US1908997A - Receptacle for electric plugs - Google Patents
Receptacle for electric plugs Download PDFInfo
- Publication number
- US1908997A US1908997A US305367A US30536728A US1908997A US 1908997 A US1908997 A US 1908997A US 305367 A US305367 A US 305367A US 30536728 A US30536728 A US 30536728A US 1908997 A US1908997 A US 1908997A
- Authority
- US
- United States
- Prior art keywords
- plug
- receptacle
- electric
- sockets
- electric plugs
- 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
Links
Images
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
- H01R13/629—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances
- H01R13/631—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances for engagement only
Landscapes
- Connector Housings Or Holding Contact Members (AREA)
Description
B. F. MULDOON 1,908,997
RECEPTACLE FOR ELECTRIC PLUGS Fi led Sept, 12, 1928 mmuunmfluiilm: 1
Ill/(39510111111.
MJ INVENTOR BY W jut-LP ATTCRNEYS Patented May 16, 1933 UNITED STATES PATENT, OFFICE BERNARD F. MULDOON, F MOUNTAINVIEW, NEW JERSEY, ASSIGNOR TO HENRY HYMAN, OF BROOKLYN, YORK RECEPTACLE FOR. ELECTRIC PLUGS Application filed September 12 1928. Serial No. 305,367.
This invention relates to areceptacle for an electric plug that is suitable for a single socket of a plurality of sockets. Heretofore, it has been found that when a. plug for an electric socket h. ving terminal blades is inserted in the socket there is suflicient friction between the blade contacts and the socket contacts to render it difiicultto remove the plug from the socket. The rounded surface of the cap of the plug does not afford a convenient gripping surface, and therefore the fingers are apt to slip off when it is attempted to remove the plug by grasping the top of the plug. As a result the user in attempting to remove the plug grasps the cord leading to the plug and jerks the plug out with the result that the wires are often pulled off of the binding screws and the electrical connection is broken.
By the present invention the receptacle is provided with sockets having the faces thereof projecting short distances beyond the face of the receptacle and the projecting portions of the sockets are made of such shapes or di- F mensions that an edge of the end of the plug cap extends laterally beyond the edge of the extension on the sockets, thereby affording a surface behind which the fingers of the user may be inserted to a slight extent to prevent the fingers from slipping olf when attempt is made to remove the plug. It is not necessary for this purpose to have the extension-of the sockets proj cot outwardly beyond the face of the receptacle far enough to make the same unsightly or cause danger of the projecting portion to be broken off.
The invention will be understood from the description in connection with the accompanying drawing in which Fig. 1 is a front view of the device, and Fig. 2 is an end View of the same.
In the drawing reference character 1 indicates the face plate of an electric plug receptacle of a well known type that may be provided with one or more insulating sockets 2, two of the same being shown in the illustrative embodiment of the invention, although a different number may be used. The sockets 2 are provided with the usual holes 3 for renor by means of screws, the blades 7 being ceiving the blade contacts of an electric cord plug.
The'front or visible ends of the sockets 2 are extended, as indicated at it, a short distance beyond the face plate 1. It has been found that about one-quarter of an inch is adequate for this purpose. The holes 3, of course, pass through the extensions 4 as well as into the sockets 2. The extensions 4 may be made circular or oval, or of other shapes.
An electric light'cord is indicated at 5, to the end of which the plug cap 6 is attached with the electric wires in the cord 5 connected to blades 7 in the plug in the well known manspaced apart to be inserted into the holes 3 in the sockets 2. The end of the cap of the plug 6, as indicated at 8, is of such a diameter that the edges of the same project beyond the edges of the extensions 4 so that the fingers of the user can obtain a grip at the end of the plug cap for withdrawing the same without pulling upon thecord 5.
The end of the cap 6 can be made to extend laterally beyond the edges of the extension 4 by having the two of different diameters or by providing notches or recesses in the extensions 4 or in any other convenient manner.
I claim:
In combination, an electric plug receptacle having an extension on the face thereof and an electric plug therefor having the end thereof extending laterally beyond said extension, the axial length of said extension being sufficient to provide a gripping space for lingers of human beings between said plug receptacle and said laterally extending end of said electric plug.
BERNARD F. MULDOON.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US305367A US1908997A (en) | 1928-09-12 | 1928-09-12 | Receptacle for electric plugs |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US305367A US1908997A (en) | 1928-09-12 | 1928-09-12 | Receptacle for electric plugs |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US1908997A true US1908997A (en) | 1933-05-16 |
Family
ID=23180503
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US305367A Expired - Lifetime US1908997A (en) | 1928-09-12 | 1928-09-12 | Receptacle for electric plugs |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US1908997A (en) |
-
1928
- 1928-09-12 US US305367A patent/US1908997A/en not_active Expired - Lifetime
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US2673968A (en) | Self-piercing electrical connector plug | |
| US2636069A (en) | Pin-tap lamp socket | |
| US3926494A (en) | Safety electrical male plug having normally recessed manually extendable contacts | |
| GB702868A (en) | Improvements in or relating to electrical socket outlets | |
| US2030115A (en) | Electric plug | |
| US2750571A (en) | Connector | |
| US1956018A (en) | Electric safety plug | |
| US2709246A (en) | Connectors for lamp cords | |
| US2966651A (en) | Three to two-wire plug adapter with grounding pigtail | |
| US1749623A (en) | Plug attachment | |
| US2739291A (en) | Electric lamp socket having insulation piercing means for contacting conductors | |
| US2027853A (en) | Plug connecter | |
| US1908997A (en) | Receptacle for electric plugs | |
| US1976501A (en) | Electric plug | |
| US2564159A (en) | Electric plug connector | |
| US2920304A (en) | Locking electrical cap and connector | |
| US2256716A (en) | Fuse for outlet connections | |
| US2012627A (en) | Electrical connecter plug | |
| US2424405A (en) | Stage plug | |
| US1988725A (en) | Electrical conductor terminal cap | |
| US1961484A (en) | Electric plug construction | |
| US1904691A (en) | Attachment plug | |
| US2060115A (en) | Electrical connecter | |
| US1974297A (en) | Attachment plug cap | |
| US2145596A (en) | Attachment plug |