Патент USA US2082453код для вставки
June 1, 1937. . ' " H. c. KISSEL 2,032,453 ' ELECTRICAL CQNNECTER Filed Dec. '7, 1934 - 2 Sheets-Sheet 1 03PM H- E- Kfs 5 El 1 MW \ June 1, 1937-.’ ' H. c. KISSEL; ‘ 2,082,453 , I ELECTRICAL CONNECTER ' Filed mm. 7,. 1954 2 "Sheets-‘Sheet 2 ’ 2,082,453 Patented June 1, 1937 UNITED STATES PATENT OFFICE 2,082.45: 'amc'rnrcar. comma. I Howard C. KisseLGreen Bay, Wis. Application December '1, 1934, Serial in. 756,884 2 Qlaims. (01. 113-343) ' -This'invention appertains to electrical con necters, and more particularly to a novel out above character, which will be durable and ef flcient in use, one that will be simple and easy to manufacture, and one which can be placed let socket. or receptacle, and plug therefor. With the use of the customary pronged plug; ‘ upon the market at a reasonable cost. considerable diillculty is experienced in prop With these and other objects in view, the in- 5 erly alining the prongs with the socket recesses vention consists in the novel construction, ar for making the desired connection. This is par rangement andformation of parts, asl'will be . ticularly true in the night time or where the hereinafter more specifically described, claimed socket is located in the baseboard at an incon and illustrated in the accompanying drawings, venient point (such as behind articles of furni ture). . ~ 10 connected together, the socket being of the lamp , out necessitating the careful alining of conduc plus. Another object of my inventionis the provi sion of an outlet socket, or receptacle, having an improved plug and socket, showing the same base type. ' - j Figure 2 is a side ‘elevation of the improved 15 - Figure 3- is a central vertical section through the improved socket, the view being taken at right angles to Figure 1. . enlarged opening and av wide ?aring mouth, or' Figure 4 is a fragmentary side elevation of 20 entrance throat, leading to said opening, and a the base of the plug, looking at right angles from plug having a tapered inner end- for ?tting in Figure 2 and illustrating the formation of the - said opening and guided therein by the throat, having novel contacts for engagement with nov 25 elly arranged contacts in the socket. Another important object of my invention is the provision of an outlet socket, or receptacle, having an enlarged opening with bayonet slots formed in the side walls thereof, and a plug for . 30 _ Figure 1 is a longitudinal section through my Therefore, one of the salient objects of my invention is to provide an outlet socket and plug which can be quickly and conveniently coupled together and make the desired connection with _ tor prongs and recesses. 20 in which drawingsz- ?tting in the opening having lugs for reception. in the bayonet slots, .the lugs forming contacts connecter lugs carried thereby. _ Figure 5 is a top plan view of my‘novel socket, showing a part of the plug in- dotted lines. Figure 6 is a top plan view of a-socket of the ' ?ush baseboard type embodying my improve ments. , Figure 7 is a bottom shown in Figure 6. ‘ plan‘ view of the socket - 30 v Figure 8 is a central section taken subs-tan‘ for engagement with conductor membersiidiss. tially on the line‘ 1-! of Figure -6.‘ posed ‘in the slots 'for forming one connection, Referring to the drawings in detail, wherein the other connection being made/by centrally similar reference characters designate corre- \ located contacts carried respectively by the plug spending parts throughout the several views, the 35 and socket,.the provision of the bayonet slots, letter 8 generally indicates my improved socket, and lugs preventing the accidental pulling apart and the letter P the novel plug used in connec ' of the plug and socket. A further object of my invention is to provide tion therewith. - The socket 8 comprises a' porcelain or other I novel means for arranging the contacts in the insulating body l0 having an axially disposed socket, or receptacle, whereby the accidental re- > cavity, or opening. II. This cavity, or opening. ceiving of shocks is prevented, even though a person should inadvertently insert his ?nger in the opening of the socket. v . Afurther object of my invention is to pro 4o ll terminates short of the inner end of the sock et and opens out through the outer endcf the socket. If preferred, the socket can be sur rounded at its outer end by an annular ?ange 45 vide novel means for forming the plug itself, ‘ It for facilitating‘the gripping of the socket by whereby a convenient grip can be obtained there- the operator. Embedded in the inner wall of the on for facilitating the insertion and removal thereof from the socket. - \ A further object of my invention is the pro vision of novel means for leading the cord into the plug and for connecting the conductor wires thereof to the contacts carried by the plug. A still further object of my invention is to provide a quick coupling plug and socket of the body in at the axial center thereof is the cen tral contact ll, and it is to be noted that this contact is exposed both interiorly and exteriorly 50 of the socket. - In. accordance with my invention, the outer end of the opening Ii is beveled. or curved, to provide the wide ?aring entrance mouth, or throat, it, which facilitates thelguiding of the N aosaiss . plug P into the opening without undue effort on tral bore 33, through which is adapted tobe the part of the operator. from an electric iron or other electrical appliance. This central bore 33 has communicating there , The opposite sides of the socket S are provided with bayonet slots l5, and thus the inner faces of the wall Ii at diametrically opposed points are provided with vertical grooves 13 and oppo ' sitely extending arcuate grooves l1. Either one or both of the arcuate grooves l1 can be pro inserted the electric cord (not shown) leading with diverging bores 31 which open out through, the forward end of the plug body 2i between the cavities 32. ' . . Grooves 33 are formed in the outer face of the vided'with U—shaped conductor strips i3, and body and communicate with‘ the cavities 32 and threaded metallic conductor shell IS. P is gripped by the handle 34, and the plug pro iection 22 is inserted in the socket. The plug projection will be guided in place by the ?aring 20 10 with the forward ends of thediverging bores 31. 10 these strips are preferably tapered and inclined I When the electric cord is placed in the bore 33, toward one end,- for’ a purpose which will‘ be the conductor wires thereof are threaded through later- set forth. It will be noted that the inner the bores 31 and are then brought into the grooves faces of the conductor strips are covered by in 38 and into the cavities 32 and electrically‘ con sulation to prevent shocks from being inad nected with the conductor strlps.21 and 23 by 15 ' ‘ 15 vertently received. the screws 33 heretofore mentioned. As the socket S is of the lamp base type, the In use of my novel plug and socket, the‘ plug. outer ‘face thereof has rigidly secured thereto the A drop of solder or the like 20 is employed for electri 20 cally. and rigidly connecting the shell with the U-shaped conductor strip ‘l8. - From the description so far, it can be seen that mouth, and the. terminals of~ the conductor rod 24 will strike this mouth and the plug can be the socket is provided with'a centrally disposed ~ rotated until the terminals of the conductor rod conductor, or button, l3 and a side conductor IS. ride into the longitudinal grooves IS of the bayo The improved plug ‘P is also formed from porce 25 The plug isnow pushed all the wavinto the net lain or other insulating material, and includes a main body 2i having, formed thereon the for wardly extending, axially disposed'plug projec tion proper 22. The diameter of the plug pro 30 jection 22 is the same as, or slightly less than ‘the interior diameter of the socket S, and the plug projection is adapted to ?t within the open ing ll. ‘ , . As is clearly shown in Figure 1 of the draw 35 ings, the insertion of'the plug projection in the opening is considerably facilitated byv the ?aring guide mouth l4. If desired, the plug P at the juncture of the body 2i and the plug projection 22 can be shaped, as at 23, to fit in said ?aring 40 mouth when the plug and socket are coupled, so as to completely close the opening. ~ Extending diametrically through the plug pro jection 22 at a point intermediate its ends is a conductor rod 24. Theterminals of the conduc tor rod. 24 are extended a material distance be yond the opposite sides of the plug projection, so ‘as to form connecter lugs 25. ’ ' By referring to Figure 4 ofithe drawings, it ‘will be noted that theinner, or rear, face of the 50 lugs are beveled, as' at 26, so as to form a sub stantially wedge-shaped structure for reception in the tapered arcuate ways i1 formed in the socket. ' slots. " ~- . _ socket and is again turned, so as to move the con necter lugs, or terminals, of the conductor rod 24 into the arcuate ways I‘! of the bayonet slots. Obviously, the conductor strip 23 electrically con tacts with the button l3, and the conductor strip 20 through the medium of the conductor rod 24 electrically connects with the shell l3 throughv the conductor strip I3 andthe solder 23. Due to the inclined shape of the. ways and the U‘-shaped conductor strips i3, and the beveled faces of the lugs 23, a wedging action will be had, which will effectively couple the plug and ' socket together. This wedging action or in clined plane principle will take up any play caused 40 by wear, and will always keep the contacts tight and prevent sparking and heating. This type of coupling positively prevents the accidental un coupling of the plug and socket. ' Obviously, the plug can be quickly and easily 45 removed by grasping the handle 34 and rotating the same in a reverse direction until the terminals of thelconductor rod again aline with the longi tudinal grooves l3 of the bayonet slots, at which time the outward pull on the plug will uncouple 50 the plug from the socket. In Figures 6, '7, and 8, I have illustrated a ?ush type of receptacle, or socket, and, as shown, , . the same includes the porcelain or other insulat ing body 43. The opposite sides of the body are 55 conductor strip 21 is electrically connected with ' cut away to form parallel fiat faces 4i to permit the convenient anchoring thereof in the base the conductor rod 24, as is clearly shown in Fig ure 1 of the drawings. The forward end of the board and cover plates. Molded in the bottom. of the plug P are con 55 ductor strips 21 and23. The forward end of the conductor strip 23 is extended exterlorly of‘ the _ The body 43 is provided with the axially ex tending opening 42, the outer end of which is plug projection'22 at its axial center, as indi curved to provide the ?aring entrance mouth, cated by the reference character 23, for engage- ‘ vor guide throat, 43. The side walls of the open ment with the central contact, or‘ button, l3. The inner ends of the conductor strips Hand ing are provided with the bayonet slots 44, and 23 are extended laterally to provide attaching anchored in one or both of the curved portions 65 feet 33 and 3i respectively, and, the plug body of the slots is the U-shaped conductor 45. ' [65 Attached to the inner face of the body is a con- _' is formed with openings 32 to permit access to be had to said feet. Binding screws 33 are threaded through the feet and auto the plug body . _ .70‘ ductor plate 43 which is adapted to be engaged ‘ by the central contact of the plug. As shown, a. binding screw 41 is carried by the plate 43 to per-, to permit the attaching of_ conductor wires mit one of the house line wires to be connected 70 ' ‘ The inner end of the plug .body is formed with therewith. vl'i- similar ‘binding screw 43 is pro a transversely extending hand grip 34 which can vided for the other house line wire, and this screw have its opposite sides corrugated or otherwise 'Iis carrled by the conductor strip 43, which. can be molded in_ the socket, and which is'electrically treated, as at 35, to facilitate the gripping there connected'with ubshaped conductor strip". 76 of. This hand grip 34 is provided with a cen 3,? _ 9,082,458 A ‘ ~ 55 is formed on the inner face of the -- between the conductors 48 and 49, so as to w‘ pvent the contacting of the line wires when the same are secured to the binding screws. This ‘socket is very similar to the socket shown in Figures 1, 3, and 5, and the plug? is inserted therein in the same manner. - With my type of plug and socket, no shock can be received by inserting a ?nger or tool in: the 10V receptacle, or socket, even when standing on a peri'ect ground, due to the fact that the neutral wire goes to the central terminal, and live wire to the contact in the arcuate way ill, and the iace of this contact is covered by insulating ma 15 terial. ' ' - Obviously, the principles of my invention apply to all types of receptacles, or sockets, with which the plug can belused, and the sockets, or re ceptacles, can be made in multiple without de 20 parting fronrthe invention. mit the convenient ‘and quick coupling of these members together. - x — v Changes in details may be made without de parting from the spirit or the scope’of my in vention, but what I claim as new is:— ' 1. In a separable electrical connectcr, a socket. or receptacle, including a body of insulation having a central opening therein,- a central con _ tact for the body,the.opposite sides of the wall 10 of the opening being provided with bayonet slots, a threaded metallic shell ?tted on the outer face of the body, a lirshaped conductor strip em bedded in one of the bayonet slots and having electrical connection with the shell, a plug for 15. movement into and out of the opening at the will of the operator, an axially disposed contact on the plug for engagement with the axial contact of the body, and a conductor bar extending di \ ametrically through the plug having its terminals protruding beyond the plug'for detachable recep Particular attention is invited to the fact that there are no moving parts in either the plug or 20 tion in the bayonet slots and in electrical en socket with the exception of the terminal screws; and that the connection between the plug and 25 the socket, or receptacle, is not dependent upon springs and the like. durable form of plug and socket, which will per- I gagement with the U-shaped conductor strip. 2. In an electrical connector, a socket, 'or re- ' ceptacle, including a body of insulation having a a central opening therein, an axial contact for The entire assembly of both the plug and socket, or receptacle, are of one piece molded, and are not various stampings pressed together 30 and inserted in insulated cores, the body, the opposite sides of the wall of the opening__being provided with bayonet slots, a threaded metallic shell ?tted on the outer face of- the body, a U-shaped conductor strip em Stress is again laid on the novel means em bedded in one of the bayonet slots and having ployed for uniting the socket, or receptacle, and electrical connection with the shell, a plug for the plug together. The pitch of the inclined ways movement into'the opening, an axially disposed ii and the tapered terminals ‘of the conductor contact on the plug for engagement with the axial contact of the body, and a conductor bar bar 26 form, substantially, a, screw thread con nection which holds the parts tight and takes up anyplay due to wear and the like. Obviously, as the plug is inserted and turned, the same is fed inwardly, insuring proper contact between the $0 axial conductors i8 and 29. , From the foregoing description, it can be seen that I have provided an exceptionally simple and extending diametrically through the plug having ‘ its terminals protruding beyond the plug for re ception in the bayonet slots and in electrical en easement with the U-shaped conductor strip, the U-shaped conductor strip and the terminals 40 of the conductor bar being of a wedge shape. ' HOWARD C. 15c: 88%.