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Publication numberUS2434475 A
Publication typeGrant
Publication dateJan 13, 1948
Filing dateSep 21, 1944
Priority dateSep 21, 1944
Publication numberUS 2434475 A, US 2434475A, US-A-2434475, US2434475 A, US2434475A
InventorsHarry G Sullivan
Original AssigneeMerchandising Engineers Inc
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Electrical connector
US 2434475 A
Abstract  available in
Images(1)
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Claims  available in
Description  (OCR text may contain errors)

Jan. 13, 1948. H. G. SULLIVAN' ELECTRICAL CONNECTOR Filed Sept. 21, 1944 gmc/who@ Patented Jan. 13, 1948 ELECTRICAL CONNECTOR Harry G. Sullivan, De Land, Fla., assigner to Mer.. chandising Engineers, Inc., Detroit, Mich., a corporation of Michigan Application September 21, 1944, Serial No. 555,143

2 Claims. (Cl. 173-259) This invention relates to electrical connectors; and more particularly, to the problem of securing cabe to a connector. In the drawing I have illustrated a connector suitable for battery terminals, but my invention is suitable for other uses,

Heretofore the securing of the connector to the cable has presented a real problem. Solder is usually used, or an expansible lock ring, both of which require time, and in the case of solder, a loose connection will result due to vibration.

The principal object of my invention is to provide a quickly assembled connector which will not loosen or allow the cable to pull out, will prevent acid corrosion when used with battery terminals, and will permit the assembly of cable and connections in varying lengths without the necessity of carrying a large stock of different length cable connections.

Other objects will become apparent as the detailed description thereof proceeds.

In the drawings:

Figure 1 is a perspective of the connector;

Figure 2 is a. perspective of the connector and cable in place, illustrating the assembly thereof; and

Figure 3 is a large vertical section showing the cable in place in the connector.

Referring to the drawings, in which similar parts are designated by like numerals:

Numeral 4 designates a connector suitable for use with a battery terminal having a tapered shank 5 and a tapered bore 6 with tapered threads 'l formed on the inner surface, the threads and adjacent portions of the shank being of harder metal than the core of the cable to be used with the connector, with a a grease receptacle 8 formed at the innermost part of the bore 6. A cable 9 of the usual construction composed of copper wiring I0 and a non-conducting covering Il, is used with the connector.

As actually used, the cable 9 will have its covering Il removed partly the depth of the bore 6 and forced into the bore by rotating either the cable or the connector, as illustrated in Figure 2. The soft copper, or other metal, used for this purpose will have threads formed corresponding to the threads l of tapering depth as the cable is progressively forced into the bore, with a rm, quick connection resulting.

It has been found that grease will not only act as a lubricant, but form a seal aganst corrosion, particularly from acid fumes, and the forcing of the cable into the grease receptacle or chamber 8 will force some of the grease out and form a seal. Such a connection can be made in the eld with no additionual apparatus, and can be repaired without loss of large lengths of cable. Likewise the connection can be of any length, or at any point. The casting forming the connector can assume different forms and proportions adapted for the particular use.

Numerous variations may doubtless be devised by persons skilled in the art without departing from the principles of my invention. I, therefore, desire no limitations to be imposed on my invention, except such as are indicated in the appended claims.

What I claim is:

l. The combination of a cable and connector, the connector comprising a shank having a recess therein, a tapered screw thread on the interior of said recess decreasing in diameter inwardly, and a chamber having lubricant therein at the inner` end of said recess, the cable comprising a core of metal softer than the threads of the shank and of such diameter as to be bitingly engaged by the threads at the inner end of said recess, and an insulating cover ior said core of such diameter as to be bitingly engaged by the threads at the outer end of said recess, said cable having the insulation removed from the end of said core for a distance less than the length of the threaded portion of said recess, said cable having threads formed on its core and insulation by rotation of said cable in said recess, whereby when the cable is inserted in said recess the lubricant is forced through the convolutions of said threads to lubricate the cable, and the insulation forms an effective seal to prevent loss of the lubricant.

2. The combination of a cable and connector, the connector including a shank having a threaded bore therein closed at its inner end and open at its outer end, the inner threaded portion being smaller diametrically than the outer threaded portion, the portion of said bore adjacent the closed end constituting a grease chamber having lubricant therein, said cable comprising an exposed core portion at one end of softer metal than the threads of said shank bore and an adjacent insulated portion, said core portion being of such diameter as to be bitingly engaged by the threads of said inner portion, screwed thereinto and having complementary threads cut thereon by the act of screwing, said insulated portion being of such diameter as to be bitingly engaged by the threads on the outer portion of said shank bore, screwed thereinto and likewise having threads cut thereon by the act of screwing, and a. grease seal in the joint between the threads of said shank bore and the complementary threads of said core portion and insulated portion of said cable, formed by an extrusion under pressure of grease from said grease chamber.

HARRY G. SULLIVAN.

REFERENCES CITED The following references areV of record'in the file of this patent:

UNITED STATES PATENTS Number Number.-

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US1613070 *Aug 26, 1924Jan 4, 1927Walter ParsonBattery connection
US1678733 *May 26, 1927Jul 31, 1928Einar KromannCable socket for accumulators
US1921169 *Oct 4, 1929Aug 8, 1933Ryalls John HBattery terminal or connecter
FR765006A * Title not available
GB458749A * Title not available
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2799838 *May 5, 1955Jul 16, 1957Kribs Vernon DDevice for attaching a tubular antenna to a television receiver
US2850713 *Jun 14, 1954Sep 2, 1958Thompson Ind IncConnecting means for welding cable and transformer
US2908884 *Aug 9, 1955Oct 13, 1959Bell Telephone Labor IncSolderless connector
US3001169 *Mar 29, 1956Sep 19, 1961Isaac S BlonderTransmission-line connector
US3044037 *May 27, 1960Jul 10, 1962Honig Herbert GHigh voltage disconnect splice head
US3156762 *May 31, 1963Nov 10, 1964Burndy CorpConnector for insulated wires
US3200366 *Jul 17, 1963Aug 10, 1965IttReusable peripheral seal joint
US3355698 *Apr 28, 1965Nov 28, 1967Amp IncElectrical connector
US3601766 *Feb 13, 1969Aug 24, 1971Vernon F AlibertConnector device for supporting cables and for additionally providing an electrical connection
US3717839 *Jan 8, 1971Feb 20, 1973Amp IncThreaded electrical connections
US3786376 *Dec 18, 1970Jan 15, 1974Ball Brothers Res CorpSelf-lubricated rotary joint
US4971573 *Sep 19, 1988Nov 20, 1990Raychem CorporationElectrical connection device providing integral strain relief
US5037318 *Jun 18, 1990Aug 6, 1991General Signal CorporationConnector for joining junction and panel boxes to metal clad jacketed cable
US5069636 *Oct 23, 1990Dec 3, 1991Raychem CorporationTerminal block and adapter
US5890925 *Jan 13, 1997Apr 6, 1999Litton Systems, Inc.Electrical connector with screw-on or twist-on electrical contacts
US7413466Aug 29, 2006Aug 19, 2008Adc Telecommunications, Inc.Threaded connector and patch cord having a threaded connector
US7712214May 30, 2008May 11, 2010Adc Telecommunications, Inc.Method of assembling a patch cord having a threaded connector
US8137126Apr 5, 2010Mar 20, 2012Adc Telecommunications, Inc.Threaded connector and patch cord having a threaded connector
US8146249 *Jan 2, 2008Apr 3, 2012Pollack Laboratories, Inc.Method of assembling an hermetically-sealed feed-through device
US8684763Jun 20, 2012Apr 1, 2014Adc Telecommunications, Inc.Connector with slideable retention feature and patch cord having the same
US8841552Feb 24, 2012Sep 23, 2014Pollack Laboratories, Inc.Hermetically-sealed feed-through device and method of assembly
DE1043447B *Nov 17, 1952Nov 13, 1958Kromberg & SchubertBatterieschlitzklemme mit Kabelanschlussstueck
EP1530275A2 *Oct 20, 2004May 11, 2005ASM Automation Sensorik Messtechnik GmbHCable feedthrough
Classifications
U.S. Classification439/388, 29/458, 439/433, 439/431, 439/936, 439/415, 439/764
International ClassificationH01R11/11, H01R11/28, H01R4/26
Cooperative ClassificationY10S439/936, H01R11/281, H01R11/11, H01R4/26
European ClassificationH01R11/11, H01R11/28B, H01R4/26