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Publication numberUS3344393 A
Publication typeGrant
Publication dateSep 26, 1967
Filing dateAug 13, 1965
Priority dateAug 13, 1965
Publication numberUS 3344393 A, US 3344393A, US-A-3344393, US3344393 A, US3344393A
InventorsHendee Howard R
Original AssigneeHendee Howard R
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Connector housing
US 3344393 A
Images(1)
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Description  (OCR text may contain errors)

p 1967 H. HENDEE 3,344,393

CONNECTOR HOUSING Filed Aug. 13, 1965 HOWARD R HEA/0E5 United States Patent 3,344,393 CONNECTOR HOUSING Howard R. Hendee, 193 Six Mile Road, Comstock Park, Mich. 49321 Filed Aug. 13, 1965, Ser. No. 479,395 2 Claims. (Cl. 33975) ABSTRACT OF THE DISCLOSURE A housing for an electrical connector of the type commonly associated with extension cords which will transfer tension from the connected sections of wire around the connector components, and will also shield the components against accidental contact of other possibly conductive articles to prevent shorting.

This invention provides a housing for an electrical connector of the type commonly associated with extension cords. It is a common and exasperating experience for a workman to find that the power to his machine has been cut off by someone stumbling over the wire and separating a connector. It is very desirable that some arrangement be made to hold the connector components together, rather than rely merely on the friction of the engagement of the conductor prongs. The danger of having partially or completely exposed conductors is also a safety problem.

This invention provides a device which will transfer tension from the connected sections of wire around the connector components, and will also shield the components against accidental contact of other possibly conductive articles to prevent shorting. The connector components are also elevated somewhat from the floor or ground surface, and thus kept clear of small pools or accumulations of Water or oil.

Housings for these purposes are not broadly new, and various arrangements of the clam shell type have been devised and equipped with different forms of clamping devices for engaging the wire sections on both sides of a connector. These clamping devices have not been particularly satisfactory, however, and have lacked either simplicity or effectiveness. The preferred form of this invention generates a clamping action by engaging the wire sections between deformable blocks of rubber-like ma terial as the housing components are closed. The several features of the invention will be analyzed in further detail through a discussion of the particular embodiments illustrated in the accompanying drawing. In the drawing:

FIGURE 1 is a perspective view showing a housing embodying the preferred form of this invention, in the closed condition engaging connected sections of Wire.

FIGURE 2 is a section on the plane 22 of FIG- URE 1.

FIGURE 3 is a section on the plane 3-3 of FIG- URE 1.

FIGURE 4 is an axial section on a somewhat enlarged scale showing the interior arrangement of the device illustrated in FIGURE 1.

FIGURE 5 is a plan view of the housing components opened preparatory to receiving the wire sections and the connector components.

Referring to the drawing, the illustrated connector housing includes the relatively moveable enclosure com- 3,344,393 Patented Sept. 26, 1967 ponents 10 and 11 hinged together at 12. Preferably, the enclosure components are molded from a suitable plastic material in one piece, with the hinged portion 12 being in communication between the two sections which mold the portions 10 and 11. The section 10' is also molded with a hook-shaped extension shown at 13 which engages the shelf 14 integral with the enclosure component 11 to provide a latch holding the two components in the closed condition. The enclosure components 10- and 11 are substantially halves of an annular configuration, and each contain recesses as shown at 15-18 to define access openings for receiving the wire sections 19 and 20. The openings 1516 and 17-18 are essentially semi-cylindrical, and are disposed directly opposite each other to form the access openings as the enclosure components 10 and 11 come together about the hinge 12.

The enclosure component 10- is provided with the blocks 21 and 22 of resiliant rubber-like material which are mounted opposite the similar blocks 23 and 24, respectively, of the enclosure component 11. When the enclosure components are brought together, the action of these blocks is as shown in FIGURE 3. Clearance portions are provided as shown at 25 and 26 so that the blocks remain unsupported in this central area from a direction normal to the plane of separation of the enclosure components 10 and 11. This permits the blocks to deflect into the clearance spaces as the wire sections 19 and 20 are clamped in the relationship shown in FIGURE 4. With the wire sections 19 and 20 gripped in this fashion, and the housing secured by the latch components 13 and 14, possible tension in the wires 19 and 20 is transferred around the connector components 27 and 28 so that they do not separate and expose the prongs 29 and 30.

To minimize the danger of pinching the wire sections in the non-resillient portions of the housing, it is preferable to incorporate the projections 3134 as members molded integrally with the enclosure components 10 and 11. These projections extend across the plane of separation of the enclosure components, and form a barrier preventing movement of the wire toward the hinge area 12. Due to the fact that the projections 31 and 33 must pass the projections 32 and 34, they are displaced slightly with respect to each other, with the projections 31 and 33 being reinforced by web portions as shown at 35 and 36.

The particular embodiments of the present invention which have been illustrated and discussed herein are for illustrative purposes only and are not to be considered as a limitation upon the scope of the appended claims. In these claims, it is my intent to claim the entire invention disclosed herein, except as I am limited by the prior art.

I claim:

1. A connector housing for enclosing electrical connector components, and for transferring tension around said components, said housing comprising:

first and second relatively movable enclosure components, said components being closeable together to define a space, and said components also together defining each of a pair of access openings for receiving an electrical wire, at least one of said components having a block of resilient rubber-like material adjacent at least one of said access openings and disposed to apply a clamping action on a wire engaging said opening on closure of said enclosure components, said block of rubber-like material being 3 supported at the ends thereof, with the central portion unsupported in'a direction normal to the plane of separation of said enclosure components; and securing means for holding said enclosure components together.

2. A housing as defined in claim 1, wherein both of said enclosure components have blocks of resilient rubberlike material adjacent both of said access openings, the blocks on one of said enclosure components being aligned opposite the blocks on the other of said enclosure components.

4 References Cited UNITED STATES PATENTS 3,014,194 12/1961 Berglund 339--75 3,273,105 9/ 196 6 Klassen 339210 X FOREIGN PATENTS 495,192 4/ 1930 Germany.

MARVIN A. CHAMPION, Primary Examiner.

W. DONALD MILLER, Examiner.

I. H. MCGLYNN, Assistant Examiner.

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US3014194 *Jan 6, 1961Dec 19, 1961Berglund Wilhelm AxelCable connector protector
US3273105 *May 5, 1964Sep 13, 1966Thermo Electric Co IncPlug-jack connector
DE495192C *Apr 3, 1930Walter HesseLaengsgeteilter Isolierkoerper fuer elektrische Stecker
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3571781 *Dec 6, 1968Mar 23, 1971Hubbell Inc HarveyPlastic cable clamp
US3792414 *Mar 15, 1972Feb 12, 1974Lyall ElectricPower cord hatch
US3951501 *Sep 10, 1973Apr 20, 1976Bunker Ramo CorporationHousing for electrical connector
US4066321 *Dec 30, 1976Jan 3, 1978Amp IncorporatedElectrical connector
US4438995 *Jul 27, 1981Mar 27, 1984Frank A. CristellHousing with frangible locking elements
US4443047 *Dec 28, 1981Apr 17, 1984Brunswick CorporationSpark plug wiring assembly
US4643505 *Dec 31, 1981Feb 17, 1987Tri-Cities Tool & Die Clinic, Inc.Extension cord connector housing
US4747785 *Mar 17, 1987May 31, 1988Global Equipment Company, Div. Of Continental DynamicsShielding for connector hood
US4884979 *Apr 14, 1989Dec 5, 1989Budner Henry MExtension cord clamp
US5110303 *Jul 30, 1991May 5, 1992Hardy James LElectrical cord connection retainer
US5129839 *Nov 20, 1991Jul 14, 1992Doskocil Manufacturing Company, Inc.Extension cord connection housing
US5135409 *Oct 1, 1990Aug 4, 1992Paul ThompsonDevice for securing electrical cords
US5217387 *Apr 28, 1992Jun 8, 1993Hull Harold LWater resistant extension cord connector housing
US5259782 *Jun 26, 1992Nov 9, 1993Giffin Kevin HElectrical connector jacket
US5299951 *Aug 12, 1992Apr 5, 1994Ewald BlaetzHousing for an electrical connection
US5755588 *May 1, 1996May 26, 1998Sweatman; BobbyRetention enclosure for in-line electrical plugs
US5820422 *Jul 8, 1997Oct 13, 1998Framatome Connectors Usa Inc.Cover for an electrical wedge connector
US5834690 *Aug 23, 1994Nov 10, 1998Bato Trading BvSpatter, dust and rain-proof plastic safety case intended for extension cord plugging
US6135803 *Jun 3, 1999Oct 24, 2000Alert Safety Lite Products Co., Inc.Electrical plug lock
US6149445 *Jul 10, 1999Nov 21, 2000Daddono; Samuel J.Control pod
US6171132 *Jun 8, 2000Jan 9, 2001C-K Worldwide Inc.Cover for cable connectors and the like
US7137843Apr 25, 2005Nov 21, 2006Samuel MunozSystem for outdoor electrical protection
US7182624 *Sep 13, 2005Feb 27, 2007Tmc EnterprisesPlug retention apparatus
US7186130Jul 21, 2005Mar 6, 2007Tmc EnterprisesPlug retention apparatus
US7189100 *Feb 18, 2005Mar 13, 2007Colbourne Jerome GCord retaining housing and method
US7197904Jan 14, 2004Apr 3, 2007Master Lock Company LlcLockout device
US7425146Mar 6, 2006Sep 16, 2008Hubbell IncorporatedLock-on boot
US7690940Sep 30, 2008Apr 6, 2010Timothy BurrPower cord coupling device
US7752876Apr 2, 2007Jul 13, 2010Master Lock Company LlcLockout device
US8702440Aug 29, 2012Apr 22, 2014Midwest Innovative Products, LlcElectrical cord connection covering techniques
DE3544785A1 *Dec 18, 1985Jun 19, 1987Bayerische Motoren Werke AgSealing system for lines
WO1996027222A1 *Feb 23, 1996Sep 6, 1996Hug Plug LimitedProtective coupling for plug and socket connections
WO2013033161A1 *Aug 29, 2012Mar 7, 2013Midwest Innovative Products, LlcElectrical cord connection covering techniques
Classifications
U.S. Classification439/369, 439/367
International ClassificationH01R13/639, H02G15/08
Cooperative ClassificationH02G15/08, H01R13/6392
European ClassificationH01R13/639B, H02G15/08