US2563713A - Electrical connector having resilient inserts - Google Patents
Electrical connector having resilient inserts Download PDFInfo
- Publication number
- US2563713A US2563713A US617560A US61756045A US2563713A US 2563713 A US2563713 A US 2563713A US 617560 A US617560 A US 617560A US 61756045 A US61756045 A US 61756045A US 2563713 A US2563713 A US 2563713A
- Authority
- US
- United States
- Prior art keywords
- insert
- support
- shell
- grommet
- resilient
- 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
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Classifications
-
- 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
- H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
- H01R13/621—Bolt, set screw or screw clamp
-
- Y—GENERAL 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S439/00—Electrical connectors
- Y10S439/933—Special insulation
- Y10S439/934—High voltage barrier, e.g. surface arcing or corona preventing insulator
-
- Y—GENERAL 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S439/00—Electrical connectors
- Y10S439/948—Contact or connector with insertion depth limiter
Definitions
- a rigid tubular shell having an internal cone-like wall portion.
- a resilient insert in said shell having a plurality of passages therethrough, a rigid contact having a close fit in each of said openings and projecting beyond one end thereof, a flexible conductor electrically connected to the projecting end of each contact, a support of resilient material centrally disposed with respect to said projecting ends and said flexible conductors to act as an internal support therefor, a tubular grommet of insulating material surrounding said support and having engagement externally with said cone-like wall portion, the adjacent surfaces of said support and grommet.
Description
Aug. 7, 1951 J. R. FREI ETAL ELECTRICAL CONNECTOR HAVING RESILIENT INSERTS Filed Sept. 20, 1945 a a 4 E 1 w v, E 6 7/1, a lqlllarlfvl lwmqkmlppm@l hmhllvllfl U 4 ..u u.flwm l nI .liRu-u IN V EN TORS M e. (7460 BY &
ATTORNEY.
Patented Aug. 7, 1951 ELECTRICAL CONNECTOR HAVING RESILIENT INSERTS Jakob R. Frei and William A. Uline, Sidney, N. Y., assignors to Bendix Aviation Corporation, New York, N. Y., a corporation of Delaware Application September 20, 1945, Serial No. 617,560
6 Claims. 1
This invention relates to electrical connections and the means for making them.
Prior connections were in general subject to breaking under bending stresses, to easy separation, and to rapid disintegration by vibration.
It is an object of the invention to make pin and socket connectors of a new and improved type and in particular to avoid the necessity of machining pins, which is an expensive operation, particularly when applied to small size materials. Another object of the invention is to afford protection to pin and socket connections against blows and crushing or bending stresses, while maintaining resilience in the mounting of the connection. Another object is to protect and reinforce the joints between the soldered ends of wires or other electrical conductors and the connectors to which they are attached. Yet an- ,other object is to assemble the several parts of a connection in units, all the parts of which cooperate to produce a new and useful result.
The above and further objects and novel features of the invention will more fully appear from the following detail description when the same is read in connection with the accompanying drawings. It is to be expressly understood, however, that the drawings are for the purpose of illustration only, and are not intended as a definition of the limits of the invention, reference for this latter purpose being had primarily to the appended claims.
In the drawings, wherein like reference characters refer to like parts throughout the several views,
Fig. 1 is a longitudinal section through the socket bearing part of the connection;
Fig. 2 is a longitudinal sectionthrough the pin bearing part of the connection;
Fig. 3 is a perspective detail of a rubber buffer;
Fig. 4 is a section detail of a socket type connector; and i Fig. 5 is a sectional detail of a pin type connector.
Figs. 1 and 2 have been designed to show the operative relationship of the socket insert as sembly and the pin insert assembly of a novel connection. The connection involves a pin connector and a socket conector which have cooperating tight fitting surfaces that provide for the efiicient transmission of electrical current. The assembly contains one or a plurality of connector elements, each of which is of copper or some other metal having good electrical conducting properties, that is preferably silver plated on its surface, and that may be mounted in a resilient dielectric block which is in turn mounted within a metallic protecting shell. The ends of the connector elements to which the wires are to be attached project beyond the block or insert and have solder wells to receive the ends of the wires. The projecting ends and the wire joint are given protection by inner and outer supporting means, the inner of which is called for convenience a support or buffer and the outer of which is called a grommet. The inner member may be channeled to receive the ends of the sockets and the ends of the wires, in which case a grommet having a smooth inner surface may be employed, or the grooves may be formed on the interior of the grommet and a rounded support may be employed between the joints.
In Fig. 1 is shown a section of a socket insert assembly comprising a grommet [0 which is adapted to fit over and enclose a support ll having four va'nes or ribs l2 which bound four longitudinal grooves I3 in the surface of the support. At the end of the support the crossed ribs M are formed for cooperation with crossed depressions in the end of the insert. The support in end view therefore has somewhat the appearance of a cross patee with rounded bars and approximately semi-circular grooves between the bars.
The insert, as shown in Fig. 1, is composed of a block 20 of rubber or other resilient dielectric material having an appropriate number of holes to receive sockets 2|. In the particular form of the device which is illustrated in the drawings, four sockets are included in the socket assembly and four cooperating pins are mounted in the pin assembly. The said holes are enlarged at one end to receive flanges 22 on the ends of the sockets and the shoulders formed by the, enlargement of the holes cooperate with the flanges as abutments to position the sockets in the insert. The sockets 2| project beyond the inner end of the insert 20, and there is formed between them in the end of the insert a pair of crossed grooves 23 in which the crossed ridges H of the support are adapted to be seated. Prior to the seating of the support ll between the projecting ends of the sockets,.cement may be applied in order to integrate the support with the insert. The size of the buffer is such that the walls of the socket bulge slightly beyond the circumference thereof, a feature that is important from the standpoint of protection and strength. The engaging and interference of this cross in its mating member improves creepage and fiashover between contacts and permits the use of higher voltages 4 for the same contact spacing than is feasible 7 construction improves creepage and flasho with prior art designs. conditions and permits units with standard con- The sockets as shown in Figs. 1 and 4 are preftact spacings to be used with higher voltages than erably tubular, having flanges 22 peened at their heretofore.
ends and being pinched together in a plurality of The novel pin and socket assemblies are held. places 24 about a midportion of the tube. Pinchin cooperating relation by a novel shell which ing of the tube is accomplished by swaging. prefserves to protect and to unite the parts or the 'erably at three points 120 degrees apart, the connection. The protecting shell 50 for the socket 'swaging being carried out to such an extent that insert assembly is adapted to be seated over the The pin insert" has afacer light does not show through the inner diameter. grommet l0, and preferably to hold it under com- By this means a stop is provided that prevents pression, as by means of a forced and conical solder from passing beyond the solder well 25 fit with the end portion 5| of the shell. The into the portion of the connector that is designed shell is exteriorly provided with a shoulder 53 toreceive the pins. The sockets may be cemented to serve as ameans of purchase for a nut 54 in place in the insert if desired. The indented having internal screw threads. The end of the parts of the tube 12l act to. restrain the motion shell 50 projects as a sleeve 55 that is provided thereof with respect to the insert 20, because the with a slot 56 which is adapted to receive a resilient material of the insert makes its way cooperating key formed in the surface of the to some extent into the dents, particularly when cooperating shell of the pin insert assembly. A an internal annular ridge is provided in the insplit metal ring. 51 of stainless steel or other satsert. V e lsfactory material is mounted in an annular The novel socket connector may be assembled groove in the insert 20, projects therefrom, and as follows, although other orders of steps may be is received in a groove 58 in the interior of followed if advantage is gained thereby: The the shell. The ring may be snapped into a presockets'll are pushed into the insert, the diameformed groove in the insert or molded in place. ter of the holes of the insert being preferably The shell 50 for the pin insert assembly has somewhat less than the diameter of the sockets external screw threads 5| adapted to cooperate so that forced fit is obtained in the resilient with the screw threads in the nut 54. A key dielectric material of the insert. The sockets are 62 is provided on the shell 60 for cooperation with emplaced in the insert 20 with the open sides slot 56 in sleeve 55. The end of shell 50 forms of the wells 25 facing outwardly, the grommet In a sleeve cooperating with sleeve 55, so that breakis passed over the wires, and the conductor wires ing strains are ineffective at the joint. A split 26 are soldered in place. The crossed ribs ll of ring 53 mounted in a groove in the insert and support Ii are now mounted in crossed groove projecting into a groove in the shell serves to 23, and receive the 2 5 in grooves i3." The align the parts longitudinally as the key 52 serves grommet is passed over the support. Because of to align them angularly. The pin insert must be their size the sockets bulge "beyond the side of aligned with the key and the socket i t t the support and the grommettendstopress them theslot so that the pins and sockets will be firmly against the'support that thejoints are aligned automatically when the key and slot are held firmly but resilientlyand' are protected from aliefied. I o k, :jf; e I r I The end of the sleeve is twice reduced, once A similar novel mountingls' employed forithe at 64 to form a seat for the tubular connecting novel pin structure of Figs; 2 and 5.- As shown .member and shield 65, and once at 66 to form a in t ese fi ur s. t e p s e'n ov d ab e seat for the tubular conical retainer 61 that holds member 30 having a well ii at .oneend and a the grommet 68 under compression against the.
tage of the invention is the presentation of a line connection which has electrically conductivity of a high order. Another advantage of the invention is in a pin that needs no machinin but that may be drawn as wire, cut to size, and bent to shape. A further advantage of the invention is in a socket that is made of simple materials by simple operations. A particular advantage is in the combination of the spring pin and tubular socket of simple type, which are electrically efiicient, mechanically strong, and easy and inexpensive to make. Other advantages of the invention will be in part apparent and in part deduced from the specification hereinabove.
Although only one embodiment of the present invention is herein illustrated and described, it is to be expressly understood that the same is not limited thereto. Various changes may be made therein, particularly in the design and arrangement of the parts illustrated without departing from the spirit and scope of the invention, as will now be apparent to those skilled in the art.
What is claimed is:
1. In an electrical connector of the pin and socket type, contact members mounted in a resilient insert and being of such length that their ends project from at least one end of said insert, a rubber support mounted within the said projecting ends and in a recess of cooperating shape in the insert, a rubber grommet enclosing said projecting ends and said support, and a metallic shell protectively and compressively mounting and enclosing the insert and grommet and provided with means to hold the parts in cooperating relation.
2. In an electrical connector of the :pin and socket type, contact members mounted in a resilient dielectric insert and having ends that project from the insert, a resilient dielectric support mounted within said projecting ends, a resilient dielectric grommet enclosing and protecting said support and said projecting ends, and a metallic shell compressively and protectively enclosing and mounting the insert and grommet and provided with means to hold the parts in cooperating relation.
3. In an electrical connector, a rigid tubular shell having an internal cone-like wall portion. a resilient insert in said shell having a plurality of passages therethrough, a rigid contact having a close fit in each of said openings and proiecting beyond one end thereof, a flexible conductor electrically connected to the projecting end of each contact, a support of resilient material centrally disposed with respect to said projecting ends and said flexible conductors to act as an internal support therefor, a tubular grommet of insulating material surrounding said support and having engagement externally with said cone-like wall portion, the adjacent surfaces of said support and grommet. being so formed as to provide passages in which said flexible conductors are resiliently gripped, and means engaging oppositely facing grooves in said shell and insert for removably retaining said insert in the shell and in compressed end to end contact with said support and grommet, and for holding said grommet under pressure against said cone-like wall portion.
4. In an electrical connector, a rigid shell having a cone-like internal wall portion and a cylindrical portion, a contact supporting resilient insert having a close fit in said cylindrical portion and a plurality of passages therethrough for electrical contacts, a resilient tubular grommet in said cone-like portion of the shell, a resilient support within the grommet, the adjacent surfaces of said support and grommet being such as to provide passages forming extensions of the passages in said insert, and means engaging an external groove in said insert for supporting the same in the shell and in compressive end to end contact with said support and grommet.
5. In an electrical connector, a rigid shell having an internal cone-like portion and a cylindrical portion, a contact supporting resilient insert having a clos fit in said cylindrical portion and a plurality of passages therethrough for electrical contacts, a resilient tubular grommet engaging the wall of said cone-like portion, a resilient support within the grommet, said support having external 'grooves therein which cooperate with the internal surface of said grom-.
met to form passages in line with the passages in said insert, and means for holding said insert in said shell in compressive face to face contact with said grommet and support.
6. In an electrical connector of the pin and socket type, contact members mounted in an insert and projecting from at least one end thereof, a resilient support between the projecting ends of said contact members and in abutting relation with the, insert to reinforce said projecting ends, a conical grommet enclosing the support and said projecting ends, and a metallic shell compressively and protectively mounting and enclosing the insert and grommet and having means to hold the parts in cooperating relation, said shell also having a conical portion cooperating directly with said conical grommet.
JAKOB R. FREI. WILLIAM A. ULINE.
REFERENCES The following references are 01 record in the file of this patent:
UNITED STATES PATENTS Number Name Date 1,559,361 Parker Oct. 27, 1925 1,686,534 Rosenzweig Oct. 9, 1928 1,940,666 Diamond Dec. 26, 1933 2,100,009 Hardy, Jr Nov. 23, 1937 2,274,398 Conrad no. Feb. 24, 1942 2,291,793 Chandler u--. Aug. 4, 1942 2,339,174 Kosha. Jan. 11, 1944 2,371,551 Schmitt Mar. 13, 1945 2,379,942 Webber I. July 10*, 1945 2,380,908 Heller July 31, 1945 2,421,155 Miller et a1. May 27, 1947 2,443,654 Else et al June 22, 1948 FOREIGN PATENTS Number Country Date England Feb. 14.. 1941
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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US617560A US2563713A (en) | 1945-09-20 | 1945-09-20 | Electrical connector having resilient inserts |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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US617560A US2563713A (en) | 1945-09-20 | 1945-09-20 | Electrical connector having resilient inserts |
Publications (1)
Publication Number | Publication Date |
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US2563713A true US2563713A (en) | 1951-08-07 |
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US617560A Expired - Lifetime US2563713A (en) | 1945-09-20 | 1945-09-20 | Electrical connector having resilient inserts |
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Cited By (49)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2684401A (en) * | 1951-11-05 | 1954-07-20 | Electro Snap Switch & Mfg Co | Sealtight conduit connector |
US2701867A (en) * | 1951-05-04 | 1955-02-08 | Arthur W Obenschain | Cable connector |
US2722667A (en) * | 1951-11-15 | 1955-11-01 | Ohio Brass Co | Cable connectors |
US2747167A (en) * | 1954-01-04 | 1956-05-22 | Int Rectifier Corp | Plug-in mount for a circuit unit |
US2760172A (en) * | 1953-02-10 | 1956-08-21 | Coop Ind Inc | Electrical connectors |
US2779008A (en) * | 1955-01-31 | 1957-01-22 | Whitney Blake Co | Electrical connector having resilient insert |
US2787770A (en) * | 1953-05-29 | 1957-04-02 | Cannon Electric Co | Electric connector having pliant body portion |
US2839595A (en) * | 1952-12-12 | 1958-06-17 | Microdot Inc | Electrical connectors |
US2906986A (en) * | 1954-04-23 | 1959-09-29 | Edward J Schaefer | Cable connector |
US2959759A (en) * | 1957-04-10 | 1960-11-08 | Pyle National Co | Contact for electrical connector |
US2961632A (en) * | 1956-06-28 | 1960-11-22 | Ind Engineering And Equipment | Terminal structure for electrical heating unit |
US2964725A (en) * | 1956-11-09 | 1960-12-13 | Dictograph Products Inc | Miniature plug receptacle |
US3039076A (en) * | 1959-02-17 | 1962-06-12 | Aymar Julian Robert | Electrical contact |
US3123427A (en) * | 1964-03-03 | Electrical connectors | ||
US3125395A (en) * | 1959-04-24 | 1964-03-17 | Electrical connector | |
US3221292A (en) * | 1961-10-18 | 1965-11-30 | Bendix Corp | Electrical connector |
US3277422A (en) * | 1961-07-31 | 1966-10-04 | Itt | Electrical connector having shrouded pin contacts |
US3390369A (en) * | 1966-01-05 | 1968-06-25 | Killark Electric Mfg Company | Electric plug or receptacle assembly with interchangeable parts |
US3409864A (en) * | 1965-09-23 | 1968-11-05 | Amp Inc | Sealed electrical connecting device |
US3912351A (en) * | 1973-06-19 | 1975-10-14 | Bosch Gmbh Robert | Electrical connecting arrangement |
US4808127A (en) * | 1985-10-18 | 1989-02-28 | Arbus, Inc. | Connector assembly |
US20030124905A1 (en) * | 2000-02-28 | 2003-07-03 | Douglas Hyde | Quick connecting universal electrical box and wiring_system |
US20040180583A1 (en) * | 2003-03-12 | 2004-09-16 | Nihon I/F Kabushiki Kaisha | Mold pin for cable terminal |
US20050112953A1 (en) * | 2003-11-25 | 2005-05-26 | Ratchford Lloyd G. | Slotted contact retention and alignment device for contact assembles |
US20090318009A1 (en) * | 2008-06-20 | 2009-12-24 | Delphi Technologies, Inc. | Connector retainer |
US9331400B1 (en) * | 2014-12-19 | 2016-05-03 | Tyco Electronics Corporation | Male contact assembly |
US9441800B1 (en) | 2011-12-09 | 2016-09-13 | Willis Electric Co., Ltd. | Modular lighted artificial tree |
US9484687B1 (en) | 2010-09-23 | 2016-11-01 | Willis Electric Co., Ltd. | Modular lighted tree |
US9526286B2 (en) | 2012-05-08 | 2016-12-27 | Willis Electric Co., Ltd. | Modular tree with electrical connector |
US9572446B2 (en) | 2012-05-08 | 2017-02-21 | Willis Electric Co., Ltd. | Modular tree with locking trunk and locking electrical connectors |
US9648919B2 (en) | 2012-05-08 | 2017-05-16 | Willis Electric Co., Ltd. | Modular tree with rotation-lock electrical connectors |
US9664362B2 (en) | 2011-11-14 | 2017-05-30 | Willis Electric Co., Ltd. | Lighted artificial tree with multi-terminal electrical connectors for power distribution and control |
US9671074B2 (en) | 2013-03-13 | 2017-06-06 | Willis Electric Co., Ltd. | Modular tree with trunk connectors |
US9677749B2 (en) | 2011-11-14 | 2017-06-13 | Willis Electric Co., Ltd. | Conformal power adapter for lighted artificial tree |
US9677748B1 (en) | 2013-12-03 | 2017-06-13 | Willis Electric Co., Ltd. | Dual-voltage lighted artificial tree |
US9839315B2 (en) | 2015-03-27 | 2017-12-12 | Polygroup Macau Limited (Bvi) | Multi-wire quick assemble tree |
US9843147B2 (en) | 2011-10-28 | 2017-12-12 | Polygroup Macau Limited (Bvi) | Powered tree construction |
US9883566B1 (en) | 2014-05-01 | 2018-01-30 | Willis Electric Co., Ltd. | Control of modular lighted artificial trees |
US9883706B2 (en) | 2011-05-20 | 2018-02-06 | Willis Electric Co., Ltd. | Multi-positional, locking artificial tree trunk |
US9894949B1 (en) | 2013-11-27 | 2018-02-20 | Willis Electric Co., Ltd. | Lighted artificial tree with improved electrical connections |
US10098491B2 (en) | 2013-03-13 | 2018-10-16 | Willis Electric Co., Ltd. | Modular tree with locking trunk and locking electrical connectors |
US10206530B2 (en) | 2012-05-08 | 2019-02-19 | Willis Electric Co., Ltd. | Modular tree with locking trunk |
US10440795B2 (en) | 2016-03-04 | 2019-10-08 | Polygroup Macau Limited (Bvi) | Variable multi-color LED light string and controller for an artificial tree |
US10441014B1 (en) | 2017-01-03 | 2019-10-15 | Willis Electric Co., Ltd. | Artificial tree having multiple tree portions with electrical connectors secured therein |
US10683974B1 (en) | 2017-12-11 | 2020-06-16 | Willis Electric Co., Ltd. | Decorative lighting control |
US10765244B2 (en) | 2009-07-14 | 2020-09-08 | Belgravia Wood Limited | Power pole for artificial tree apparatus with axial electrical connectors |
US10973355B2 (en) | 2009-07-14 | 2021-04-13 | Belgravia Wood Limited | Power pole for artificial tree apparatus with axial electrical connectors |
US10993572B2 (en) | 2009-07-14 | 2021-05-04 | Belgravia Wood Limited | Power pole for artificial tree apparatus with axial electrical connectors |
US11509088B2 (en) * | 2019-09-19 | 2022-11-22 | J.S.T. Corporation | Dual row low profile high voltage connector and method for assemblying thereof |
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Cited By (77)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3123427A (en) * | 1964-03-03 | Electrical connectors | ||
US2701867A (en) * | 1951-05-04 | 1955-02-08 | Arthur W Obenschain | Cable connector |
US2684401A (en) * | 1951-11-05 | 1954-07-20 | Electro Snap Switch & Mfg Co | Sealtight conduit connector |
US2722667A (en) * | 1951-11-15 | 1955-11-01 | Ohio Brass Co | Cable connectors |
US2839595A (en) * | 1952-12-12 | 1958-06-17 | Microdot Inc | Electrical connectors |
US2760172A (en) * | 1953-02-10 | 1956-08-21 | Coop Ind Inc | Electrical connectors |
US2787770A (en) * | 1953-05-29 | 1957-04-02 | Cannon Electric Co | Electric connector having pliant body portion |
US2747167A (en) * | 1954-01-04 | 1956-05-22 | Int Rectifier Corp | Plug-in mount for a circuit unit |
US2906986A (en) * | 1954-04-23 | 1959-09-29 | Edward J Schaefer | Cable connector |
US2779008A (en) * | 1955-01-31 | 1957-01-22 | Whitney Blake Co | Electrical connector having resilient insert |
US2961632A (en) * | 1956-06-28 | 1960-11-22 | Ind Engineering And Equipment | Terminal structure for electrical heating unit |
US2964725A (en) * | 1956-11-09 | 1960-12-13 | Dictograph Products Inc | Miniature plug receptacle |
US2959759A (en) * | 1957-04-10 | 1960-11-08 | Pyle National Co | Contact for electrical connector |
US3039076A (en) * | 1959-02-17 | 1962-06-12 | Aymar Julian Robert | Electrical contact |
US3125395A (en) * | 1959-04-24 | 1964-03-17 | Electrical connector | |
US3277422A (en) * | 1961-07-31 | 1966-10-04 | Itt | Electrical connector having shrouded pin contacts |
US3221292A (en) * | 1961-10-18 | 1965-11-30 | Bendix Corp | Electrical connector |
US3409864A (en) * | 1965-09-23 | 1968-11-05 | Amp Inc | Sealed electrical connecting device |
US3390369A (en) * | 1966-01-05 | 1968-06-25 | Killark Electric Mfg Company | Electric plug or receptacle assembly with interchangeable parts |
US3912351A (en) * | 1973-06-19 | 1975-10-14 | Bosch Gmbh Robert | Electrical connecting arrangement |
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