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Publication numberUS2934590 A
Publication typeGrant
Publication dateApr 26, 1960
Filing dateAug 29, 1958
Priority dateAug 29, 1958
Publication numberUS 2934590 A, US 2934590A, US-A-2934590, US2934590 A, US2934590A
InventorsLoos Jr Charles, Thompson Harry B
Original AssigneeLoos Jr Charles, Thompson Harry B
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Electric outlet receptacle
US 2934590 A
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Description  (OCR text may contain errors)

April 26, 1960 H. B. THOMPSON ETAL 2,934,590

ELECTRIC OUTLET EECEPTACLE Filed Aug. 29, 195e INVENTORS HARRY B.`THOMPSOI-I .DTT T O 2N EYS ELECTRIC OUTLET RECEPTACLE Harry B. Thompson, Morton, and Charles Loos, Jr.,

. East Peoria, Ill.

Application August 29, 1958, Serial No. 757,950

1 Claim. (Cl. 174-53) This invention relates to electrical receptacles, and more particularly to an electrical outlet receptacleadapted to be installed without requiring the use of screws or similar fasteners.

A main object of the invention is to provide a novel and improved electrical outlet receptacle which is simple in construction, which is very easy to install, and which is inexpensive to manufacture.

A further object of the invention is to provide an improved electrical outlet receptacle adapted to be mounted in an outlet box, the mounting of the receptacle requiring no screws or other fastenings, the receptacle being durable in construction, and the installation of the receptacle being accomplished rapidly, with a minimum of labor, and without requiring the use of other than the simplest of tools.

Further objects and advantages of the instant invention will become apparent from the following description and claim, and from the accompanying drawings, wherein:

Figure l is a fragmentary perspective view of a portion of a wall in which is installed an improved electrical outlet receptacle according to the present invention.

Figure 2 is a vertical cross-sectional view taken on the line 2--2 of Figure 1.

Figure 3 is a perspective view of the assembly illustrated in Figures 1 and 2 with the parts thereof shown in separated positions.

Referring to the drawings, 11 designates a conventional 4outlet box which is secured in a stationary position in the usual manner with its open forward end portion extending through and terminating llush with a wall 12. Thus, the wall 12 is formed with a rectangular aperture 13 which receives the open forward end of the outlet box 11. The outlet box 11 is fastened in any suitable manner to portions of the framing of the wall so that 4it is securely supported in a stationary position.

The outlet box 11 is provided with the horizontal top yand bottom walls 14 and 15 which are formed at the intermediate portions of their forward edges with rectangular notches 16 and 17 and with respective slots 18 and 19 extending parallel to the forward edges of the top and bottom walls 14 and 15.

Designated at 20 is the main receptacle assembly which is generally conventional in construction and which is provided with the top and bottom resilient fastening clips 21 and 22. The -top clip 21 comprises a two-ply body of resilient sheet metal which is formed to deiine the opposing top and bottom arms 23 and 24, the bottom arm 24 being fastened at its forward end to the forward end of the top arm 25 of a generally U-shaped rigid metal bracket 26 secured to and receiving the main double- Unted States Patffo socket receptacle assembly 20. Thus, the bracket 26 is ICC formed in the bight member of the bracket 26. The bracket member 26 is thus rigidly secured to the main receptacle body 20 with the top arm 25 of the bracket member located closely adjacent the top surface of body 20 and with the bottom arm 31 of said bracket member located adjacent to the bottom surface of body 20.

The clip 21 is formed with the generally diamondshaped inner loop 32, merging with bottom arm' 24 and top arm 23 of said clip 21. The top arm 23 is formed at its free end with the upstanding catch lug 33 which is dimensioned to be received in the slot 18 in the top wall 14 of outlet box 11, as will be presently described. The bottom clip 22 is similar in construction to the top clip 21 but has its top arm secured to the forward end portion of the bottom arm 31 of bracket 26 and is provided on ther free end of its bottom arm with a depending lug 34 dimensioned to be received in the bottom slot 19 of the outlet box 11.

As will be apparent from Figures l and 3, the lugs 33 'and 34 are substantially less in width than the clips 21 and 22, the width of said clips being such that said clips are respectively receivable in the notches 16 and 17 during the installation of the receptacle '20, as will be presently described.

The bottom clip 22 is provided with the generally damond-shaped inner end loop 35, similar to the inner end loop 32 of the top clip 21. The receptacle 20 may be easily installed in the outlet box 11 by engaging the clips 23 and 22 respectively in the notches 16 and 17 and first elevating the bottom arm of clip 22 suiciently to engage lug 34 in the slot 19. Subsequently, the body 20 may be rotated inwardly with the top arm of clip 21 depressed suliiciently to allow the upstanding lug 33 to be inserted in the slot 18, whereby the body 20 will be retained in the outlet box in the position thereof illustrated in Figure 2.

Designated at 36 is a cover plate formed with respective apertures 37 and 38 adapted to receive the respective receptacle projections 39 and 40 of the body 20. Secured to the rear surface of cover plate 30 above the receptacle-receiving aperture 37 is a bracket member 39 having the spring arm 40 formed with the resilient upwardly and forwardly inclined leaf element 41 and formed with the folded and upwardly and inwardly inclined inner end portion 42. A similar bracket 43 is secured to the rear surface of plate 36 adjacent the bottom edge portion of the lower aperture 38, the bracket 43 being provided with a horizontally extending arm 44 and the resilient leaf element 45, inclined downwardly and toward the plate 36, being connected to the arm 44 by the downwardly and inwardly inclined end portion 47 which is divergently directed relative to the upwardly and inwardly inclined end portion 42 of top arm 40.

The arms 40 and 44 are spaced apart to be received in the clips 21 and 22, with the inner ends 42 and 47 of the arms lockingly engageable in the respective loops 21 and 22. Thus, in mounting the plate, the arms 40 and 44 are inserted in the clips 21 and 22 and the plate is pushed inwardly until the inclined detent elements 42 and 47 lockingly engage in the fastening loops 32 and 35 in the manner illustrated in Figure 2.

As will be readily apparent from Figure 2, the resilient clips 21 and 22 exert a clamping force on the respective supporting arms 40 and 44 and clampingly engage said supporting arms at the inclined detent elements 42 and 47, with the leaf elements 41 and 45 resiliently engaging the respective top and bottom arms of the clip members 21 and 22 in frictional binding contact therewith. The plate member 36 is thus secured with the edge of its peripheral ange 50 substantially in abutment with the outer surface of wall 12 and with the socket projections 39' and 40' extending through the apertures 37 and 38 in the manner illustrated in Figures 1 and 2.

The plate 36 may be easily removed, whenever required, by inserting a screw driver between the flange 50 and wall 12 and exerting a prying force on said ange, whereby to pull the arms 40 and 44 outwardly from the fastening clips 21 and 22.

While a specic embodiment of an improved electrical receptacle assembly has been disclosed in the foregoing description, it will be understood that various modifications within the spirit of the invention may occur to those skilled in the art. Therefore it is intended that no limitations be placed on the invention except as dened by the scope of the appended claim.

What is claimed is:

IIn an electrical receptacle assembly, an outlet box having top and bottom walls, said top and bottom walls being formed with slots adjacent and parallel to the forward edges of said top and bottom walls, a main receptacle body, respective forwardly facing, generally U-shaped spring clips disposed adjacent the top and bottom of said body, each clip having a constricted inner end loop portion, means securing one arm of the spring clips respectively to the top and bottom of the body, whereby the other arm is'free to ex outwardly, respective outwardly projecting, substantially vertical lugs on said free other arms of the clips lockingly engageable in the slots in said top and bottom walls, a cover plate engageable over said main receptacle body, respective inwardly projecting arms on said cover plate lockingly receivable in said spring clips, and divergent inclined detent elements on the ends of said inwardly projecting arms clampingly engageable in said constricted inner end loop portions.

References Cited in the le of this patent UNITED STATES PATENTS 1,857,377 Hubbell May 10, 1932 1,933,358 Almcrantz Oct. 31, 1933 v1,999,194 Hubbell Apr. 30, 1935 2,148,278 Rose Feb. 21, 1939 2,292,499 Walsh Aug. 11, 1942 2,446,141 Parsons July 27, 1948 FOREIGN PATENTS Y 577,610 Germany June 2, 193 992,861 France July 11, 1951

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US1857377 *Oct 27, 1927May 10, 1932Hubbell Jr HarveyFloor receptacle mount
US1933358 *Apr 15, 1929Oct 31, 1933Edward L KappelmanOutlet box
US1999194 *Sep 30, 1931Apr 30, 1935Jr Harvey HubbellScrewless switch and receptacle in outlet boxes
US2148278 *Apr 18, 1936Feb 21, 1939Christopher A StrobelReceptacle for cooling and transporting liquids
US2292499 *Jan 5, 1939Aug 11, 1942William WalshInternal fitting for hollow containers
US2446141 *Feb 14, 1945Jul 27, 1948John B ParsonsSwitch structure
DE577610C *Jun 2, 1933Wilhelm Wunderlich Dipl IngSpreizbefestigung fuer elektrische Installationsapparate in Unterputzdosen durch frei schwingbare, am Apparatesockel befestigte und sich gegen die Dosenwand abstuetzendefedernde Glieder
FR992861A * Title not available
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3093241 *Jan 29, 1960Jun 11, 1963Schmidt MaxPackage, in particular for hollow bodies sensitive to pressure such as christmas tree balls
US3185760 *Jul 6, 1962May 25, 1965Pass & Seymour IncPush-in box mounting for wiring devices
US3187291 *Jan 23, 1963Jun 1, 1965Webster Hime CharlesElectrical locking plug
US3329785 *Oct 9, 1963Jul 4, 1967Gen Motors CorpRectangular conductor harness means and attachments
US3364330 *Jun 16, 1966Jan 16, 1968Ermanno BassaniCover assembly
US3518356 *Feb 12, 1969Jun 30, 1970Friedman GeorgeCover for a wall switch
US3617611 *Apr 14, 1970Nov 2, 1971Traylor Hershman Palo And CowaGrounding connection for outlet box
US3641666 *Sep 18, 1968Feb 15, 1972Litton Systems IncMethod of packaging electrical connectors and assembling same into a wire wrap machine
US3663919 *Jun 16, 1970May 16, 1972Hubbell Inc HarveyGrounding spring for electrical fixtures
US3680031 *Apr 30, 1971Jul 25, 1972Gen ElectricGrounding device for mounting strap
US3697924 *Nov 12, 1970Oct 10, 1972Oliver Michael JGrounding electrical device and box
US3723942 *Mar 3, 1972Mar 27, 1973Arrow Hart IncGrounding clip electric receptacles
US3728468 *Feb 16, 1972Apr 17, 1973Grauer CSpring type grounding means for electrical fixtures
US3885852 *Oct 24, 1973May 27, 1975Grove Edward HQuick couple electric outlet
US3950053 *Jun 3, 1974Apr 13, 1976Zeus Rapizzi S.P.A.Assembling unit for modular electrical apparatus
US3955463 *Jul 30, 1973May 11, 1976Slater Electric Inc.Screw mounting means
US4188854 *Dec 6, 1977Feb 19, 1980Slater Electric, Inc.Screw mounting means
US4494815 *Nov 19, 1982Jan 22, 1985At&T Technologies, Inc.Self-aligning cover for modular tricoupler
US4631354 *May 13, 1985Dec 23, 1986Harvey Hubbell IncorporatedCover assembly for electrical outlet box
US4636914 *Nov 28, 1984Jan 13, 1987Ave S.P.A.Outlet box with removable self-contained device
US4679882 *Sep 17, 1985Jul 14, 1987Mears Larry ESupport clips for supporting electrical fixtures in a junction box
US4725249 *Sep 22, 1986Feb 16, 1988American Telephone & Telegraph CompanyConnector assembly
US4828513 *Jun 9, 1986May 9, 1989Knoll International, Inc.Electrical housing assembly for removable placement on a table top
US4936794 *Jun 12, 1989Jun 26, 1990Shaw Robert LRecessed ac wall outlet
US4986779 *Feb 6, 1990Jan 22, 1991Amp IncorporatedLocal area network interface
US5025944 *Oct 19, 1990Jun 25, 1991Rodick Steven FOutlet assembly for mounting to a wall stud
US5118307 *Mar 15, 1991Jun 2, 1992Siemens Nixdorf Informationssysteme AgContact strip
US5223673 *Dec 10, 1990Jun 29, 1993Mason Gay LModular electrical outlet assembly
US5700976 *Aug 8, 1994Dec 23, 1997Siemens AktiengesellschaftElectronic device housing
US6066805 *May 30, 1995May 23, 2000Thomas & Betts CorporationElectrical receptacle cover having an integrally formed detachable fastening nut
US6087588 *Feb 17, 1998Jul 11, 2000Technical Systems Corp.Active cover plate for an electrical outlet
US6156971 *Aug 22, 1996Dec 5, 2000May; Lindy LawrenceModular electrical system
US6198047 *Feb 8, 1999Mar 6, 2001Charles BarrCable tray with power channel
US6353183 *May 23, 1996Mar 5, 2002The Siemon CompanyAdapter plate for use with cable adapters
US6423900 *Jun 9, 2000Jul 23, 2002Technical Systems Corp.Active cover plate for an electrical outlet
US6441304May 5, 2000Aug 27, 2002The Wiremold CompanyElectrical outlet assembly
US6465735Dec 4, 2000Oct 15, 2002Lindy Lawrence MayModular electrical system
US6563049Dec 4, 2000May 13, 2003Lindy Lawrence MayModular electrical system
US6686540Jun 12, 2002Feb 3, 2004Carlo Compagnone, Jr.Temporary protective cover for an electrical box
US7767905Jun 20, 2008Aug 3, 2010Meyer Mark HElectrical apparatus having quick connect components
US7799992Jan 11, 2008Sep 21, 2010Marvin PinkowskiCover plate for surface mount junction box with locking member
US7960651May 4, 2007Jun 14, 2011Leviton Manufacturing Company, Inc.Wiring device and cover plate snap-on assembly
US8029301Nov 2, 2009Oct 4, 2011Cheetah Usa Corp.Wide safety strap for electrical fixtures
US8109785Mar 18, 2010Feb 7, 2012Cheetah Usa Corp.Connection box assembly method
US8148637 *Sep 4, 2009Apr 3, 2012SlapPlates LLCWall plate devices and systems
US8299359 *May 5, 2011Oct 30, 2012Leviton Manufacturing Company, Inc.Wiring device and cover plate snap-on assembly
US8697991Jan 30, 2012Apr 15, 2014Gordon R. DavidsonWall plate devices and systems
US20110203828 *May 5, 2011Aug 25, 2011Leviton Manufacturing Co., Inc.Wiring device and cover plate snap-on assembly
DE102012106639B3 *Jul 23, 2012Sep 5, 2013Albrecht Jung Gmbh & Co. KgElectrical/electronic installation device for installing e.g. Venetian blind drive device in building, has functional module that is provided with retaining spring at housing, corresponding to retaining portion of support portion
WO1997044992A1 *Apr 17, 1997Nov 27, 1997Siemon CoRack mountable cable distribution enclosure
Classifications
U.S. Classification174/53, 174/66, 439/535, 439/536, 220/3.5
International ClassificationH02B1/048, H02B1/015
Cooperative ClassificationH02B1/048
European ClassificationH02B1/048