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Publication numberUS3633150 A
Publication typeGrant
Publication dateJan 4, 1972
Filing dateApr 8, 1970
Priority dateApr 8, 1970
Publication numberUS 3633150 A, US 3633150A, US-A-3633150, US3633150 A, US3633150A
InventorsSwartz Edward
Original AssigneeSwartz Edward
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Watertight electric receptacle connector
US 3633150 A
Abstract
A watertight receptacle including a receptacle connector having electrical contacts and a threaded body that mates with an existing watertight plug is provided. The receptacle body is internally threaded to receive in a watertight fitting a removable plug. The threaded internal area is positioned opposite an enlarged outer grip portion which is substantially identical in form to the screwcap of the mating plug to facilitate tightening to achieve a watertight connection.
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Description  (OCR text may contain errors)

United States Patent Inventor Edward Swartz 68 Hamilton Avenue, Haverhill, Mass. 01830 Appl. No 26,689

l'llml Apr. Ii, I970 Patented Jan. 4, 1972 WATERTIGHT ELECTRIC RECEPTACLE CONNECTOR 5 Claims, 8 Drawing Figs.

US. Cl 339/36, 339/89 R, 339/94 R, 339/176 R, 339/191 R Int. Cl H0lr 13/44 Field of Search 339/89 R,

'89 C, 89 M, 36, 39, 45 M, 176, 177, 180, 188 R, 188 C, 191 R, 191 M, 192 R, 94 R, 94 C, 94 M, 195 R, 195 M, 206, 207, 209; 174/67; 220/24, 24.3

References Cited UNITED STATES PATENTS 1,977,106 10/1934 Wylie 339/89 R 2,296,766 9/1942 174/22 2,739,290 3/1956 339/49 B 2,962,688 1 H1960 339/89 R 3,181,105 4/1965 339/94R 3,307,138 2/1967 33 /89 R Primary Examiner-Marvin A. Champion Assistant Examiner-Terrell F. Lewis AttorneysR. S. Sciascia, L. 1. Shrago and C. E. Vautrain, .lr.

ABSTRACT: A watertight receptacle including a receptacle connector having electrical contacts and a threaded body that mates with an existing watertight plug is provided. The receptacle body is internally threaded to receive in a watertight fitting a removable plug. The threaded internal area is posi- 7 tioned opposite an enlarged outer grip portion which is substantially identical in form to the screwcap of the mating plug to facilitate tightening to achieve a watertight connection.

PATENTEUJAN M972 3633.150

SHEET 1 [IF 2 E DWA R D SWARTZ INVENTOR.

BMW-1 g ZZZLZ WENIED m 41912 SHEET 2 OF 2 EDWARD SWARTZ INVENTOR. 05? W WATERTIGHT ELECTRIC RECEPTACLE CONNECTOR The invention described herein may be manufactured and used by or for the Government of the United States of America for governmental purposes without the payment of any royalties thereon or therefor.

This invention relates to a portable electric receptacle for maintaining a watertight connection when used on conjunction with the electric plug of U.S. Pat. No. 3,307,138 issued to me, dated Feb. 28, 1967.

Bladed-type, portable electric plugs and receptacles are in use extensively in private boating as well as in oceangoing vessels. U.S. Pat. NO. 3,307,138 defines a particular type of portable plug which, when connected to standard shipboard fittings, provides a watertight connection to such fittings through a watertight housing and a screwcap which is screwed onto the threads of the shipboard connection.

The watertight connector of U.S. Pat. No. 3,307,138, although providing watertight connections to exposed sockets, has no portable counterpart which may be used to form a watertight connection between two cable ends. The present invention provides a mating watertight, portable receptacle and includes, in addition to a housing for the terminals to be protected, an integral knurled grip which is substantially identical in diameter to the diameter of the screwcap of the plug and an internally threaded area for receiving a contact housing in sealed relationship with the receptacle housing. To greatly facilitate achieving a sealed connection, the threads of the contact housing and the mating threads in the receptacle housing are disposed radially in line with the knurled grip portion.

Accordingly, it is an object of this invention to provide an improved type of electric receptacle for use with a portable, watertight electric plug.

Another object of the present invention is to provide an improved portable, watertight receptacle having an integral grip portion which, when tightened, is disposed adjacent the screwcap of the receptacle.

A further object of the invention it to provide a simple, easily repairable, relatively low-cost receptacle capable of quickly forming a sealed electric connection with a watertight electric plug.

Other objects, advantages and novel features of the invention will become apparent from the following detailed description thereof when considered in conjunction with the accompanying drawings wherein:

FIG. 1 is an isometric view, partly cut away, of the receptacle assembly of the present invention;

FIG. 2 in a half-sectional, side elevation view of the assembled components of the receptacle of FIG. 1;

FIG. 3 is a sectional plan view of the packing assembly utilized in the embodiments of FIGS. 1 and 2;

FIG. 4 is a sectional plan view of the receptacle housing of the embodiment of FIG. 1;

FIG. 5 is a side elevation view of the contact housing employed in the embodiment of FIG. 1;

FIG. 6 is a plan view of the contact housing of FIG. 5;

FIG. 7 is a bottom view of the contact housing of FIG. 5; and

FIG. 8 is a composite view of the receptacle of the invention aligned with a mating electric plug.

Referring to FIG. 1, receptacle assembly 11 is shown including a hollow receptacle body 12 which is generally cylindrical in shape and receives a contact housing 14 at one end and a cable-packing assembly 16 at the opposite end. Housing 12 is preferably integrally formed with a raised grip portion 18 which has substantially the same outer diameter as the screwcap of the mating electric plug which is to be used with the present receptacle to form a watertight connection. Housing 12 also is provided in longitudinal succession with an externally threaded portion 19 to receive the screwcap of the mating device and a reduced diameter chamber 21 having a threaded area 22 radially aligned with grip portion 18,

chamber 21 being adapted to receive in sealed fit at threaded area 22 contact housing 14. Chamber 21 is shaped to accom- 26 and 27, shown in FIG. 7. In further longitudinal succession,

housing 12 next is formed with a ridge 28 of reduced diameter and a chamber 29 of tapering increased diameter for receiving an electric cable, not shown, and packing assembly 16. Packing assembly 16 and the cable are compressedin sealed relationship in chamber 29 by a cable-securing cap 30.

FIG. 2 shown the various components in a sectional side elevation view and illustrates the relative placement of contact housing 14 and grip portions 18. Threaded area 22, by which housing 14 is engaged with housing 12, is shown radially disposed within the longitudinal limits of knurled, raised grip portion 18. Contact housing 14 is of a conventional type having a ground spring contact 33 and a pair of terminal spring contacts, not shown. Receptacle housing 12 is provided with a screwcap 34 secured by a safety cord 35 f or maintaining the receptacle watertight when not in use. A washer 36 is inserted between cap 34 and housing 12 to provide theiwatertight seal. At the end of housing 12 opposite that of cap 34, the cable securing cap 30 is shown holding in place packing assembly 16 which is illustrated in detail in FIG. 3. This assembly is shown mounted on a cable 38 and includes a packing bushing 39 which is centrally disposed in chamber 29, a pair of sealing washers 40 and 41 which are disposed between cap 30 and housing 12, and a third sealing washer 42 which is disposed at the interior end of chamber 29 between ridge 28 and bushing FIG. 4 is a sectional side elevation view of housing 12 only and illustrates the relation of the various portions to the grip portion 18. Starting at the receptacle end, housing 12 is provided with an opening 48, of enlarged diameter which is adapted to receive the end of a mating electric plug and a circumscribing externally threaded portion 19. A flange is provided at 49 for stopping the connecting plug, and chamber 2 l, of reduced diameter, is nextprovided for receiving contact housing 14. Chamber 21 extends a sufi'rcient distance to a flange 51 to accommodate the terminal ends of a cable. Ridge 28 forms a flange 52 against which washer 42 abuts while the outer end of chamber 29 is tapered, as indicated at 54, to receive the mating surface of packing bushing 39. External to chamber 29 are threads 55 to receive cable cap 30.

FIGS. 5, 6 and 7 illustrate a standard type of contact housing, such as 14, which in this embodiment is provided with an enlarged cylindrical upper portion 57 including a threaded portion 58 and a protruding annular cap 59 which forms a surface 60 for abutting flange 49 of housing 12. The socket end of housing 14 is shown in FIG. 6, and the terminal end is shown in FIG. 7. Molded barriers, such as are indicated at 65, may be provided at the terminal end to add strength to the unit as ,well as to electrically isolate the terminals. The composite receptacle and mating plug shown in FIG. 8 includes receptacle assembly 11 to the left with closure cap 34 removed and to the right mating plug 70 for insertion into the receptacle of the present invention. Cap 71 of plug 70 slideable over housing 72 and abuts against a flange 73 at the end of housing 72 compressing a washer 74 between housing 72 and housing 12 to form a watertight seal when cap 71 is tightened on threads 19.

The watertight receptacle of the present invention is particularly adapted to be used in conjunction with applicants watertight plug to form a chain of electric, watertight connections which may be used to provide exterior lighting such as about a ships hull for either decorative purposes or military security, among other applications. The mating plug and receptacle are joined to form the watertight connection by simply turning in opposite direction the screwcap of the prior electric plug and the knurled grip of similar dimensions in the present watertight receptacle. The screwcap of the prior invention is provided with an inwardly turned flange and is slideable on the housing up to an outwardly turnedflange at the In the prior invention, the screwcap is secured over the threads on a permanently installed receptacle so that, when tightened, a watertight seal is formed by the washer when it is compressed between the screwcap and the end surface of the receptacle. The present invention provides a similar watertight connection but substitutes a portable receptacle for the permanently installed receptacle. With the present invention, it is possible to fonn a chain of connectors as long as desired by simply joining together the required number of cords or cables having the receptacle of the present invention at one end and the plug of the prior invention at the other end. The receptacle may be assembled easily by inexperienced person nel and requires as tools only a screwdriver. The components of the receptacle preferably are made of molded polycarbonate with the exception of the bushing and washers which may be made of any suitable conventional elastomeric material.

Obviously many modifications and variations of the present invention are possible in the light of the above teachings.

What is claimed is:

l. A sealable electric receptacle assembly adapted to be connected to a sealable electric plug, comprising:

a hollow receptacle body generally cylindrical in shape, said body having in longitudinal succession:

an externally threaded cylindrical portion for connection of a mating electric plug cap;

an enlarged diameter external grip portion and an internally threaded area opposite said grip portion to facilitate securing an electric contact means therein and tightening said cap;

an elongate central cavity for receiving the contact means;

a reduced diameter end portion and a cable-packing means adapted to be inserted therein for receiving an electric cable in sealed relationship;

an externally threaded portion disposed about said cable end portion for receiving a cable-securing cap;

an electric contact means adapted be secured in said body; and

a screwcap adapted to form a sealed closure when tightened on said body, whereby a sealed receptacle is provided which is adapted for connection with a mating electrical plug assembly to form a sealed electric connection.

2. The receptacle assembly as defined in claim 1 wherein the mating electric plug is provided with a screwcap and a closure flange against which a sealing washer is compressed when said screwcap is tightened,

the grip portion of said receptacle assembly having an outer transverse surface disposed a selected distance from the adjacent end of the assembly to permit complete tightening of the screwcap of the mating electric plug,

the mating threaded areas of said screwcap and said cylindrical portion providing one sealed area and the washer providing the other sealed area at the junction of said plug and receptacle.

3. The receptacle assembly as defined in claim 3 wherein said contact means is adapted to be screwed into said internally threaded area by the prongs of said male plug.

4. In a series of electric cords or cables for establishing a watertight circuit which includes a watertight plug having a screwcap and washer adapted to form a seal when tightened on a fixed receptacle, the combination of:

a receptacle assembly having a hollow receptacle body generally cylindrical in shape,

said body including in longitudinal succession an externally threaded cylindrical portion having threads matching the threads on said fixed receptacle;

a reduced diameter chamber adapted to receive a contact housing and the terminal ends of a cable to be connected thereto,

said chamber forming a radially disposed surface against which said plug abuts and having a threaded area adjacent said surface; an enlarged diameter grip portion radially disposed with respect to said chamber threaded area,

said grip portion substantially identical in shape to the screwcap of said plug to facilitate tightening of the screwcap;

a cable and cable-packing receiving chamber for receiving an electric cable in sealed relationship therein, said packing chamber forming a radially disposed surface against which the cable packing abuts;

an internally threaded cable-securing cap and external threading on said receptacle housing for securing said cable-securing cap thereto;

a contact housing secured in said receptacle housing; and

a cable secured in said receptacle housing and connected to said contact housing whereby cables assembled using said watertight receptacles and plugs may form power extensions of any desired length, providing lighting, outlets, etc., for ship or shore use.

5. The receptacle assembly as defined in claim 4 wherein said contact means is adapted to be screwed into said internally threaded area by the prongs of said male plug.

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US1977106 *Feb 15, 1930Oct 16, 1934F H Lovell & CompanyWater tight receptacle and plug
US2296766 *Aug 13, 1940Sep 22, 1942Bruno Patents IncCoupling means for coaxial cables
US2739290 *Jun 20, 1951Mar 20, 1956Us Rubber CoElectrical cable coupling
US2962688 *Jul 10, 1957Nov 29, 1960Siemens And Halske Ag Berlin APlug-in cable connector
US3181105 *Jun 17, 1963Apr 27, 1965Denney Melvin LCable connector
US3307138 *Mar 19, 1965Feb 28, 1967Edward SwartzWatertight repairable electric plug
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3755772 *Aug 16, 1972Aug 28, 1973D ReedMechanical interlock for electric circuit
US4497531 *Jul 19, 1982Feb 5, 1985Amp IncorporatedElectrical connector
US5435736 *Sep 7, 1993Jul 25, 1995Raychem CorporationCoaxial cable connection protection system for unused connection port
US5458507 *Sep 10, 1993Oct 17, 1995Eft Interests, Ltd.Fluid resistant electrical connector with boot-type seal assembly
US5630419 *Dec 20, 1994May 20, 1997Tetrad CorporationSealing connector for multiconductor cables
US5632651 *Nov 27, 1995May 27, 1997John Mezzalingua Assoc. Inc.Radial compression type coaxial cable end connector
US5655915 *Jun 1, 1995Aug 12, 1997Raychem CorporationCoaxial cable connection protection system for unused connection port
US5951309 *Mar 2, 1998Sep 14, 1999Hubbell IncorporatedReceptacle assembly having position retention tabs
US6089888 *Sep 2, 1998Jul 18, 2000Hubbell IncorporatedReceptacle assembly with cover position indicating means
US6132227 *Sep 2, 1998Oct 17, 2000Hubbell IncorporatedReceptacle assembly with improved enclosure
US6142805 *Sep 3, 1999Nov 7, 2000Geo Space CorporationWaterproof geophysical connector
US6676422Oct 1, 2002Jan 13, 2004Drilltec Patents & Technologies Co., Inc.Power cord composite threaded sealing cap
US7063565May 14, 2004Jun 20, 2006Thomas & Betts International, Inc.Coaxial cable connector
US7192308May 18, 2004Mar 20, 2007Thomas & Betts International, Inc.Coaxial connector having detachable locking sleeve
US7241172Apr 12, 2005Jul 10, 2007Thomas & Betts International Inc.Coaxial cable connector
US7287992Oct 28, 2005Oct 30, 2007John Mezzalingua Associates, Inc.Protective cap for coaxial cable port terminator
US7309255Mar 9, 2006Dec 18, 2007Thomas & Betts International, Inc.Coaxial connector with a cable gripping feature
US7354307Jun 26, 2006Apr 8, 2008Pro Brand International, Inc.End connector for coaxial cable
US7422479Aug 2, 2007Sep 9, 2008Pro Band International, Inc.End connector for coaxial cable
US7455549Jun 5, 2006Nov 25, 2008Thomas & Betts International, Inc.Coaxial cable connector with friction-fit sleeve
US7458849Jan 25, 2007Dec 2, 2008Thomas & Betts International, Inc.Coaxial connector having detachable locking sleeve
US7566236Jun 5, 2008Jul 28, 2009Thomas & Betts International, Inc.Constant force coaxial cable connector
US7568945Sep 3, 2008Aug 4, 2009Pro Band International, Inc.End connector for coaxial cable
US7588460Mar 7, 2008Sep 15, 2009Thomas & Betts International, Inc.Coaxial cable connector with gripping ferrule
US7794275Mar 19, 2008Sep 14, 2010Thomas & Betts International, Inc.Coaxial cable connector with inner sleeve ring
US7828595Mar 3, 2009Nov 9, 2010John Mezzalingua Associates, Inc.Connector having conductive member and method of use thereof
US7833053Apr 22, 2009Nov 16, 2010John Mezzalingua Associates, Inc.Connector having conductive member and method of use thereof
US7845976Mar 30, 2009Dec 7, 2010John Mezzalingua Associates, Inc.Connector having conductive member and method of use thereof
US7887366Jul 31, 2009Feb 15, 2011Pro Brand International, Inc.End connector for coaxial cable
US7892005May 19, 2010Feb 22, 2011John Mezzalingua Associates, Inc.Click-tight coaxial cable continuity connector
US7950958Nov 8, 2010May 31, 2011John Messalingua Associates, Inc.Connector having conductive member and method of use thereof
US8029315May 26, 2009Oct 4, 2011John Mezzalingua Associates, Inc.Coaxial cable connector with improved physical and RF sealing
US8062063Sep 28, 2009Nov 22, 2011Belden Inc.Cable connector having a biasing element
US8075337Sep 28, 2009Dec 13, 2011Belden Inc.Cable connector
US8075338Oct 18, 2010Dec 13, 2011John Mezzalingua Associates, Inc.Connector having a constant contact post
US8079860Jul 22, 2010Dec 20, 2011John Mezzalingua Associates, Inc.Cable connector having threaded locking collet and nut
US8113875Sep 28, 2009Feb 14, 2012Belden Inc.Cable connector
US8113879Jul 27, 2010Feb 14, 2012John Mezzalingua Associates, Inc.One-piece compression connector body for coaxial cable connector
US8152551Jul 22, 2010Apr 10, 2012John Mezzalingua Associates, Inc.Port seizing cable connector nut and assembly
US8157589May 31, 2011Apr 17, 2012John Mezzalingua Associates, Inc.Connector having a conductively coated member and method of use thereof
US8167635Oct 18, 2010May 1, 2012John Mezzalingua Associates, Inc.Dielectric sealing member and method of use thereof
US8167636Oct 15, 2010May 1, 2012John Mezzalingua Associates, Inc.Connector having a continuity member
US8167646Oct 18, 2010May 1, 2012John Mezzalingua Associates, Inc.Connector having electrical continuity about an inner dielectric and method of use thereof
US8172612May 27, 2011May 8, 2012Corning Gilbert Inc.Electrical connector with grounding member
US8192237Feb 23, 2011Jun 5, 2012John Mezzalingua Associates, Inc.Coaxial cable connector having electrical continuity member
US8272893May 25, 2010Sep 25, 2012Corning Gilbert Inc.Integrally conductive and shielded coaxial cable connector
US8287310Sep 2, 2011Oct 16, 2012Corning Gilbert Inc.Coaxial connector with dual-grip nut
US8287320Dec 8, 2009Oct 16, 2012John Mezzalingua Associates, Inc.Coaxial cable connector having electrical continuity member
US8313345Oct 7, 2010Nov 20, 2012John Mezzalingua Associates, Inc.Coaxial cable continuity connector
US8313353Apr 30, 2012Nov 20, 2012John Mezzalingua Associates, Inc.Coaxial cable connector having electrical continuity member
US8323053Oct 18, 2010Dec 4, 2012John Mezzalingua Associates, Inc.Connector having a constant contact nut
US8323060Jun 14, 2012Dec 4, 2012John Mezzalingua Associates, Inc.Coaxial cable connector having electrical continuity member
US8337229Jan 28, 2011Dec 25, 2012John Mezzalingua Associates, Inc.Connector having a nut-body continuity element and method of use thereof
US8342879Mar 25, 2011Jan 1, 2013John Mezzalingua Associates, Inc.Coaxial cable connector
US8348697Apr 22, 2011Jan 8, 2013John Mezzalingua Associates, Inc.Coaxial cable connector having slotted post member
US8366481Mar 30, 2011Feb 5, 2013John Mezzalingua Associates, Inc.Continuity maintaining biasing member
US8382517May 1, 2012Feb 26, 2013John Mezzalingua Associates, Inc.Dielectric sealing member and method of use thereof
US8388377Apr 1, 2011Mar 5, 2013John Mezzalingua Associates, Inc.Slide actuated coaxial cable connector
US8398421Feb 1, 2011Mar 19, 2013John Mezzalingua Associates, Inc.Connector having a dielectric seal and method of use thereof
US8414322Dec 14, 2010Apr 9, 2013Ppc Broadband, Inc.Push-on CATV port terminator
US8419470Aug 3, 2011Apr 16, 2013Belden Inc.Coaxial connector having detachable locking sleeve
US8444445Mar 25, 2011May 21, 2013Ppc Broadband, Inc.Coaxial cable connector having electrical continuity member
US8449324Oct 20, 2008May 28, 2013Belden Inc.Coaxial connector having detachable locking sleeve
US8465322Aug 19, 2011Jun 18, 2013Ppc Broadband, Inc.Coaxial cable connector
US8469739Mar 12, 2012Jun 25, 2013Belden Inc.Cable connector with biasing element
US8469740Dec 24, 2012Jun 25, 2013Ppc Broadband, Inc.Continuity maintaining biasing member
US8475205Dec 24, 2012Jul 2, 2013Ppc Broadband, Inc.Continuity maintaining biasing member
US8480430Dec 24, 2012Jul 9, 2013Ppc Broadband, Inc.Continuity maintaining biasing member
US8480431Dec 24, 2012Jul 9, 2013Ppc Broadband, Inc.Continuity maintaining biasing member
US8485845Dec 24, 2012Jul 16, 2013Ppc Broadband, Inc.Continuity maintaining biasing member
US8506325Nov 7, 2011Aug 13, 2013Belden Inc.Cable connector having a biasing element
US8506326Oct 24, 2012Aug 13, 2013Ppc Broadband, Inc.Coaxial cable continuity connector
US8529279Dec 12, 2012Sep 10, 2013Ppc Broadband, Inc.Connector having a nut-body continuity element and method of use thereof
US8550835Apr 11, 2013Oct 8, 2013Ppc Broadband, Inc.Connector having a nut-body continuity element and method of use thereof
US8556656Oct 1, 2010Oct 15, 2013Belden, Inc.Cable connector with sliding ring compression
US8562366Oct 15, 2012Oct 22, 2013Ppc Broadband, Inc.Coaxial cable connector having electrical continuity member
US8573996May 1, 2012Nov 5, 2013Ppc Broadband, Inc.Coaxial cable connector having electrical continuity member
US8591244Jul 8, 2011Nov 26, 2013Ppc Broadband, Inc.Cable connector
US8597041Oct 15, 2012Dec 3, 2013Ppc Broadband, Inc.Coaxial cable connector having electrical continuity member
US8647136Oct 15, 2012Feb 11, 2014Ppc Broadband, Inc.Coaxial cable connector having electrical continuity member
US8690603Apr 3, 2012Apr 8, 2014Corning Gilbert Inc.Electrical connector with grounding member
US8753147Jul 22, 2013Jun 17, 2014Ppc Broadband, Inc.Connector having a coupling member for locking onto a port and maintaining electrical continuity
US8758050Jun 10, 2011Jun 24, 2014Hiscock & Barclay LLPConnector having a coupling member for locking onto a port and maintaining electrical continuity
USRE43832Jul 27, 2011Nov 27, 2012Belden Inc.Constant force coaxial cable connector
EP0072104A1 *Jul 12, 1982Feb 16, 1983AMP INCORPORATED (a New Jersey corporation)Sealed electrical connector
Classifications
U.S. Classification439/142, 439/135, 439/271
International ClassificationH01R13/52
Cooperative ClassificationH01R13/5221
European ClassificationH01R13/52P1