Search Images Maps Play YouTube News Gmail Drive More »
Sign in
Screen reader users: click this link for accessible mode. Accessible mode has the same essential features but works better with your reader.


  1. Advanced Patent Search
Publication numberUS2765450 A
Publication typeGrant
Publication dateOct 2, 1956
Filing dateOct 20, 1952
Priority dateOct 20, 1952
Publication numberUS 2765450 A, US 2765450A, US-A-2765450, US2765450 A, US2765450A
InventorsRichardson Sidney
Original AssigneeRichardson Sidney
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Multiple electrical sockets
US 2765450 A
Abstract  available in
Previous page
Next page
Claims  available in
Description  (OCR text may contain errors)

United States Patent MULTIPLE ELECTRICAL SOCKETS Sidney Richardson, Los Angeles, Calif. Application October 20, 1952, Serial No. 315,659

1 Claim. (Cl. 339-192) This invention belongs to that general class of devices known as sockets for electrical connection purposes and relates particularly to sockets with multiple contacts adapted to receive a plate type plug or panel end with a plurality of printed conductors of the type now employed in the electronic industry.

The socket means of this invention is so constructed and arranged that the harness boards and plates can be readily and quickly changed and substituted to meet the demands of the circuit involved. Such socket means leads the way to standardization of chassis and component parts and provides the Way to combine circuits and systems through the use of printed or etched circuit boards or plates. Polarization means are also provided in each socket to prevent wrong insertions which may harm the connected circuits or cause unnecessary failures.

The invention has among its objects the production of the socket means and associated parts as described, a combination that is simple, durable and compact in structure and is inexpensive.

In the drawings:

Fig. 1 is a top plan View of a socket embodying the invention showing the arrangement of a plurality of contacts and the lobes for mounting lthe socket upon a suitable surface;

Fig. 2 is a side elevational view of the socket with a plate type plug or printed circuit board thereabove (the top portion of which is broken away);

Fig. 3 is a bottom plan view of the socket showing the various contact bottoms so curve formed so that the contacts will be held in proper position;

Fig. 4 is an enlarged sectional view taken substantially along the line 4-4 of Fig. 1;

Fig. 5 is an enlarged perspective view of one of the contacts, and

Fig. 6 is an enlarged perspective View of one of the keys.

The particular form of the invention illustrated in the drawings comprises a molded integral piece of plastic or ceramic material which is glazed or non-porous and having high weathering properties and capable of withstanding high electrical stresses. The integral unit has the opposite side walls 1 and 2, end walls 3 and 4, and bottom wall 5. The side lobes or ears 6 and 7 extend from the base portion of the unit and are provided with the screw holes 8 and 9, as shown. These lobes are short of the top portions of the unit to avoid interference of screw heads; such lobes and holes may be located at other places about the base of the unit to suit particular mounting requirements or the holes and their lobes may be omitted. The side walls and the bottom provide an open top receptacle or well 10 having the biased edging 11. This edging is recessed, as well as the side walls, at uniform spaced intervals to provide a plurality of vertical channels 12 and 13 for a purpose to be presently eX- plained.

Through the bottom 5, there is a plurality of oblong bores or slots 14 which are relatively narrow and in alinement with their respective pairs of opposed channels 12 and 13. The purpose of these slots is for each one of Ithem to allow a metallic lobe 15 of a metallic contact element 16 to pass therethrough. Such a lobe-is integral with the main body portion of the element by a narrowed neck portion 17 which is an extension from the bottom bar or base 18 of the contact element. This base has the pair of upstanding fingers 19 and 20 which are spaced apart and designed to receive a printed plate 21 that is to be inserted between them. The top ends of the fingers are biased or rounded so as to guide the printed plate between them. The fingers are formed so as to be toed toward each other and thus have a cornpression spring action for firmly gripping the bottom portions of a circuit board. A hole is provided in the lobe 15 to accommodate a wire conductor which is to be soldered thereto. Note, that the lobe is curved when formed to lock contact in place. This curve portion provides a groove for receiving the wire to be soldered thereto.

A key member 22, preferably a metallic element, has a lobe portion 23 which is integral with the main body portion by means of the neck portion 24. This lobe 23 is sized for free passage through any one of the slots 14 of the socket base. The top opposed edges of the body is bevelled or rounded so that the key can easily enter an open key slot 25 of a printed circuit board. The key or keys may be made of any suitable material that can be formed so that when the key is mounted in the socket by passing the lobe thereof through one of the slots of the socket, the lobe is formed or curved so as to be non-removable unless the lobe 23 is re-formed to allow it to pass through the slot. The number of keys employed is dependent upon the number of key-ways provided in the printed circuit board.

The contact elements 16 are preferably made of high purity copper in that they must be good conductors of electricity. By die forming, curving or twisting thelobes 15 of the contact elements they are held in their respective Slots 14 just like the key members 22. The size of the sockets, contact elements, and keys are dependent upon the size of the printed circuit boards 21. These boards or plates have one or more key-ways 25 and a plurality of conductor strips or paths 26 which may be on just one side of the board 21 or on both sides thereof.

It is, of course, understood that various changes and modifications may be made in the details of form, style, design, materials and construction of the whole or any part of the specilically described embodiment of this invention without departing from the spirit thereof; such changes and modifications are considered as being within the scope of the following claim.

I claim as my invention:

A multiple-contact socket member for making electrical connection with a slidable circuit board plug of the type having a plurality of parallel spaced conducting strips thereof, and having, in place of one of said strips nearer one side of the plug than the other, a polarizing' key-way, said socket member comprising a body of insulating material provided with an elongated well having parallel opposed side walls, the side walls being formed with a plurality of spaced aligned pairs of vertical channels opening into the well, readily removable electric contact members loosely slidable in the pairs of channels to seat in the well and be held perpendicular to the side walls thereof, said contact members including parallel opposed spring fingers, the outermost ends of each pair of spring fingers being slightly separated and curvingly ared to provide an entrance way therebetween for the circuit board plug, the said entrance ways between the pairs of ngers being in alignment, whereby the plug may be pressed between the entrance ways of all of the pairs of spring fingers throughout the length of said well to make simultaneous contact With the conducting strips of the plug, means movable with the contact members to anchor the individual Contact members releasably in the well and thereby frictionally hold said plug within the said well when the plug is en 4 gaged by the anchored contactmembers, and a polarizing key releasably anchored in the pair of channels in registry with the key-way in the plug, whereby to prevent the plug from being incorrectly inserted .in the socket member.

References Cited in the le of this patent UNITED STATES PATENTS 921-,959 Davis May 18, 1909 Henning Nov. 9, 1937 Alden Sept. 13, 1938 Favre Jan, 7, 1941 Johnston Nov. 25, 1941 Woodward Feb. 13, 1945 Schey May 29, 1945 Wilburn Sept. 30, 1947 Uline Apr. 17, 1951 Ericsson Dec. 29, 1953 FOREIGN PATENTS Great Britain Sept. 10, 1931 Great Britain Dec. 12, 1951

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US921959 *Mar 9, 1908May 18, 1909Jasper Newton DavisElectric vehicle-charging wall-socket and plug.
US2098747 *Nov 16, 1936Nov 9, 1937Henning Warren KSocket
US2129725 *Nov 28, 1934Sep 13, 1938Milton AldenSocket for vacuum tubes, etc.
US2227967 *Mar 29, 1940Jan 7, 1941Gen ElectricMounting for electrical apparatus
US2263630 *Jun 25, 1940Nov 25, 1941L D RussellElectrical receptacle and plug
US2369630 *Dec 10, 1942Feb 13, 1945United Carr Fastener CorpElectrical contact device
US2377187 *May 10, 1944May 29, 1945Gen ElectricElectrical connector
US2428057 *Aug 8, 1945Sep 30, 1947Wilburn Escol SElectrical terminal block
US2549725 *Dec 10, 1945Apr 17, 1951Bendix Aviat CorpElectrical terminal block
US2664552 *Jun 11, 1951Dec 29, 1953Ericsson Telefon Ab L MDevice for connection of cables by means of plugs and sockets
GB357171A * Title not available
GB662687A * Title not available
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2853689 *Feb 10, 1954Sep 23, 1958Jackson AntonPrinted circuit contact receptacle
US2855454 *Oct 29, 1953Oct 7, 1958Milton AldenHousing for mounting electrical circuit components
US2870424 *Dec 30, 1954Jan 20, 1959Bell Telephone Labor IncElectrical socket for miniature components
US2891229 *Oct 15, 1954Jun 16, 1959United Carr Fastener CorpElectrical assembly
US2909755 *Nov 22, 1954Oct 20, 1959Jackson AntonDual contact receptacle for printed circuits
US2910629 *Mar 29, 1956Oct 27, 1959Gen ElectricCircuit breaker panelboard
US2911609 *Sep 29, 1955Nov 3, 1959Burtt Horatio HPrinted circuit card connector
US2911612 *Jan 26, 1956Nov 3, 1959Jackson AntonPrinted circuit contact receptacles
US2926328 *Oct 8, 1956Feb 23, 1960United Carr Fastener CorpElectrical connector with torsion contacts
US2928063 *Mar 31, 1958Mar 8, 1960Essex Wire CorpElectrical connector for printed circuit boards
US2935725 *Aug 30, 1955May 3, 1960Fox BenjaminElectrical connector for printed circuit board
US2937357 *Jan 20, 1955May 17, 1960William R KennedyElectrical connector for printed circuits
US2946033 *May 15, 1956Jul 19, 1960Bell Telephone Labor IncPolarized connector for printed circuit cards
US2947964 *Jul 19, 1955Aug 2, 1960United Carr Fastener CorpEnd connector for printed circuits
US2957155 *Jun 14, 1956Oct 18, 1960Nuclear Res Associates IncAdjustable connector for printed circuit boards and the like
US2988607 *May 20, 1958Jun 13, 1961Tabet Mfg Company IncSwitch with removable units
US2994056 *Dec 13, 1955Jul 25, 1961Benjamin FoxPrinted circuit board connector
US3004235 *Jun 10, 1958Oct 10, 1961Albert CohenPlugboards for use in patchcord programming systems
US3008113 *Jul 30, 1958Nov 7, 1961IbmElectrical interconnecting and mounting device for printed-circuit boards
US3020510 *Dec 26, 1957Feb 6, 1962Bell Telephone Labor IncElectrical connector for preformed panel circuit arrangements
US3022480 *Feb 7, 1957Feb 20, 1962Emery Tiffany FrankSandwich circuit strips
US3024436 *Feb 17, 1958Mar 6, 1962Gen Motors CorpReceptacle for printed circuit boards
US3032739 *Oct 8, 1957May 1, 1962Ulrich TuchelContact assembly
US3076951 *Sep 1, 1959Feb 5, 1963Bendix CorpElectrical connector
US3149897 *Aug 29, 1961Sep 22, 1964Hans G MartineckPrinted cable connector
US3178672 *Oct 26, 1960Apr 13, 1965Kent Mfg CorpDouble-ended connector for terminal board
US3188598 *Jun 20, 1962Jun 8, 1965Bell Telephone Labor IncPrinted circuit board connector
US3196377 *Aug 4, 1961Jul 20, 1965Matrix Science CorpElectrical connector
US3205471 *Dec 5, 1962Sep 7, 1965Adolf L HerrmannElectrical connector for a pair of circuit boards
US3215968 *Dec 21, 1960Nov 2, 1965Adolf L HerrmannPrinted circuit board connector
US3246279 *Aug 19, 1963Apr 12, 1966Amphenol CorpElectrical connectors
US3270311 *Jul 12, 1962Aug 30, 1966Brown Engineering Company IncConnector for interconnecting printed circuit boards
US3302157 *Mar 24, 1964Jan 31, 1967Admiral CorpTransistor socket assembly for printed circuit board
US3364458 *Jun 1, 1966Jan 16, 1968Kernforschungsanlage JuelichUnviersal extension connector for use with indexed printed circuit boards and connector plugs
US3518612 *Jun 22, 1967Jun 30, 1970IbmConnector assembly
US3614714 *Nov 21, 1969Oct 19, 1971Rca CorpEdge connector with polarizing member
US3930706 *Jun 28, 1974Jan 6, 1976Amerace CorporationCircuit panel connector
US4416503 *Jul 13, 1981Nov 22, 1983Derek HayesGripping or locating devices
US4921453 *Apr 13, 1989May 1, 1990Ici Americas Inc.Molded complaint springs
US5163847 *Aug 5, 1991Nov 17, 1992Molex IncorporatedCard edge connector assembly
US7883344 *Sep 26, 2008Feb 8, 2011Emc CorporationElectrical connector
US20030009249 *Jun 20, 2002Jan 9, 2003Frederick LoebAudio jack module with integrated audio interface functionality
DE1238519B *Jul 9, 1963Apr 13, 1967Sperry Rand CorpMit Kodierungsmitteln ausgeruesteter Sockel und Stecker fuer Druckschaltplatten
EP0392473A2 *Apr 10, 1990Oct 17, 1990AMP-AKZO CORPORATION (a Delaware corp.)Electrical connector comprising a molded compliant spring
EP0392473A3 *Apr 10, 1990Feb 27, 1991AMP-AKZO CORPORATION (a Delaware corp.)Electrical connector comprising a molded compliant spring
U.S. Classification439/633, 439/743
International ClassificationH01R12/18
Cooperative ClassificationH01R12/721
European ClassificationH01R23/70B