US2461427A - Tension absorber - Google Patents
Tension absorber Download PDFInfo
- Publication number
- US2461427A US2461427A US653379A US65337946A US2461427A US 2461427 A US2461427 A US 2461427A US 653379 A US653379 A US 653379A US 65337946 A US65337946 A US 65337946A US 2461427 A US2461427 A US 2461427A
- Authority
- US
- United States
- Prior art keywords
- tension
- wire
- absorber
- connection
- opening
- 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
- H01R13/639—Additional means for holding or locking coupling parts together, after engagement, e.g. separate keylock, retainer strap
- H01R13/6392—Additional means for holding or locking coupling parts together, after engagement, e.g. separate keylock, retainer strap for extension cord
-
- 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
- Y10S285/00—Pipe joints or couplings
- Y10S285/902—Canted ring
-
- 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
- Y10T403/00—Joints and connections
- Y10T403/50—Bridged by diverse connector
Definitions
- My invention relates to a tension absorber and more particularly to a device adapted to be connected to flexible conduits leading to and from a connection to relieve tension on the connecf tion.
- My invention is a device which eliminates the above difficulties by detouring all shocks and strains around the electrical connection and transferring them to the wires leading to said connection, as shown in the drawings, in which:
- Figure 1 is a. side elevation of my invention
- Figure 2 is a side elevation of an electrical connection having male and female members with my invention attached thereto.
- Figure 3 is a side elevation partly in section of Figure 2 viewed from a position 90 therefrom.
- I show a side elevation of my tension absorber l. It is preferably constructed of a flexible material which is a noncoductor of electricity, and should be of suflicient length to reach from the wire leading from the male member of an electrical connection t'o the wire leading from the female member of such connection, such as shown in Figure 2.
- a length of from ve to eight inches is usually suiiicient, but I prefer a length of approxi'- mately flve and three-quarter inches for the ordinary electrical connection.
- Formed adjacent one end of the tension absorber is an opening 2, of suflicient size to receive a wire such as ordinarily found in electrical conecticns of the type shown.
- a radial slot 3 is formed on the preiphery of the opening 2. By bending the corners 4 and 5 up and down, respectively, the radial slot 3 is extended sufficiently to admit a Wire 6 to the opening 2 and releasing the corners 4 and 5 would allow them to return to position.
- a hook 1 is formed at the oppositeend of the tension absorber having therein a space 8 lopening 2.
- the male member of the electrical connection I0 is the ordinary bayonet plug Il.
- My tension absorber will be used as follows: Corners 4 and 5 are pressed upwards and down' wards, respectively to extend the slot 3, and wire 6 leading from the male member of the connection I0 is inserted in the opening 2 through the space thus formed. Upon releasing corners 4 and 5 the resiliency of the material of which the tension absorber is constructed will close the space, and the Wire 6 will be imprisoned in The bayonet plug l l Will be inserted in the female member oi the electrical connection I0. The tension absorber will then be bent around the electrical connection as shown in Figures 2 and 3, and the hook 'i' will be hooked on to the Wire 9 leading from the female member of the connection. If desired, some slack can beleft in the wire 6 (between the point where the tension absorber is attached and the male member Il) to insure that no strains upon the Wire will be transmitted to the connection. In
- tension absorber l is made of flexible material with the resilient properties so that it can be bent as shown in Figures 2 and 3, andso that the resiliency of the material will cause the tension absorber to tend to straighten, thereby frictionally engaging the hook l' and the edges of the opening 2 with the Wires 6 and 9.
- any tension on the wire tending to pull the plug II out of its socket will be transmitted by the tension absorber to the other Wire, retaining the plug in its proper position. It can also be seen that any tension .upon the wires will be detoured around the electrical connection relieving it of any strain.
- a tension absorber comprising a substantially linear fiat strip of flexible insulating material, a hook at one end of the strip engaging the conduit leading from one of the members, said hook having a bight substantially equal to the diameter of the last mentioned conduit, a circular opening at the other end of the strip with the edges of the opening engaging the conduit leading from the other member, said opening having a diameter substantially equal to the diameter of the conduit leading from the other member, a slot extending from the opening to the marginal edge of the strip, the edges of said slot being spaced apart a distance less than the diameter of the last mentioned conduit, said strip being flexed longitudinally with said hook and the edges of the opening engaging said conduits and the resiliency of said strip causing said hook and the edges of the opening frictionally to grip said conduits by virtue of the resiliency ofthe material urging the strip to return to its original linear shape.
Description
Feb. 8, 1949. f L. KNc-:EBONE TENS ION ABSORBER Filed March 9, 1946 Y lli" Patented Feb. 8, 1949 UN ITED PATE N T 0 FFI CE s 'TENSIN ABSRBER Lincoln '.Kne'ebone, Dundee, .111. lApplication lllflarch 9, 194%,"'S'erial No. 653,379
1 Claim. 1
My invention relates to a tension absorber and more particularly to a device adapted to be connected to flexible conduits leading to and from a connection to relieve tension on the connecf tion.
Electrical appliances have a multiplicity of uses, and one of the more common methods of attaching such appliances to an electrical source is by means of a bayonet plug, plugged into a female member of an electrical connection such as shown in Figures 2 and 3. Difficulty has been experienced in retaining the bayonet plug in its socket under stress produced by the wire itself, or from accidently produced tension on the wire. Such strains not only tend to pull the plug out of the socket, but also to strain the female member of the connection and to Wear the wires at the point Where they enter the connection. Strain on the connection and Wear on the Wires also occurs where the male member is of the screw-in type.
My invention is a device which eliminates the above difficulties by detouring all shocks and strains around the electrical connection and transferring them to the wires leading to said connection, as shown in the drawings, in which:
Figure 1 is a. side elevation of my invention;
Figure 2 is a side elevation of an electrical connection having male and female members with my invention attached thereto.
Figure 3 is a side elevation partly in section of Figure 2 viewed from a position 90 therefrom.
Referring to Figure 1, I show a side elevation of my tension absorber l. It is preferably constructed of a flexible material which is a noncoductor of electricity, and should be of suflicient length to reach from the wire leading from the male member of an electrical connection t'o the wire leading from the female member of such connection, such as shown in Figure 2. A length of from ve to eight inches is usually suiiicient, but I prefer a length of approxi'- mately flve and three-quarter inches for the ordinary electrical connection. Formed adjacent one end of the tension absorber is an opening 2, of suflicient size to receive a wire such as ordinarily found in electrical conecticns of the type shown. On the preiphery of the opening 2, a radial slot 3 is formed. By bending the corners 4 and 5 up and down, respectively, the radial slot 3 is extended sufficiently to admit a Wire 6 to the opening 2 and releasing the corners 4 and 5 would allow them to return to position. A hook 1 is formed at the oppositeend of the tension absorber having therein a space 8 lopening 2.
2 large enough to receive Wire 9 leading from the opposite end of the electrical conection I0. The male member of the electrical connection I0 is the ordinary bayonet plug Il.
My tension absorber will be used as follows: Corners 4 and 5 are pressed upwards and down' wards, respectively to extend the slot 3, and wire 6 leading from the male member of the connection I0 is inserted in the opening 2 through the space thus formed. Upon releasing corners 4 and 5 the resiliency of the material of which the tension absorber is constructed will close the space, and the Wire 6 will be imprisoned in The bayonet plug l l Will be inserted in the female member oi the electrical connection I0. The tension absorber will then be bent around the electrical connection as shown in Figures 2 and 3, and the hook 'i' will be hooked on to the Wire 9 leading from the female member of the connection. If desired, some slack can beleft in the wire 6 (between the point where the tension absorber is attached and the male member Il) to insure that no strains upon the Wire will be transmitted to the connection. In
- the preferred embodiment of my invention, the
tension absorber l is made of flexible material with the resilient properties so that it can be bent as shown in Figures 2 and 3, andso that the resiliency of the material will cause the tension absorber to tend to straighten, thereby frictionally engaging the hook l' and the edges of the opening 2 with the Wires 6 and 9.
It can be seen that any tension on the wire tending to pull the plug II out of its socket will be transmitted by the tension absorber to the other Wire, retaining the plug in its proper position. It can also be seen that any tension .upon the wires will be detoured around the electrical connection relieving it of any strain.
While the invention has been disclosed and described herein in a particular embodiment it is not intended that the invention is to be limited thereby to the specic disclosure made. On the contrary, it is intended to cover all modications and alternative constructions following within the spirit and scope of the invention as defined in the appended claim.
I claim:
In combination with an electrical connection having cooperating male and female members and conduits leading therefrom, a tension absorber comprising a substantially linear fiat strip of flexible insulating material, a hook at one end of the strip engaging the conduit leading from one of the members, said hook having a bight substantially equal to the diameter of the last mentioned conduit, a circular opening at the other end of the strip with the edges of the opening engaging the conduit leading from the other member, said opening having a diameter substantially equal to the diameter of the conduit leading from the other member, a slot extending from the opening to the marginal edge of the strip, the edges of said slot being spaced apart a distance less than the diameter of the last mentioned conduit, said strip being flexed longitudinally with said hook and the edges of the opening engaging said conduits and the resiliency of said strip causing said hook and the edges of the opening frictionally to grip said conduits by virtue of the resiliency ofthe material urging the strip to return to its original linear shape.
LINCOLN KNEEBONE.
REFERENCES CITED The following references are of record in the file of this patent:
UNITED STATES PATENTS Number Name Date 394,838 De Fen-anti Dee. 18, 1888 536,488 Suter Mar. 26, 1895 934,352 Pratt Sept. 14, 1909 1,514,544 Lang Nov. 4, 1924 1,665,095 Henry Apr. 3, 1928 1,677,622 Dreuil July 17, 1928 1,790,101 Kohloi Jan. 27, 1931 1,968,884 Gilbert Aug. 7, 1934 1,989,823 Raabe Feb. 5, 1935 2,219,931 Matheny Oct. 29, 1940 2,291,793 Chandler Aug. 4, 1942
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US653379A US2461427A (en) | 1946-03-09 | 1946-03-09 | Tension absorber |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US653379A US2461427A (en) | 1946-03-09 | 1946-03-09 | Tension absorber |
Publications (1)
Publication Number | Publication Date |
---|---|
US2461427A true US2461427A (en) | 1949-02-08 |
Family
ID=24620619
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US653379A Expired - Lifetime US2461427A (en) | 1946-03-09 | 1946-03-09 | Tension absorber |
Country Status (1)
Country | Link |
---|---|
US (1) | US2461427A (en) |
Cited By (31)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2703359A (en) * | 1948-06-11 | 1955-03-01 | Miller Electric Company | Electric light clamp |
US2720633A (en) * | 1953-06-12 | 1955-10-11 | Oscar E Westberg | Clamp for electrical connectors |
US2721313A (en) * | 1951-10-15 | 1955-10-18 | Harvey W English | Clips for electrical connectors |
US2725543A (en) * | 1951-05-18 | 1955-11-29 | Henry G Tanner | Coupling for electrical plug connectors |
US2761109A (en) * | 1954-01-19 | 1956-08-28 | Hacker Arnold | Safety-type clamp for electric plug and socket |
US3341228A (en) * | 1964-09-29 | 1967-09-12 | Peter F Miller | Quick-acting hose connection |
US3475716A (en) * | 1967-12-08 | 1969-10-28 | Miller Electric Co | Retainer for electric cord connectors |
US3521220A (en) * | 1968-06-10 | 1970-07-21 | Black & Decker Mfg Co | Integral plug and strain relief cord set and method of manufacture |
US3781761A (en) * | 1972-03-27 | 1973-12-25 | C Harwood | Harwood retainer |
US3859692A (en) * | 1973-06-12 | 1975-01-14 | Sherwood V Waterman | Restraint for flexible conduits |
US3953060A (en) * | 1971-09-20 | 1976-04-27 | Instrumentation Industries, Inc. | Slip-proof coupling device |
US4340244A (en) * | 1980-09-22 | 1982-07-20 | Scott Kenneth W | Clip for slip-joint tube connections |
US4773874A (en) * | 1987-08-26 | 1988-09-27 | Kopeski Jr Michael J | Power cord clip |
US4832618A (en) * | 1988-02-29 | 1989-05-23 | Gunderson Jon R | Electric cord lock |
US5179044A (en) * | 1991-11-27 | 1993-01-12 | Muromachi Paul N | Securing device for male plug/female socket connectors |
US5336106A (en) * | 1992-12-22 | 1994-08-09 | Osten Frederick F | Cord connectors |
US5423693A (en) * | 1994-05-13 | 1995-06-13 | Light; Jack W. | Electrical cord, plug and receptacle retainer and line retainer |
US5573420A (en) * | 1994-12-20 | 1996-11-12 | Grosswendt; Patrick J. | Electrical cord and electrical plug securer |
US5593312A (en) * | 1995-06-07 | 1997-01-14 | Waxing Corporation Of America, Inc. | Electrical cord lock |
US6012940A (en) * | 1998-02-20 | 2000-01-11 | Wheeler; Michael | Extension cord retaining device |
US6135803A (en) * | 1999-06-03 | 2000-10-24 | Alert Safety Lite Products Co., Inc. | Electrical plug lock |
US6234823B1 (en) * | 1999-03-29 | 2001-05-22 | Paul Martin Fuess | Plug adapter having eccentric ring driving cord retention wedge |
US6409223B1 (en) * | 1999-06-04 | 2002-06-25 | Anton Hummel Verwaltungs Gmbh | Corrugated hose with a holder |
US6612619B2 (en) * | 1999-01-05 | 2003-09-02 | Martin H. Wieder | Quick coupler retention clip and method |
US6979221B1 (en) | 2004-08-13 | 2005-12-27 | Hunter Al G | Retainer for securing two connected electrical cords |
US7081004B1 (en) | 2004-03-18 | 2006-07-25 | Michael Puzio | Bend radius friction lock system |
US20060169798A1 (en) * | 2005-02-02 | 2006-08-03 | Kowalchuk Trevor L | Hose restraint apparatus |
US7234958B1 (en) * | 2006-04-27 | 2007-06-26 | Ncr Corporation | Cable retention apparatus |
US9077111B2 (en) | 2012-08-03 | 2015-07-07 | Synapsense Corporation | Plug retention apparatus |
USD755727S1 (en) * | 2015-04-02 | 2016-05-10 | Dana Estes | Cord connection securing clip |
USD812015S1 (en) | 2016-09-30 | 2018-03-06 | Frederick E. Ryder | Extension cord connector lock |
Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US394838A (en) * | 1888-12-18 | Sebastian ziani de ferranti | ||
US536488A (en) * | 1895-03-26 | Lock and stay for wire fences | ||
US934352A (en) * | 1908-11-24 | 1909-09-14 | John Sedgwick Pratt | Line-wire connector. |
US1514544A (en) * | 1921-05-12 | 1924-11-04 | Arthur J Lang | Automatic cord adjuster |
US1665095A (en) * | 1927-01-05 | 1928-04-03 | Jesse B Henry | Electrical plug lock |
US1677622A (en) * | 1926-10-19 | 1928-07-17 | Dreuil Emile Joseph | Tool |
US1790101A (en) * | 1928-12-15 | 1931-01-27 | George Gross | Electrical connecter |
US1968884A (en) * | 1931-02-05 | 1934-08-07 | Gilbert Co A C | Conductor cord supporting and protecting means |
US1989823A (en) * | 1932-01-05 | 1935-02-05 | Herbert L Raabe | Spring clamp |
US2219931A (en) * | 1938-12-12 | 1940-10-29 | Willard R Matheny | Retainer for electrical connectors |
US2291793A (en) * | 1941-08-02 | 1942-08-04 | Ohio Brass Co | Electric connector |
-
1946
- 1946-03-09 US US653379A patent/US2461427A/en not_active Expired - Lifetime
Patent Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US394838A (en) * | 1888-12-18 | Sebastian ziani de ferranti | ||
US536488A (en) * | 1895-03-26 | Lock and stay for wire fences | ||
US934352A (en) * | 1908-11-24 | 1909-09-14 | John Sedgwick Pratt | Line-wire connector. |
US1514544A (en) * | 1921-05-12 | 1924-11-04 | Arthur J Lang | Automatic cord adjuster |
US1677622A (en) * | 1926-10-19 | 1928-07-17 | Dreuil Emile Joseph | Tool |
US1665095A (en) * | 1927-01-05 | 1928-04-03 | Jesse B Henry | Electrical plug lock |
US1790101A (en) * | 1928-12-15 | 1931-01-27 | George Gross | Electrical connecter |
US1968884A (en) * | 1931-02-05 | 1934-08-07 | Gilbert Co A C | Conductor cord supporting and protecting means |
US1989823A (en) * | 1932-01-05 | 1935-02-05 | Herbert L Raabe | Spring clamp |
US2219931A (en) * | 1938-12-12 | 1940-10-29 | Willard R Matheny | Retainer for electrical connectors |
US2291793A (en) * | 1941-08-02 | 1942-08-04 | Ohio Brass Co | Electric connector |
Cited By (34)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2703359A (en) * | 1948-06-11 | 1955-03-01 | Miller Electric Company | Electric light clamp |
US2725543A (en) * | 1951-05-18 | 1955-11-29 | Henry G Tanner | Coupling for electrical plug connectors |
US2721313A (en) * | 1951-10-15 | 1955-10-18 | Harvey W English | Clips for electrical connectors |
US2720633A (en) * | 1953-06-12 | 1955-10-11 | Oscar E Westberg | Clamp for electrical connectors |
US2761109A (en) * | 1954-01-19 | 1956-08-28 | Hacker Arnold | Safety-type clamp for electric plug and socket |
US3341228A (en) * | 1964-09-29 | 1967-09-12 | Peter F Miller | Quick-acting hose connection |
US3475716A (en) * | 1967-12-08 | 1969-10-28 | Miller Electric Co | Retainer for electric cord connectors |
US3521220A (en) * | 1968-06-10 | 1970-07-21 | Black & Decker Mfg Co | Integral plug and strain relief cord set and method of manufacture |
US3953060A (en) * | 1971-09-20 | 1976-04-27 | Instrumentation Industries, Inc. | Slip-proof coupling device |
US3781761A (en) * | 1972-03-27 | 1973-12-25 | C Harwood | Harwood retainer |
US3859692A (en) * | 1973-06-12 | 1975-01-14 | Sherwood V Waterman | Restraint for flexible conduits |
US4340244A (en) * | 1980-09-22 | 1982-07-20 | Scott Kenneth W | Clip for slip-joint tube connections |
US4773874A (en) * | 1987-08-26 | 1988-09-27 | Kopeski Jr Michael J | Power cord clip |
US4832618A (en) * | 1988-02-29 | 1989-05-23 | Gunderson Jon R | Electric cord lock |
US5179044A (en) * | 1991-11-27 | 1993-01-12 | Muromachi Paul N | Securing device for male plug/female socket connectors |
US5336106A (en) * | 1992-12-22 | 1994-08-09 | Osten Frederick F | Cord connectors |
US5423693A (en) * | 1994-05-13 | 1995-06-13 | Light; Jack W. | Electrical cord, plug and receptacle retainer and line retainer |
US5573420A (en) * | 1994-12-20 | 1996-11-12 | Grosswendt; Patrick J. | Electrical cord and electrical plug securer |
US5593312A (en) * | 1995-06-07 | 1997-01-14 | Waxing Corporation Of America, Inc. | Electrical cord lock |
US6012940A (en) * | 1998-02-20 | 2000-01-11 | Wheeler; Michael | Extension cord retaining device |
US6612619B2 (en) * | 1999-01-05 | 2003-09-02 | Martin H. Wieder | Quick coupler retention clip and method |
US6234823B1 (en) * | 1999-03-29 | 2001-05-22 | Paul Martin Fuess | Plug adapter having eccentric ring driving cord retention wedge |
US6135803A (en) * | 1999-06-03 | 2000-10-24 | Alert Safety Lite Products Co., Inc. | Electrical plug lock |
US6409223B1 (en) * | 1999-06-04 | 2002-06-25 | Anton Hummel Verwaltungs Gmbh | Corrugated hose with a holder |
US7081004B1 (en) | 2004-03-18 | 2006-07-25 | Michael Puzio | Bend radius friction lock system |
US6979221B1 (en) | 2004-08-13 | 2005-12-27 | Hunter Al G | Retainer for securing two connected electrical cords |
US20060169798A1 (en) * | 2005-02-02 | 2006-08-03 | Kowalchuk Trevor L | Hose restraint apparatus |
US7264423B2 (en) | 2005-02-02 | 2007-09-04 | Cnh Canada, Ltd. | Hose restraint apparatus |
US20080017731A1 (en) * | 2005-02-02 | 2008-01-24 | Cnh Canada, Ltd. | Hose Restraint Apparatus |
US20080017730A1 (en) * | 2005-02-02 | 2008-01-24 | Cnh Canada, Ltd. | Hose Restraint Apparatus |
US7234958B1 (en) * | 2006-04-27 | 2007-06-26 | Ncr Corporation | Cable retention apparatus |
US9077111B2 (en) | 2012-08-03 | 2015-07-07 | Synapsense Corporation | Plug retention apparatus |
USD755727S1 (en) * | 2015-04-02 | 2016-05-10 | Dana Estes | Cord connection securing clip |
USD812015S1 (en) | 2016-09-30 | 2018-03-06 | Frederick E. Ryder | Extension cord connector lock |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US2461427A (en) | Tension absorber | |
US2231001A (en) | Carrier for slack in electrical cord conductors | |
US1830250A (en) | Outlet box fitting | |
ES320757A1 (en) | An electric female plug device. (Machine-translation by Google Translate, not legally binding) | |
US2724736A (en) | Spring type strain-relief bushing | |
DE1917503B2 (en) | Screw-less cable terminal clip - with spring clip with aperture which loops over a rigid contact bar | |
US1946713A (en) | Cable terminal | |
US2721313A (en) | Clips for electrical connectors | |
US2171331A (en) | Electric cord assembly for vacuum cleaners or the like | |
US2743428A (en) | Electrical contact element for receiving a male pin | |
US1933304A (en) | Connecter | |
US2750571A (en) | Connector | |
US2873435A (en) | Stripless wiring for electrical wiring devices | |
US2174811A (en) | Connector | |
US2232580A (en) | Housing for electric extension cords | |
GB248565A (en) | Improvements in or relating to plug and socket connectors and the like | |
US2530360A (en) | Light bulb support comprising a ring having a plurality of fingers extending forwardly and rearwardly of the ring | |
US2458413A (en) | Wire connector | |
GB1238562A (en) | ||
US2563561A (en) | Multiple connector plug | |
US1771729A (en) | Interlocking plug and cap | |
US2869096A (en) | Finger pull wall plug | |
ES363477A1 (en) | Housings for Electrical Connectors | |
US2047094A (en) | Flexible attachment plug cap with strain relief | |
US2787772A (en) | Electric connector |