US2030115A - Electric plug - Google Patents
Electric plug Download PDFInfo
- Publication number
- US2030115A US2030115A US360566A US36056629A US2030115A US 2030115 A US2030115 A US 2030115A US 360566 A US360566 A US 360566A US 36056629 A US36056629 A US 36056629A US 2030115 A US2030115 A US 2030115A
- Authority
- US
- United States
- Prior art keywords
- cap
- ring
- plug
- terminals
- electric
- 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
- H01R13/629—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances
- H01R13/633—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 disengagement only
- H01R13/6335—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 disengagement only comprising a handle
Description
Feb. 11, 1936. MULDOQN 2,030,115
ELECTRIC PLUG Filed May 4, 1929 g 700 INVENTOR I MTATTORNEYJ Patented Feb. 11, 1936 UNITED STATES ELECTRIC PPUG Bernard F. Muldoon, Mountain View, N. J., assignor to Henry Hyman, Brooklyn, N. Y.
Application May 4, 1929, Serial No. 860,566
2 Claims.
This invention relates to an electric plug which can be easily withdrawn from a socket without pulling upon the electric wire that is connected to the terminals carried by the plug.
Heretofore efiorts have been made to prevent I the users from withdrawing plugs of this type from sockets by pulling upon the electric wires with the consequent danger of breaking the connections or causing short circuits by providing an extension on the side of the plug opposite the blade contacts which could be grasped by the user, or by providing an enlarged rim around the plug which could be taken hold of for the purpose of withdrawing the plug.
By the present invention a somewhat disc shaped plug of a well known type is provided with an enlarged ring through which a user can insert a finger for pulling out the plug, without exerting any tension upon the electric wire.
The invention will be understood from the description in connection withthe accompanying drawing in which Fig. l is a side view of an illustrative embodiment of the invention; and Fig. 2 is a similar view at right angles to Fig. 1.
In the drawing reference character I indicates the insulating body of a push plug of the cap type. A pair of metallic blade terminals 2 of the usual sort are shown projecting from one face of the cap I. These terminals are attached to the cap in the well known way and the ends of the electric wires 3, which pass through an opening 4 on the other side of the cap from the terminals 2, are connected to these terminals in the usual way.
A ring 5 is connected to or made integral'with the cap I. The portions of the ring 5 that are connected to the cap I may be enlarged, as indicated at 6, to give increased strength and decrease the danger of the ring becoming accidently broken off. The connections of the ring 5 to the cap I are made on opposite sides of the opening 4 through which the wires 3 pass. The ring 5 is made sufliciently large ti enable the user to 5 pass a finger through the ri g, without being interfered with by the wires 3. The wires 3 can be bent to one side or there may be suflicient room provided to allow passage of a finger between one side of the ring and the wires 3. 10
I claim:'
1. In an'electric plug, a cap of insulating material having a single opening through the center thereof, parallel blade terminals extending from the face of said cap, electric wires extendl5 ing through said opening and connected to said blade terminals, and a ring of insulating material integrally connected to said cap in two places opposite said blade terminals and lying in a plane parallel to said terminals, the insulating ma- 20 terial of which said ring is made being solid in cross section and also being enlarged where it is connected to said cap said single opening being located between the places where said ring is connected to said cap. 25
2. In an electric plug, a cap of insulating material having a single opening through the center thereof, parallel blade terminals extending from the face of said cap, electric wires extending through said opening and connected to said blade 30 terminals, and a ring of insulating material with a solid cross section integrally connected to said cap in two places opposite said blade terminals and lying in a plane parallel to said terminals, said wires enteringsaid cap through said opening located between the places where said ring is connected to said cap.
BERNARD F. MULDOON.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US360566A US2030115A (en) | 1929-05-04 | 1929-05-04 | Electric plug |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US360566A US2030115A (en) | 1929-05-04 | 1929-05-04 | Electric plug |
Publications (1)
Publication Number | Publication Date |
---|---|
US2030115A true US2030115A (en) | 1936-02-11 |
Family
ID=23418552
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US360566A Expired - Lifetime US2030115A (en) | 1929-05-04 | 1929-05-04 | Electric plug |
Country Status (1)
Country | Link |
---|---|
US (1) | US2030115A (en) |
Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2468351A (en) * | 1945-08-29 | 1949-04-26 | Chester H G Vail | Fuse |
US2507092A (en) * | 1944-12-07 | 1950-05-09 | John J Daggon | Electric plug |
US3651447A (en) * | 1970-06-29 | 1972-03-21 | Burroughs Corp | Electric device and coaxial connection |
US4857013A (en) * | 1985-12-30 | 1989-08-15 | Peters Glen R | Electric attachment plug |
US5409397A (en) * | 1993-11-15 | 1995-04-25 | Environmental Associates, Inc. | Adapter plug |
WO1995015597A1 (en) * | 1993-11-30 | 1995-06-08 | Gmp Innovations Pty. Ltd. | An adaptor for electric plugs |
US5567181A (en) * | 1994-03-23 | 1996-10-22 | Woods Industries, Inc. | Low profile electrical plug |
US6099341A (en) * | 1998-04-21 | 2000-08-08 | Shymko; Wayne W. | Female receptacle with retaining device for securing male plug to female receptacle |
WO2001026186A1 (en) * | 1999-10-07 | 2001-04-12 | Zakłady Sprzetu Instalacyjnego | Non-dismountable electrical plug connection |
US20120270435A1 (en) * | 2011-04-12 | 2012-10-25 | Jeramy Hale | Electrical safety plug with grip wings for electrical plugs and data cord plugs |
US20140099813A1 (en) * | 2012-10-08 | 2014-04-10 | Drew Sying Liu | Heavy-Duty Straight-Blade Electrical Connector with Engagement-Facilitating Features |
US11283225B2 (en) * | 2016-06-24 | 2022-03-22 | Gyrus Acmi, Inc. | Gravity plug and connector |
US11367544B2 (en) * | 2019-12-05 | 2022-06-21 | Yazaki Corporation | Grommet and wire harness |
US11705680B2 (en) | 2020-05-27 | 2023-07-18 | Drew Syingshun Liu | Wall-mounted electrical-connector-engaging assembly with quick installation features |
-
1929
- 1929-05-04 US US360566A patent/US2030115A/en not_active Expired - Lifetime
Cited By (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2507092A (en) * | 1944-12-07 | 1950-05-09 | John J Daggon | Electric plug |
US2468351A (en) * | 1945-08-29 | 1949-04-26 | Chester H G Vail | Fuse |
US3651447A (en) * | 1970-06-29 | 1972-03-21 | Burroughs Corp | Electric device and coaxial connection |
US4857013A (en) * | 1985-12-30 | 1989-08-15 | Peters Glen R | Electric attachment plug |
US5409397A (en) * | 1993-11-15 | 1995-04-25 | Environmental Associates, Inc. | Adapter plug |
WO1995015597A1 (en) * | 1993-11-30 | 1995-06-08 | Gmp Innovations Pty. Ltd. | An adaptor for electric plugs |
US5567181A (en) * | 1994-03-23 | 1996-10-22 | Woods Industries, Inc. | Low profile electrical plug |
US6099341A (en) * | 1998-04-21 | 2000-08-08 | Shymko; Wayne W. | Female receptacle with retaining device for securing male plug to female receptacle |
WO2001026186A1 (en) * | 1999-10-07 | 2001-04-12 | Zakłady Sprzetu Instalacyjnego | Non-dismountable electrical plug connection |
US20120270435A1 (en) * | 2011-04-12 | 2012-10-25 | Jeramy Hale | Electrical safety plug with grip wings for electrical plugs and data cord plugs |
US20140099813A1 (en) * | 2012-10-08 | 2014-04-10 | Drew Sying Liu | Heavy-Duty Straight-Blade Electrical Connector with Engagement-Facilitating Features |
US9136640B2 (en) * | 2012-10-08 | 2015-09-15 | Drew Sying Liu | Heavy-duty straight-blade electrical connector with engagement-facilitating features |
US11283225B2 (en) * | 2016-06-24 | 2022-03-22 | Gyrus Acmi, Inc. | Gravity plug and connector |
US11688982B2 (en) | 2016-06-24 | 2023-06-27 | Gyrus Acmi, Inc. | Gravity plug and connector |
US11367544B2 (en) * | 2019-12-05 | 2022-06-21 | Yazaki Corporation | Grommet and wire harness |
US11705680B2 (en) | 2020-05-27 | 2023-07-18 | Drew Syingshun Liu | Wall-mounted electrical-connector-engaging assembly with quick installation features |
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