US2126494A - Electric plug - Google Patents
Electric plug Download PDFInfo
- Publication number
- US2126494A US2126494A US137351A US13735137A US2126494A US 2126494 A US2126494 A US 2126494A US 137351 A US137351 A US 137351A US 13735137 A US13735137 A US 13735137A US 2126494 A US2126494 A US 2126494A
- Authority
- US
- United States
- Prior art keywords
- prongs
- legs
- electric plug
- plug
- plate
- 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
- H01R13/02—Contact members
- H01R13/20—Pins, blades, or sockets shaped, or provided with separate member, to retain co-operating parts together
-
- 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
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T24/00—Buckles, buttons, clasps, etc.
- Y10T24/13—Article holder attachable to apparel or body
- Y10T24/1321—Pencil
Definitions
- Application Aprii is, 193i, serian No. 131,351
- This invention appertains to new and useful improvements in electrical connectors and more particularly to a plug.
- the principal object of the present invention is to provide an electric plug having means whereby the same cannot become readily disconnected from the socket.
- Another important object of the invention.- is to provide an electric plug in combination with de-s tent means whereby the plug can be disconnected when the detent means is manually operated.
- the plug is so constructed that it can be disconnected witha hard pull on the cord.
- Figure 1 represents 'a longitudinal sectional view through the plug.
- Figure 2 is a section on line 2 2 of Figure l with the plate removed.
- Figure 3 is a section on line 3 3? of Figure l.
- Figure i is a perspective view of the prongs assembly.
- Figure is a perspective view of one of the prongs.
- Figure 6 is a perspective View of the closure.
- the plug consists of the hollow shell 5 of insulation having the restricted neck portion d which serves as a ll'iandleand short conduit for the cord (not shown).
- Numeral Ill denotes a closure plate held in thef open end of shell 5 by the internal circumferential rim II and this plate lll is provided with the slots I2 therein through which the prongs I3 extend.
- These prongs each consist of an elongated spring wire member bent to provide the leg A and the longer leg B, each of which is serrated or otherwise roughened as at C.
- the leg A has its free end portion bent to form theeye I4 and further formed to define a second eye at I5;
- a rivet I6 is employed and disposed through each of the eyes I5 for securing the prongs I3 to the partition] and binding screws I9 for the conductor wires (not shown) arc disposed through the eyes I4 and into .the partition l. p
- the eyes I4--I5 are disposed from the leg A in such a manner as to support the leg A- in such a position as to be substantially at right angles to the planeof the partition 'I' while the leg B is diverged inwardly of the leg A and is bent laterally at its free end to provide the lug I1.
- the legs B-B extend through the openings 8 5 of the partition 'l and bear against the 4cross member EB of the slider i9, the reduced portion of which slides through an opening 20 in the side of the shell 5. Lugs 2I-2I at the ends of the cross member Id prevent displacement of the legs B-B from the head I8. Furthermore, the tension of the legs B-B serve to normallyA 'urge the cross member IB snugly against the inside of the shell 5.
- the plug can be connested with a socket by disposing the prongs ⁇ I3 into the openings of the socket.
- the legs B will contract under tension toward the legs A and it is practically impossible to remove the plug easily unless the slider it is forced inwardly to further press the legs B.B towards the legs A.
- this 'action of the slider is executed the prongs of the plugY can readily be removed from the socket.
- An electric plug comprising a hollow shell, a transversely disposed plate of insulation in the shell, said plate having a. centralized opening therein, a pair of lll-shaped spring prongs, each ofthe said prongs having one of its legs longer than the other, the shorter legs of -the prongs being secured to the outside of the said plate, the longer legs extending Ythrough the centralized opening and provided with lateral short.
- An electric plug comprising a hollow shell, a transversely disposed plate of insulation in the shell, said plate having. a centralized opening therein, a pair of U-shaped spring prongs, each of the said prongs having one of its legs longer than the other, the shorter legs of the prongs having a. broad inner end portion for abutment with the longer leg members of the U-shaped prongs at a point between the inner side ot the plate and the lateral formations ot the longer legs, the broad end portion of the slider being provided with narrow transversely spaced extensions between which the said slider.
Description
Aug. 9, 1938. l. L. MEANS 2,126,494
` ELECTRIC PLUG Filed April 16, 1957 2 sneetsheez 1 Aug 9, 1938. l. l.. MEANS 2,126,494 y ELECTRIC PLUG- Filed Agsril 16, 1937 2 Sheets-Sheet 2 forneys By? i Patented Aug. 9, 193s ELECTRIC PLUG Irvin L. Means, Waukegan, lll., assigner of onehalf to Adolph Gerlich, Waukegan, lll.
Application Aprii is, 193i, serian No. 131,351
This invention appertains to new and useful improvements in electrical connectors and more particularly to a plug.
The principal object of the present invention is to provide an electric plug having means whereby the same cannot become readily disconnected from the socket.
Another important object of the invention.- is to provide an electric plug in combination with de-s tent means whereby the plug can be disconnected when the detent means is manually operated. As a safety measure, the plug is so constructed that it can be disconnected witha hard pull on the cord. y
These and various other important objects and advantages of the invention will become appar-J ent to the reader of the following specification.
In the drawings: k
Figure 1 represents 'a longitudinal sectional view through the plug.
Figure 2 is a section on line 2 2 of Figure l with the plate removed.
' Figure 3 is a section on line 3 3? of Figure l.
Figure i is a perspective view of the prongs assembly.
Figure is a perspective view of one of the prongs. Y
Figure 6 is a perspective View of the closure.
Referring in the drawings wherein like numerals designate like parts, it can be seen that the plug consists of the hollow shell 5 of insulation having the restricted neck portion d which serves as a ll'iandleand short conduit for the cord (not shown).
Situated in the shell 5 is the transversely disposed partition l having the centralI opening d through which the conductor wires extend to the binding screws 9 9. Numeral Ill denotes a closure plate held in thef open end of shell 5 by the internal circumferential rim II and this plate lll is provided with the slots I2 therein through which the prongs I3 extend. These prongs each consist of an elongated spring wire member bent to provide the leg A and the longer leg B, each of which is serrated or otherwise roughened as at C. The leg A has its free end portion bent to form theeye I4 and further formed to define a second eye at I5; A rivet I6 is employed and disposed through each of the eyes I5 for securing the prongs I3 to the partition] and binding screws I9 for the conductor wires (not shown) arc disposed through the eyes I4 and into .the partition l. p
The eyes I4--I5 are disposed from the leg A in such a manner as to support the leg A- in such a position as to be substantially at right angles to the planeof the partition 'I' while the leg B is diverged inwardly of the leg A and is bent laterally at its free end to provide the lug I1.
The legs B-B extend through the openings 8 5 of the partition 'l and bear against the 4cross member EB of the slider i9, the reduced portion of which slides through an opening 20 in the side of the shell 5. Lugs 2I-2I at the ends of the cross member Id prevent displacement of the legs B-B from the head I8. Furthermore, the tension of the legs B-B serve to normallyA 'urge the cross member IB snugly against the inside of the shell 5.
It can now be seen, that the plug can be connested with a socket by disposing the prongs `I3 into the openings of the socket. The legs B will contract under tension toward the legs A and it is practically impossible to remove the plug easily unless the slider it is forced inwardly to further press the legs B.B towards the legs A. When this 'action of the slider is executed the prongs of the plugY can readily be removed from the socket.
While the -foregoing specification sets forth the invention in specic terms, it is to be understood that numerous changes in the' shape, size and materials may be resorted to without departing from the spirit and scope of the invention as claimed hereinafter. 30
Having thus described the invention, what is claimed as new is:
L An electric plug comprising a hollow shell, a transversely disposed plate of insulation in the shell, said plate having a. centralized opening therein, a pair of lll-shaped spring prongs, each ofthe said prongs having one of its legs longer than the other, the shorter legs of -the prongs being secured to the outside of the said plate, the longer legs extending Ythrough the centralized opening and provided with lateral short. forma.- tions at their free ends in close spaced relation to the inner side of said plate, a slider extending through a slot in the wall of the shell, said slider having a broad inner end portion for abutment with thel longer leg members of the U-shaped prongs at a point between the innerside of the plate and the lateral formations of the longer legs. v
2. An electric plug comprising a hollow shell, a transversely disposed plate of insulation in the shell, said plate having. a centralized opening therein, a pair of U-shaped spring prongs, each of the said prongs having one of its legs longer than the other, the shorter legs of the prongs having a. broad inner end portion for abutment with the longer leg members of the U-shaped prongs at a point between the inner side ot the plate and the lateral formations ot the longer legs, the broad end portion of the slider being provided with narrow transversely spaced extensions between which the said slider.
IRVIN L. MEANS.
prongs abut the 5
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US137351A US2126494A (en) | 1937-04-16 | 1937-04-16 | Electric plug |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US137351A US2126494A (en) | 1937-04-16 | 1937-04-16 | Electric plug |
Publications (1)
Publication Number | Publication Date |
---|---|
US2126494A true US2126494A (en) | 1938-08-09 |
Family
ID=22477018
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US137351A Expired - Lifetime US2126494A (en) | 1937-04-16 | 1937-04-16 | Electric plug |
Country Status (1)
Country | Link |
---|---|
US (1) | US2126494A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2452967A (en) * | 1944-12-29 | 1948-11-02 | Orrin H Thomas | Connector plug |
US2474454A (en) * | 1947-02-01 | 1949-06-28 | Ralph L Avery | Electrical plug |
US2493457A (en) * | 1944-10-06 | 1950-01-03 | Kenure John Francis | Plug and socket connection |
US3683316A (en) * | 1970-12-18 | 1972-08-08 | Switches Inc | Electrical terminal |
-
1937
- 1937-04-16 US US137351A patent/US2126494A/en not_active Expired - Lifetime
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2493457A (en) * | 1944-10-06 | 1950-01-03 | Kenure John Francis | Plug and socket connection |
US2452967A (en) * | 1944-12-29 | 1948-11-02 | Orrin H Thomas | Connector plug |
US2474454A (en) * | 1947-02-01 | 1949-06-28 | Ralph L Avery | Electrical plug |
US3683316A (en) * | 1970-12-18 | 1972-08-08 | Switches Inc | Electrical terminal |
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