 to permit the sections 16 and 17 to be opened.

Each of the sections 16 and 17 is provided with a pair of partitions 23 and 24- spaced longitudinally to provide a compartment therebetween adapted to receive the connector 12. For reasons which will appear later, the partitions 23 and 24 are spaced inwardly of the ends walls 1 1 and 15 respectively. The corresponding partitions 23 and 24 of the sections 16 and 17 are in direct trans verse alignment so that such partitions form a pair of longitudinally spaced walls when the sections are closed. The end walls 14 and 15 are each provided with a central opening 25, while the partitions 23 and 24 are each provided with longitudinally aligned central opening 26, such openings 25 and 26 being best illustrated in FIG. 3. When the connector 12 is placed in the compartment between the partitions 23 and 24, and the sections 16 and 17 are closed, it is seen that the wires 10 and 11 extend through the center openings 25 and 26 formed respectively in the end walls and partitions.

The partitions 23 and 24 can engage the ends of the connector 12 and thereby define the maximum length of the connector with which the cover can be utilized. It will be readily apparent that if the connector length is sufliciently shorter than the distance between the partitions 23 and 24 there couldbe a loose fit that would subject the connector 12 to relatively longitudinal movement Within the casing 13, such movement being objectionable if it exists to any substantial degree.

To preclude relative longitudinal shifting of the condoctor 12 when the length of the connector 12 is something less than the distance between the partitions, a

plurality of tabs constituting abutments Sil, 31, 32 and 33 are formed integrally with each of sections 16 and 17 and are located within the compartment. Specifically, tabs 30 and 31 are located at one end of the compartment while tabs 32 and 33 are located at the opposite end. For reasons which will appear upon later description of the component parts, the tabs 311-33 inclusive are resilient and extend into the compartment on opposite sides of and substantially parallel to a plane passed along the longitudinal axis of each section.

From FIGS. 4 and 5, it is seen that the distances differ between more than one of the tabs at one end of the compartment and more than one of the tabs at the opposite end of the compartment so as to accommodate connectors of different lengths. For example, the distance between tab 311 and tab 32 is different from the distance between tab 311 and tab 33. Similarly, the distance between tab 31 and tab 32. is different than the distance between tab 31 and tab 33. Thus it will be realized that any pair of co-acting tabs such as tab 311 and tab 32 or 3'3, is adapted to engage the opposed ends of the connector 12, de ending upon the length of the particular connector 2 utilized.

The tabs 311453 inclusive cooperate to preclude any substantial relative longitudinal movement of the connector 12 in the casing 13. Of course, the tabs 311-33 can also cooperate with the partitions 23 and 24, depending upon the connector length involved, to preclude longitudinal shifting of the connector 12 in a manner similar to that previously described.

Attention is directed to FIG. 5 in which it will be seen that the tab 31 engages one end of connector 12 while cooperating tab 33 engages the opposite connector end.

The tabs 311413 inclusive are resilient and can be depressed against the arcuate wall defining the casing 33. If it is assumed that the length of the connector 12 is slightly longer than that illustrated in FIG. 5, it is possible for the lefthand end of the connector to engage the tab 36 rather than the tab 31. In this event, the connector 12 will overlap the tab 31. When the sections 16 and 17 are closed, the connector ends will depress the tabs 31.

1 Depending upon the connector length, it is seen that the tabs overlapped by and not engaging the ends of the connector 12 are resiliently depressed so that such overlapped tabs tend to hold the connector snugly in the casing 13.

Each of the end walls 14 and 15 is provided with a plurality of resilient strips 34 extending outwardly from the openings 25 provided in the end walls. The strips 34 engage the periphery of the associated wires 10 and 11, and because of the resilient character of such strips 34-, the strips 34 accommodate wires of different sizes extending through the openings 25 to provide support.

' Because the end walls 14 and 15 are outwardlytapered, there is a tendency of such walls and their integral resilient strips 34 to direct moisture away from tie interior of the casing 13. Moreover, it will be noted that the partitions 23 and 24 and the tabs 30-33 inclusive cooperate to confine the connector '12 within a definite compartment within the casing 13 and spaced a substantial distance from the end walls 14 and 15. With this structural arrangement, the end walls 14 and 15 engage the insulation on the wires 10 and 11 and fully protect the stripped portions of such wires as well as the connector 12.

It is thought that the assembly and functional advantages of the cover have become fully apparent from the foregoing detailed description of parts, but for completeness of disclosure the installation of the cover will be briefly described at this point. It will be assumed that the wires 11 and '11 have been stripped, inserted into the ends of the connector 12 and that the connector 12. has been crimped by a suitable compression tool to form a rigid connection.

The casing 13 is opened as is illustrated in FIG. 5 and the connector 12 is placed Within the compartment defined by the partitions 2/3 and 24.

Depending upon the particular length of the connector 12 used, the partitions 23 and 24 or the tabs SW33 inclusive or any combination thereof will engage the opposite ends of the connector 12. The wires 10 and 11 will extend through the partitions 23 and 24 and through the end walls 14 and 15.

The casing sections 16 and 17 are closed over the connector 12 as permitted by the hinged webs 20. As the overlapped by the connector 12 are depressed and act resiliently to hold the connector 12'snugly in place. Cooperating with the depressed tabs, those tabs, partitions or combination thereof that engage the ends of the connector 12. preclude any substantial relative longitudinal movement of the connector 12 in the casing 13. It is seen that a fully protected, rigid and stable electrical connection is realized.

Although the invention has been described by making detailed reference to a single preferred embodiment, such detail is to be understood in an instructive, rather than in any restrictive sense, many variants being possible within the scope of the claims hereunto appended.

We claim as our invention:

1. A cover for an electrical connector comprising:

(a) an elongate tubular casing made of'insulating material,the casing having end walls,

(12) a pair of integral partitions extending into the casing in longitudinally spaced relation to provide a compartment therebetween, and

(c) a plurality of abutments integral with the casing and extending into the casing compartment, at least one abutment being located at one end of the compartment, and more than one abutment being located at the other end of the compartment,

((1) the longitudinal distances between each abutment at the said one end of the compartment and each abutment at the said other end of the compartment being different for accommodating connectors of different lengths adapted to be located therebetween and engaged endwise thereby.

2. A cover for an electrical connector comprising:

(a) an elongate tubular casing made of insulating material, the casing having end walls,

(b) a pair of integral partitions extending into the casing in longitudinally spaced relation to provide a compartment therebetween,

'(c) a plurality of resilient tabs integral with the casing and extending into each end of the casing compartment,

(d) the longitudinal distances between each tab at one end of the compartment and each tab at the other end of the compartment being different for accommodating connectors of different lengths adapted to be located therebetween and engaged endwise thereby, and

(e) the resilient tabs spaced inwardly of the tabs at the ends of the compartment adapted to engage any one and hold the connector snugly in the casing compartment.

References Cited by the Examiner UNITED STATES PATENTS OTHER REFERENCES Jasper Blackburn Corp. Advertisement Service Entrance Sleeve, Electrical World, vol. 156, No. 22, Nov. 27, 1961, p. 60.

E. JAMES 'SAX, Primary Examiner.

of the dilferent connectors 'being adapted to engage 20 JOHN P. WILDMAN, Examiner.

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US2333266 *Jun 30, 1941Nov 2, 1943Miller James BEmergency wire connector
US2894056 *May 28, 1957Jul 7, 1959Virginia Plastics And ChemicalProtective sheath for a cable connector
US3030601 *Oct 30, 1958Apr 17, 1962Krebs Donald RElectric cord connector
AT117776B * Title not available
FR1224522A * Title not available
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3223776 *May 13, 1965Dec 14, 1965Thomas & Betts CorpCable-tap closure device
US3278674 *Jun 12, 1964Oct 11, 1966Burndy CorpConnector insulating housing
US3325591 *Nov 30, 1965Jun 13, 1967Amp IncInsulative cover for a connection assembly
US3484541 *Sep 27, 1968Dec 16, 1969Anderson Electric CorpElectrical connector cover
US3711632 *Dec 2, 1971Jan 16, 1973Gen Motors CorpEnd fitting for corrugated conduit
US3711633 *Dec 2, 1971Jan 16, 1973Gen Motors CorpFitting means for axially slit corrugated conduits
US3846725 *Apr 30, 1973Nov 5, 1974Gen Instrument CorpCoil retainer
US4451696 *Nov 15, 1982May 29, 1984Amp IncorporatedToolless splice sealant device
US4491818 *Mar 30, 1983Jan 1, 1985Zenith Electronics CorporationPickup coil assembly with coaxial feed
US4647713 *Oct 25, 1984Mar 3, 1987Nijs Jacob DePressurized telecommunication cable joint closure method and apparatus
US4749363 *Mar 12, 1987Jun 7, 1988Robert LuskaExtension cord safety box
US4849580 *Feb 11, 1988Jul 18, 1989Minnesota Mining And Manufacturing CompanyEnvironmental protection closure for wire splices; and method
US4863535 *Dec 9, 1987Sep 5, 1989Minnesota Mining And Manufacturing CompanyElectrical environmental sealant and method
US4935582 *Jan 6, 1989Jun 19, 1990United Technologies Automotive, Inc.Splice enclosure for electrical wires
US5003278 *Mar 1, 1990Mar 26, 1991Ferrishield, Inc.Ferrite suppressor case with retaining fingers
US5046766 *Jun 4, 1990Sep 10, 1991Sofanou, S.A.Connector for corrugated tubes
US5191172 *Nov 7, 1991Mar 2, 1993Garganese Richard SCable terminal protector
US5397859 *Dec 10, 1993Mar 14, 1995The Whitaker CorporationEnclosure with sealant for spliced coaxial cables
US5561269 *Jun 21, 1994Oct 1, 1996The Whitaker CorporationEnclosure for spliced coaxial cables
US5594213 *Jun 19, 1995Jan 14, 1997Osram Sylvania Inc.Wire splice
US5606150 *Jul 25, 1995Feb 25, 1997The Whitaker CorporationEnclosure for spliced cable
US5684274 *Dec 4, 1995Nov 4, 1997Kmd Technologies, Inc.Enclosure for cable splice assembly
US5691508 *Oct 31, 1995Nov 25, 1997The Whitaker CorporationEnclosure for spliced multiconductor cable
US5696351 *Mar 10, 1995Dec 9, 1997Ericsson RaynetCable retention and sealing device
US5746610 *Nov 26, 1996May 5, 1998The Whitaker CorporationGround contact for a splice enclosure
US5763835 *Nov 1, 1995Jun 9, 1998Raychem CorporationGel-filled closure
US5828005 *Oct 30, 1996Oct 27, 1998Raychem CorporationGel-filled closure
US5834694 *May 23, 1997Nov 10, 1998General Motors CorporationCapillary action preventor
US5844171 *Apr 22, 1997Dec 1, 1998Mev CorporationEnvironmentally enclosed cable splice
US5977482 *Feb 16, 1999Nov 2, 1999Osram Sylvania Inc.Wire splice
US6111201 *May 22, 1998Aug 29, 2000Thomas & Betts International, Inc.Cable splice closure
US6169250 *Apr 29, 1999Jan 2, 20013M Innovative Properties CompanyLow voltage re-enterable splice enclosure
US6246003 *Jul 26, 1996Jun 12, 2001Ian FerrisSealing enclosure device
US6559748Mar 24, 1994May 6, 2003Kitigawa Industries Co., Ltd.Electric noise absorber
US7044761Apr 7, 2004May 16, 2006Panduit Corp.Transparent insulating enclosure
US7066760Sep 29, 2005Jun 27, 2006Panduit Corp.Transparent insulating enclosure
US7094972Jun 23, 2005Aug 22, 2006Thomas & Betts International, Inc.Insulating cover for electrical connectors
US7141738Feb 2, 2004Nov 28, 20063M Innovative Properties CompanyRe-enterable splice enclosure
US7189100Feb 18, 2005Mar 13, 2007Colbourne Jerome GCord retaining housing and method
US7201600May 9, 2006Apr 10, 2007Panduit Corp.Transparent insulating enclosure
US7442067 *Jul 6, 2007Oct 28, 2008Amaral Jerry NEllipsoids shape cord clamp
US7488195Feb 12, 2007Feb 10, 2009Panduit Corp.Transparent insulating enclosure
US7550672Aug 21, 2006Jun 23, 2009Fci Americas Technology, Inc.Electrical connector and conductor assembly cover
US8181995 *Sep 7, 2007May 22, 2012Tyco Healthcare Group LpCool tip junction
US8263868 *May 31, 2007Sep 11, 2012Wuerth Elektronik Eisos Gmbh & Co. KgDevice for absorption of noise
US8480665Apr 30, 2012Jul 9, 2013Covidien LpCool tip junction
US8784128Jan 16, 2013Jul 22, 2014Thomas & Betts International, Inc.Insulation piercing connector housing
US9425604 *Dec 9, 2014Aug 23, 2016James Brooks LawrenceAdjustable electrical cord connector protection device
US9537297 *Sep 28, 2012Jan 3, 2017Thomas & Betts International, LlcAutomatic splice water drip nose cone
US9608361 *Jul 8, 2016Mar 28, 2017Commscope Technologies LlcProtective sleeve for weatherproofing boot for interface of cable to remote radio head
US20040219820 *Apr 7, 2004Nov 4, 2004Sokol Robert LTransparent insulating enclosure
US20050167147 *Feb 2, 2004Aug 4, 2005Yvonnick MarsacRe-enterable splice enclosure
US20060011372 *Jun 23, 2005Jan 19, 2006Thomas & Betts International, Inc.Insulating cover for electrical connectors
US20060021790 *Sep 29, 2005Feb 2, 2006Sokol Robert LTransparent insulating enclosure
US20060180333 *Apr 12, 2006Aug 17, 2006Thomas & Betts International, Inc.Insulating cover for electrical connectors
US20060205263 *May 9, 2006Sep 14, 2006Sokol Robert LTransparent insulating enclosure
US20070051532 *Aug 21, 2006Mar 8, 2007Fci Americas Technology, Inc.Electrical connector and conductor assembly cover
US20070149012 *Feb 12, 2007Jun 28, 2007Panduit Corp.Transparent Insulating Enclosure
US20090069793 *Sep 7, 2007Mar 12, 2009Decarlo Arnold VCool tip junction
US20090124112 *Jan 23, 2009May 14, 2009Panduit Corp.Transparent Insulating Enclosure
US20100170712 *May 31, 2007Jul 8, 2010Oliver KonzDevice for Absorption of Noise
US20130081852 *Sep 28, 2012Apr 4, 2013Thomas & Betts International, Inc.Automatic splice water drip nose cone
US20170018871 *Jul 8, 2016Jan 19, 2017Commscope Technologies LlcProtective sleeve for weatherproofing boot for interface of cable to remote radio head
US20170070042 *Nov 21, 2016Mar 9, 2017Thomas & Betts International, LlcAutomatic splice water drip nose cone
DE2334429A1 *Jul 6, 1973Jan 23, 1975Felten & Guilleaume SchaltanlCable jointing box which is split longitudinally - has series of interlocking projections for clipping the halves together
DE4004211A1 *Feb 12, 1990Aug 23, 1990Kitagawa Ind Co LtdElektrischer rauschabsorber
DE4104100A1 *Feb 11, 1991Sep 5, 1991Ferrishield IncRauschabschirmung
DE4104100C2 *Feb 11, 1991Sep 24, 1998Ferrishield IncRauschabschirmung
DE4333447C1 *Sep 30, 1993Mar 16, 1995Siemens AgDevice for connecting at least two electrical cables or cable cores
DE8806807U1 *May 25, 1988Jul 7, 1988Kitagawa Industries Co., Ltd., Nagoya, Aichi, JpTitle not available
DE102006027312A1 *Jun 8, 2006Dec 13, 2007Würth Elektronik eiSos Gmbh & Co. KGVorrichtung zum Absorbieren des Rauschens
EP0602436A2 *Nov 27, 1993Jun 22, 1994Mannesmann Kienzle GmbHBranch coupling for electric conductors
EP0602436A3 *Nov 27, 1993Nov 23, 1994Mannesmann Kienzle GmbhBranch coupling for electric conductors.
WO1986002785A1 *Oct 25, 1985May 9, 1986Sigmaform CorporationPressurized telecommunication cable joint closure method and apparatus
WO2007030321A2 *Aug 23, 2006Mar 15, 2007Fci Americas Technology, Inc.Electrical connector and conductor assembly cover
WO2007030321A3 *Aug 23, 2006May 7, 2009Fci Americas Technology IncElectrical connector and conductor assembly cover
WO2017016697A1 *May 17, 2016Feb 2, 2017Norma Germany GmbhWind-protection casing and plug-connector device comprising same
Classifications
U.S. Classification174/138.00F, 174/92
International ClassificationH02G15/18, H01R4/20, H01R4/10
Cooperative ClassificationH02G15/18, H01R4/20
European ClassificationH02G15/18, H01R4/20