Three-prong Coupling Part Including Ground Prong, Or Receptacle Patents (Class 439/106)
  • Patent number: 6902429
    Abstract: The invention provides a housing that contains a 220 volt outlet receptacle and multiple 110 volt outlet receptacles. A 220 volt power cord supplies power to each of the receptacles. The invention is easy to use and allows for a very efficient use of the user's time because one 220 volt power cord supplies both a 220 volt outlet receptacle and multiple 110 volts outlet receptacles, so the user only has to use one cord to connect to multiple types of outlets.
    Type: Grant
    Filed: July 29, 2004
    Date of Patent: June 7, 2005
    Inventor: Frederick A. Brooks
  • Patent number: 6893274
    Abstract: A structure of the AC inlet is provided. The structure includes a main body, at least one power terminal, at least one power pin coupled with the at least one power terminal and electrically connected to a circuit board, a ground terminal for accepting a ground signal from the AC power source, and a ground pin grounded through a wire and having a first strip coupled with the ground terminal and a second strip essentially parallel with a surface of the main body. The structure is characterized in that the free end of the second strip has a notch for accommodating a bare wire end of the wire and a projecting plate inclined at an elevation angle with the second strip, and the projecting plate is pressed downwards for fastening the bare ware end.
    Type: Grant
    Filed: February 11, 2002
    Date of Patent: May 17, 2005
    Assignee: Delta Electronics, Inc.
    Inventors: Chen Chun Chen, Chih Chiang Lin
  • Patent number: 6855007
    Abstract: A connector for connecting a plurality of wires to a sub-miniature switch and lamp socket assembly having tabs and a ground pin includes a molded, one-piece housing and a plurality of terminals for joining the plurality of wires to the tabs and ground pin. A plurality of openings are formed within the housing, accepting both the plurality of terminals and the tabs and ground pin of the assembly, and allowing the terminals to connect with the tabs and ground pin. The plurality of openings are formed within the bottom, front, and back faces of the housing. A method of connecting a sub-miniature switch and lamp socket assembly having tabs and a ground pin to a plurality of wires is also disclosed.
    Type: Grant
    Filed: April 28, 2003
    Date of Patent: February 15, 2005
    Assignee: Illinois Tool Works Inc.
    Inventors: Kenneth G. Irish, James A. Turek
  • Patent number: 6848918
    Abstract: A plug having one round-headed copper conductive sheetmetal and two rectangular copper conductive sheetmetals, all contained within injected resin to form a triangle plug with three conductive sheetmetals arranged in triangle protruding forward. The round-headed conductive sheetmetal is punched in one piece with an extended sheetmetal stretched backward and connected to the wire-inlaying end. The two rectangle conductive sheetmetals are punched with the backend stretching upward to form a seamless L-shaped sheetmetal. The backend of the extended sheetmetal is connected with a wire-inlaying end with its opening facing upward, preventing the extended sheetmetals from being damages because of the second twist. With the three conductive sheetmetals wrapped and located at the back of the plug providing a certain degree of strength and each wire-inlaying end being kept in parallel, the wire inlaying process can be completed once.
    Type: Grant
    Filed: August 7, 2002
    Date of Patent: February 1, 2005
    Inventor: Wen-Piao Chuang
  • Publication number: 20040253854
    Abstract: A multipurpose electric adapter is disclosed to include a housing holding two main metal power lead frames and a main metal grounding lead frame near a bottom side and two supplementary power lead frames and a supplementary grounding lead frame respectively connected to the main metal power and grounding lead frames at the top, a back plate fastened to the back side of the housing with the power and grounding prongs disposed in contact with the main metal power and grounding lead frames and extended out of the housing for connection to an electric outlet, and a faceplate covered on the front side of the housing, the faceplate having plug terminal insertion holes corresponding to the main metal power and grounding lead frames and the supplementary metal power and grounding lead frames for receiving any of a variety of electric plugs used in different countries around the world.
    Type: Application
    Filed: June 10, 2003
    Publication date: December 16, 2004
    Inventors: Chiu-Shan Lee, Shen Su-Chen Li
  • Patent number: 6802741
    Abstract: An electric plug includes a plug housing which is formed onto one end of a power cord, the power cord includes a hot line, a neutral line and a ground line. The electric plug includes a lighted rocker switch which provides both circuit breaking and power switching capabilities, the rocker switch being electrically connected to the hot and neutral lines of the power cord. First, second and third conductive terminals project orthogonally out from the plug housing. The first and second conductive terminals are electrically connected to the rocker switch and the third conductive terminal is electrically connected to the ground line. In use, the lighted rocker switch regulates the flow of between the conductive terminals and the power cord in response to overcurrent conditions in the electric plug and manual switching of the power state of the lighted rocker switch.
    Type: Grant
    Filed: August 22, 2002
    Date of Patent: October 12, 2004
    Assignee: Tower Manufacturing Corporation
    Inventor: Louis Shatkin
  • Patent number: 6767255
    Abstract: A temporary power outlet adapter for use with temporary power distribution boxes comprising a twist type male power coupling that is electrically connectable to a conventional temporary power distribution box. A splitter is electrically connected to the twist type male power coupling. A household power outlet is electrically connected to the splitter.
    Type: Grant
    Filed: May 3, 2003
    Date of Patent: July 27, 2004
    Inventor: Del W. Croswell
  • Patent number: 6767226
    Abstract: A premold for a receptacle for an electrical male plug includes valving means on particular contact cooperative valving portions and through ground pin receptacle expansion.
    Type: Grant
    Filed: February 28, 2002
    Date of Patent: July 27, 2004
    Assignee: ETCO Incorporated
    Inventor: Thomas R. Varatta
  • Patent number: 6764322
    Abstract: A power plug receptacle having a safety cover comprises a plurality of sockets each provided with a rotary safety cover. A socket and a safety cover are coupled through inserting a pivot post into a pivot hole and engaging a guiding pin into a guiding slot. A torsional spring provided within the socket resiliently ejects the safety cover into a position where the socket holes and the safety cover holes are misaligned. Therefore, the socket is automatically sealed, achieving the protective functions against foreign intrusion.
    Type: Grant
    Filed: October 10, 2003
    Date of Patent: July 20, 2004
    Inventor: Tsung-I Yu
  • Publication number: 20040053523
    Abstract: A quick connect plug for electrically connecting and mechanically attaching a power cord to an appliance, such as a disposer, is disclosed. The plug is connected to an end of the power cord. In one embodiment, the plug houses push-in terminals, which are electrically connected to first and second wires of the power cord. A first portion of the plug defines openings to receive leads from the disposer, which electrically connect to the push-in terminals housed in the plug. The first portion positions through an aperture defined in a metal portion or lower end frame of the disposer. A plurality of tabs disposed about the first portion engage an inside surface of the lower end frame of the disposer. A second portion of the plug is connected to the cord and defines a shoulder with the first portion. A conductive ring is disposed on the shoulder and is electrically connected to the ground wire of the power cord. The conductive ring contacts the metal frame of the disposer.
    Type: Application
    Filed: June 25, 2003
    Publication date: March 18, 2004
    Applicant: EMERSON ELECTRIC CO.
    Inventors: Thomas R Berger, Jerry G Ryder
  • Publication number: 20040029424
    Abstract: A plug with improved conductive sheetmetals comprising one round-headed copper conductive sheetmetal and two rectangular copper conductive sheetmetals, all contained within injected resin to form a triangle plug with three conductive sheetmetals arranged in triangle protruding forward. The round-headed conductive sheetmetal is punched in one piece with an extended sheetmetal stretched backward and connected to the wire-inlaying end. The two rectangle conductive sheetmetals are punched with the backend stretching upward to form a seamless L-shaped sheetmetal. The backend of the extended sheetmetal is connected with a wire-inlaying end with its opening facing upward, preventing the extended sheetmetals from being damaged because of the second twist. With the three conductive sheetmetals wrapped and located at the back of the plug providing a certain degree of strength and each wire-inlaying end being kept in parallel, the wire inlaying process could be completed once.
    Type: Application
    Filed: August 7, 2002
    Publication date: February 12, 2004
    Inventor: Wen-Piao Chuang
  • Patent number: 6669491
    Abstract: A power plug is proposed, including a terminal base having at least one conductive terminal and a ground terminal; an electric wire having core wires connected to the conductive terminal and ground terminal, respectively; a cover integrally connected to the terminal base; and a ground mechanism for grounding isolated metal parts (such as screws). The ground mechanism can prevent quality of power provided through the power plug from being deteriorated by electromagnetic effect of the metal parts.
    Type: Grant
    Filed: February 6, 2002
    Date of Patent: December 30, 2003
    Assignee: Furutech Co., LTD
    Inventor: Nishimuru Yoji
  • Patent number: 6644986
    Abstract: A redundantly ground plug having a live prong, a neutral prong, a first ground prong and a second groung prong arranged to be received in a live contact, a neutral contact, and a ground contact of a first socket and a ground contact of a second socket of a standard power supply such as a duplex receptacle or power strip is disclosed. A flexible boot extends from the plug to seal the prongs and contacts from moisture.
    Type: Grant
    Filed: March 17, 2000
    Date of Patent: November 11, 2003
    Assignee: Hill-Rom Services, Inc.
    Inventor: John B. Wilker, Sr.
  • Publication number: 20030162423
    Abstract: A premold for a receptacle for an electrical male plug includes valving means on particular contact cooperative valving portions and through ground pin receptacle expansion.
    Type: Application
    Filed: February 28, 2002
    Publication date: August 28, 2003
    Inventor: Thomas R. Varatta
  • Publication number: 20030153205
    Abstract: A jack typically for aircraft headphones has sockets (802) accepting any of several different types of headsets (804), and attached sensing components (801) to correctly detect from the number of pins inserted and the impedances and/or voltages sensed on those pins the type of headset inserted. Connection is then appropriately made to the audio while the stereo or noise cancellation properties of the headsets are correctly used.
    Type: Application
    Filed: December 20, 2002
    Publication date: August 14, 2003
    Applicant: Slab DSP Limited of Auckland, New Zealand
    Inventors: John Frederick Corey, Mark Donaldson
  • Patent number: 6604954
    Abstract: A power plug has a housing, a voltage prong, a neutral prong, and a ground prong, the prongs set in the housing, and a main body elastically set in the housing and encircling the prongs. When plugging the power plug into a socket, the main body retracts toward the housing. When unplugging the power plug from the socket, the main body is pushed outward to cover the prongs. In such a manner, only a small section of each prong is exposed to open air or the prongs are not exposed at all, increasing the safety of the power plug.
    Type: Grant
    Filed: October 23, 2001
    Date of Patent: August 12, 2003
    Assignee: Primax Electronics Ltd.
    Inventors: Kuen-Yan Chu, Yi-Te Ch
  • Publication number: 20030148643
    Abstract: A power plug is proposed, including a terminal base having at least one conductive terminal and a ground terminal; an electric wire having core wires connected to the conductive terminal and ground terminal, respectively; a cover integrally connected to the terminal base; and a ground mechanism for grounding isolated metal parts (such as screws). The ground mechanism can prevent quality of power provided through the power plug from being deteriorated by electromagnetic effect of the metal parts.
    Type: Application
    Filed: February 6, 2002
    Publication date: August 7, 2003
    Inventor: Nishimuru Yoji
  • Patent number: 6595810
    Abstract: An electrical receptacle having a body member, the body member having at least one blade-engaging member with a first and second portion spaced apart one another, a bridge portion, and at least one side structure spaced between the first and second portion, with at least one electrical lead coupled to the body member and at least one protrusion located on the body member that releasably engages and disengages a corresponding blade member absent the presence of an externally actuated release mechanism. Also including the electrical connector system having a male plug member having at least one blade with at least one recess. A female connector having at least one blade engaging member.
    Type: Grant
    Filed: November 7, 2001
    Date of Patent: July 22, 2003
    Assignee: Pro Equipment, LLC
    Inventor: Mark Kenny
  • Publication number: 20030077928
    Abstract: A new NEMA-style AC power outlet connector is disclosed that comprises a body portion and a shoulder portion, the body portion is configured for fitting into a standard cutout for a conventional IEC AC power outlet connector. In one version, the IEC AC power outlet connector is an IEC C13 AC power outlet connector having a rectangular mounting cutout with a height of about 1.28 inches and a width of about 0.98 inch. The new NEMA-style connector shoulder portion has a height of about 1.375 inches and a width of about 1.0625 inches and the body portion includes at least one opposing pair of elastic spring clips for retaining the new NEMA-style AC power outlet connector snapped into IEC C13 standard cutout. The new NEMA-style AC power outlet connector is selected from the group consisting of NEMA 5-15R, 125 VAC, 15 amperes; NEMA 6-15R, 250 VAC, 15 amperes; NEMA 5-20R, 125 VAC, 20 amperes; and NEMA 6-20R, 250 VAC, 20 amperes, AC power outlet connectors.
    Type: Application
    Filed: October 19, 2001
    Publication date: April 24, 2003
    Applicant: PULIZZI ENGINEERING INC.
    Inventors: Michael Dwight Vander Vorste, Peter S. Pulizzi
  • Patent number: 6533466
    Abstract: A combination or hybrid connector, for connecting both an electrical connection and an optical signal connection simultaneously, incorporates a fiber optic conductor aligned with and contained within the ground pin of an electrical power plug. A fiber optic conductor is contained within a mating receptacle unit to which the electrical power is plug connected. The fiber optic conductor of the plug extends beyond the ground pin to enter, be aligned and interface with a fiber optic conductor within the receptacle unit. The end of the fiber optic conductor in the plug is shielded and the shield is retractable upon engagement with the alignment device. The alignment device is fabricated to have a converging interior space which receives the fiber optic conductor of the plug and gently bends the plug fiber optic conductor to an aligned position to place the end thereof closely juxtaposed with the end of the fiber optic conductor of the receptacle.
    Type: Grant
    Filed: September 7, 2000
    Date of Patent: March 18, 2003
    Assignee: International Business Machines Corporation
    Inventor: Gordon James Smith
  • Publication number: 20030040204
    Abstract: A structure of the AC inlet is provided. The structure includes a main body, at least one power terminal, at least one power pin coupled with the at least one power terminal and electrically connected to a circuit board, a ground terminal for accepting a ground signal from the AC power source, and a ground pin grounded through a wire and having a first strip coupled with the ground terminal and a second strip essentially parallel with a surface of the main body. The structure is characterized in that the free end of the second strip has a notch for accommodating a bare wire end of the wire and a projecting plate inclined at an elevation angle with the second strip, and the projecting plate is pressed downwards for fastening the bare ware end.
    Type: Application
    Filed: February 11, 2002
    Publication date: February 27, 2003
    Inventors: Chen Chun Chen, Chih Chiang Lin
  • Publication number: 20030013331
    Abstract: According to certain aspects of an embodiment of the present invention, a male electrical plug has housing supporting a line blade and neutral blade and a grounding pin which are oriented for insertion into a conventional electrical outlet. The housing is sized to permit it to be inserted through drain plug openings that are less than 1 inch in diameter. In one embodiment, the housing of the plug is formed such that the wall thickness around the line and neutral blades is as thin as {fraction (3/32)} of an inch and the wall thickness around the ground pin is less than {fraction (3/32)} of an inch. In one embodiment the wall thickness around the ground pin on the order of {fraction (1/16)} of an inch. The ground pin may be offset inwardly within the housing to provide additional wall thickness around the ground pin, thereby increasing the structural rigidity of the plug.
    Type: Application
    Filed: July 10, 2002
    Publication date: January 16, 2003
    Inventors: Thomas K. Reusche, Donald B. Owen
  • Patent number: 6454612
    Abstract: The present invention relates to a wall plug which includes a housing and a cover. The housing has the full height of the plug body and includes concave surfaces at the outer side thereof. The cover is engaged into the opening of the housing and fixed therein so that the housing encloses the cover. Accordingly, the assembly is made more easily, the strength is intensified and the wall plug is easily removed from the wall socket.
    Type: Grant
    Filed: September 6, 2001
    Date of Patent: September 24, 2002
    Inventor: Ming-Shan Wang
  • Patent number: 6447309
    Abstract: An apparatus for suppressing power bus bouncing in a hot-swappable system has been developed. The apparatus includes a connection module with three interior pins for: the power return; the power supply; and the system ground. The system ground pin is shorter than the other two so that it makes contact with the power bus after the bouncing from the return and supply pins has subsided.
    Type: Grant
    Filed: December 12, 2000
    Date of Patent: September 10, 2002
    Assignee: Sun Microsystems, Inc.
    Inventors: Han Y. Ko, Robert C. Cyphers, Tomonori Hirai, Keith Y. Oka, Alan D. Martin
  • Patent number: 6419505
    Abstract: A female plug coupling having three plug openings to accommodate the current conductors and the ground conductor of a male plug coupling. The female plug coupling includes an insert constructed whereby all the crimp connections lie in a single plane to facilitate crimping on the conductor ends to the female plug coupling.
    Type: Grant
    Filed: April 19, 2001
    Date of Patent: July 16, 2002
    Assignee: Taller GmbH
    Inventor: Thomas Waible
  • Publication number: 20020086567
    Abstract: A modular junction box receptacle includes parallel high and low voltage circuitry portions separated by a barrier. A base housing of the receptacle receives a termination block that includes high and low voltage connections to respective high and low voltage portions of the base housing. A housing cover is installed over the base housing and termination block; the cover has an opening for passage thereinto of a face portion of the block. The receptacle accommodates a plug and play unit containing smart circuitry, the unit including high and low voltage circuitry connections for respective high and low voltage portions of the termination block. The unit can act as a variety of interchangeable devices in a smart system that incorporates pluralities of receptacles, including electrical outlets and simple electrical toggle switches, each containing low voltage connections. A plurality of such units may be incorporated in, for example, a household circuitry system.
    Type: Application
    Filed: February 5, 2002
    Publication date: July 4, 2002
    Inventor: Ronald G. Cash
  • Publication number: 20020072259
    Abstract: An apparatus for suppressing power bus bouncing in a hot-swappable system has been developed. The apparatus includes a connection module with three interior pins for: the power return; the power supply; and the system ground. The system ground pin is shorter than the other two so that it makes contact with the power bus after the bouncing from the return and supply pins has subsided.
    Type: Application
    Filed: December 12, 2000
    Publication date: June 13, 2002
    Inventors: Han Y. Ko, Robert C. Cyphers, Tomonori Hirai, Keith Y. Oka, Alan D. Martin
  • Patent number: 6383003
    Abstract: An environmentally sealed electrical connector system for connector boxes used in the proximity of water includes an anchored connector which mounts into the face plate of the box from the rear, to facilitate making wiring connections in the box before installing the face plate. A mating plug-in connector forms an environmental seal around the connector contacts when mated with the anchored connector, and locking arms secure the plug-in connector to the face plate when mated. A two-piece construction allows the plug-in connector to have hard portions for locking, and soft portions for sealing.
    Type: Grant
    Filed: December 1, 1999
    Date of Patent: May 7, 2002
    Inventor: Sergio Corona
  • Patent number: 6379164
    Abstract: A wiring system for providing electrical service to a structure allows all electrical service ports to be wired in series. The electrical service ports consist of a junction box in electrical communication with a receptacle. The functionality of the receptacle is determined solely by a processor, which is preconfigured (i.e., preset or preprogrammed) to determine the functionality of that specific electric receptacle. Thus any receptacle, in electrical communication with any junction box in the wiring system, where the junction boxes are wired in series, could be a switch, a switched outlet, a switched light or the like without the necessity of wiring a particular junction box in a manner to provide that receptacle's functionality.
    Type: Grant
    Filed: August 21, 2000
    Date of Patent: April 30, 2002
    Inventor: Ronald G. Cash, Jr.
  • Patent number: 6361333
    Abstract: The present invention provides an improved electrical junction box wherein the electrical wires from a building's electrical system are terminated by connection to a set of terminal strips and lugs in a secure area of the junction box housing rather than directly on an electrical receptacle device that is mounted on and connected to the junction box housing. In accordance with the instant invention, an improved electrical junction box provides at least one set of plug-and-play electrical terminals into which electrical receptacle devices plug directly, without any need for additional hard wiring, stripping, pig tailing, or the like. In a preferred embodiment of the instant invention, all electrical wires terminate in a secure, non-confined area of the junction box, thereby reducing the hazard of electrical shock as well as the risk of electrical fire.
    Type: Grant
    Filed: May 8, 2000
    Date of Patent: March 26, 2002
    Inventor: Ronald G. Cash, Jr.
  • Patent number: 6328581
    Abstract: A universal electric adapter includes a casing injection-molded from plastics, the casing having a front face panel, two lateral receiving chambers, a middle receiving chamber, a locating groove inside the middle receiving chamber, a plurality of coupling flanges radially inwardly disposed around a rear open side thereof, a positioning projection radially inwardly suspended in the rear open side, and two locating grooves bilaterally disposed at the periphery thereof; two metal contact frames respectively installed in the lateral receiving chambers the metal contact frames each having a protruded contact strip; a grounding frame installed in the middle receiving chamber, the grounding frame having a contact base, and a locating flange fastened to the locating groove inside the middle receiving chamber; a plug member fastened to the rear open side of the casing, the plug member having a plurality of metal prongs adapted for fastening to an electric socket, a plurality of coupling grooves spaced around the perip
    Type: Grant
    Filed: August 15, 2000
    Date of Patent: December 11, 2001
    Inventors: Chiu-Shan Lee, Shen Su-Chen Li
  • Patent number: 6290533
    Abstract: An electrical plug incorporates a light beam between the prongs of the plug. The light beam is forwardly directed such that the plug can illuminate a socket where the plug is to be inserted. The plug body includes a circuit board having a light, resistor, battery and switch. A first type of switch that is used includes a push button attached to a spring and contact pads mounted on the circuit board, wherein when the button is pressed the spring electrically connects contact pads within the circuit thus closing the circuit and activating the light. A second type of switch that is used incorporates contact pads and a flexible cover having a pair of electrically conductive leaves hingedly attached to its underside. When an exterior surface above the cover is pressed the leaves move upward and electrically connect contact pads within the circuit thereby closing the circuit and activating the light.
    Type: Grant
    Filed: October 5, 2000
    Date of Patent: September 18, 2001
    Inventor: Jane Major
  • Patent number: 6290512
    Abstract: A premold for housing the electrical contacts of an electrical connector has a base with a plurality of channels extending from a front surface to a rear surface thereof, each of the channels accommodating therein an associated electrical contact. An intermediate wall extending transversely across each of the channels divides them into a front portion extending from the front surface to the intermediate wall and a rear portion extending from the intermediate wall to the rear surface. The front portion of each channel accommodates an engageable portion of the electrical contact and the rear portion accommodates a connector end of the electrical contact for connecting it to an electrical cord. The front portion and the rear portion of the channels shield the electrical contacts from inadvertent contact.
    Type: Grant
    Filed: May 12, 2000
    Date of Patent: September 18, 2001
    Assignee: Hayco, Inc.
    Inventor: Thomas M. Mullen, Jr.
  • Patent number: 6267627
    Abstract: A power plug having a housing, a bus fuse, two power prongs, one ground prong, and a cover. The bus fuse is held in mounting appendages at the two sides of a chamber cover such that the bus fuse enters an internal chamber when the chamber cover is placed on the housing. A notch formed on each of the two ends of the chamber cover facilitates removal. The chamber has a downward oriented opening and four insertion holes and a post formed along the center and two sides provide for the insertion of two power prongs and one ground prong, which in conjunction with the bus fuse forms a protective circuit. The cover of the housing has a hand hold on the side to facilitate removal from mains outlets.
    Type: Grant
    Filed: November 22, 1999
    Date of Patent: July 31, 2001
    Inventor: Tien-Hui Lin
  • Patent number: 6227883
    Abstract: An electric combination socket, which includes a socket body having a face panel, an upper round ground slot provided at the face panel on the middle at a top side, flat hot and neutral slots arranged in parallel at the face panel below the upper round ground slot for matching with the upper round ground slot to receive an electric plug from an electric home appliance, a flat ground slot provided at the face panel between the hot and neutral slots for matching with the hot and neutral slots to receive a computer power plug, and a coupling groove provided at the face panel around the hot and neutral slots and the flat ground slot for receiving the shell of a computer power plug, a ground terminal mounted in the flat ground slot, hot and neutral terminals respectively mounted in the hot and neutral slots, and a ground frame at a rear side of the socket body remote from the face panel, the ground frame comprising a top contact portion inserted into the upper round ground slot at the socket body, and a bridge por
    Type: Grant
    Filed: April 20, 1999
    Date of Patent: May 8, 2001
    Inventors: Chiu-Shan Lee, S. S. Chen Li
  • Patent number: 6190212
    Abstract: A premold body forms an assembly to receive male conductors for molding into a plug. The plug to be used with a female receptacle outlet such as for 120 volt AC current. The body firmly holds blades or blades and a ground pin. By using the premold support the assembly may be assembled automatically, saving time and money in cycle time. The assembly may then be simultaneously crimped to more than one wire. The assembly is more reliable holding the conductors against being dislodged or having wild strands, particularly when molded into an outlet plug. The assembly saves labor and material cost and provides greater reliability over the prior art.
    Type: Grant
    Filed: October 20, 1997
    Date of Patent: February 20, 2001
    Assignee: Heyco, Inc.
    Inventors: Donald C. Brown, Michael Y. Shulman
  • Patent number: 6168443
    Abstract: A conductor bridge for holding a plurality of electrically conductive elements includes a monolithic body formed from an electrically non-conductive material. Retainer means are provided for retaining the electrically conductive elements in the body such that they are electrically insulated relative to each other. The retainer means has an open position, in which the conductor elements can be placed in the retainer means, and a closed position, in which the conductor elements can be held in place within the body.
    Type: Grant
    Filed: May 18, 1999
    Date of Patent: January 2, 2001
    Assignee: Heyco Products, Inc.
    Inventors: Thomas M. Mullen, Jr., William J. Coyle, Jr.
  • Patent number: 6072705
    Abstract: power source conversion device capable of eliminating low-frequency radiation consisting of electronic circuit is designed to convent the marketable 2-hole type socket power source into 3-hole type socket so as to restore the characteristics of original 3-hole type power source through human body or electronic appliance housing or referable zero potential point, wherein the third hole is substitutive ground point to develop the effect of electromagnetic screening device built in the electric appliances in general for achieving good grounding and eliminating electromagnetic radiation and effect of electric leakage on human body because of poor insulation or induction, and meantime, through the functions of automatically detecting LIFE and NULL and such lines as actuating, locking, safe and warning, an intelligent power source conversion device with overall functions is well combined.
    Type: Grant
    Filed: July 7, 1999
    Date of Patent: June 6, 2000
    Assignee: Chin-Tong Liu
    Inventor: Yuan-Fang Hsu
  • Patent number: 6071132
    Abstract: An electrical receptacle quick connect for appliances including a rectangular housing secured within a rear panel of an appliance. The housing has a peripheral flange disposed around an outer edge thereof. The peripheral flange has a pair of apertures through upper and lower portions thereof. The apertures receive threaded screws therethrough for securing the housing to the appliance. A three prong plug extends outwardly of the housing. The three prong plug is adapted for coupling with an appliance extension cord whereby the appliance extension cord couples with an electrical outlet. The three prong plug has wiring extending outwardly therefrom. The wiring includes a pair of wires for coupling with a motor winding of the appliance. The wiring includes a ground wire.
    Type: Grant
    Filed: June 18, 1998
    Date of Patent: June 6, 2000
    Inventor: Jesse J. Cook
  • Patent number: 6053750
    Abstract: A plug bridge for an electric appliance plug for connection of electric appliances to an outlet of an alternating current network, wherein the appliance plug is formed as a unit by the plug bridge joined to the end part of the appliance cord and enclosed by injection-molding, which unit consists of a form-stable insulating element for receiving and fixing the current conductor contact pins where the contact pins are integrated in insulating element apertures matching their cross section. The contact pins protrude relative to the plug bridge and the appliance plug sufficiently far for insertion in an electric outlet and are suited for connection, on lugs disposed inside the appliance plug contour and protruding relative to plug bridge plane, to the respective leads of the electric cord. The insulating element includes transverse to the plane of the contact pins a receiving aperture for insertion of an insert element supporting a ground prong.
    Type: Grant
    Filed: September 12, 1997
    Date of Patent: April 25, 2000
    Assignee: Taller GmbH
    Inventor: Thomas Waible
  • Patent number: 5662484
    Abstract: A bridged electrical plug in which blade elements have integral cup-like and blade contact portions and an intermediate neck twisted to bring openings of the cup-like portions into transversely spaced parallel directions.
    Type: Grant
    Filed: August 31, 1995
    Date of Patent: September 2, 1997
    Assignee: ETCO Incorporated
    Inventor: Stephen A. Blanche
  • Patent number: 5647751
    Abstract: A female receptacle adapted for electrical connection to a male plug includes a premold for housing a pair of clothes-pin type metal female contacts and a D-shaped metal female pin. The premold, which may be made from a relatively rigid material, is housed within an overmold made from a less rigid material. The premold can be of a locking variety or a non-locking variety.
    Type: Grant
    Filed: September 22, 1995
    Date of Patent: July 15, 1997
    Inventors: Michael Y. Shulman, Yook K. Chan, Henry F. Skoczylas, Suzanne V. Hickey, Nicholas K. Katzenberger
  • Patent number: 5622509
    Abstract: The disclosure is directed to a 3-prong grounded electrical connector which has a flexible and resilient grounding prong. The resilient grounding prong helps to maintain the connector in mating engagement with an electrical receptacle when the connector is laterally disturbed.
    Type: Grant
    Filed: January 31, 1996
    Date of Patent: April 22, 1997
    Inventors: Ralph D. Smythe, Tony T. Brechtl
  • Patent number: 5603638
    Abstract: A housing for female receptacles in a molded female receptacle plug has a body and cover to receive female receptacle connectors. The housing is a premold for the receptacle plug. Female receptacles may be engaged in the housing and simultaneously crimped to wires in a cord set. The body and cover are interengagable. They can be snap fit or slide fitted together with female receptacle crimp ends on necks extending through the housing safe from mold plastic flashing in molding, when load bars are conventionally engaged into blade openings in the housing. The assembly of the housing and female receptacle is automatable with labor and material economies obtained in the molding and from automatable assembly and simultaneous crimpability of the engaged female receptacles.
    Type: Grant
    Filed: July 20, 1995
    Date of Patent: February 18, 1997
    Assignee: Heyco Stamped Products, Inc.
    Inventors: Donald C. Brown, Suzanne V. Hickey, Yook K. Chan, Henry F. Skoczylas, Michael Shulman
  • Patent number: 5595491
    Abstract: A 240 volt electrical circuit comprised of modular components which quickly assemble in a manner such that all wiring is completed in the electrical box prior to installing the 240 volt receptacle module, thereby eliminating the need for extra length wires in the electrical box and the cumbersome wiring practices associated with conventional 240 volt electrical circuits. The 240 volt receptacle module plugs into the prewired electrical box, thereby providing quick and easy removal and replacement of the module in the event of failure. The 240 volt electrical circuit is self-configured by simply assembling the modular components. A dedicated earth ground is self-distributed to each electrical component with no effort on the part of the installer, thereby providing safer electrical circuits.
    Type: Grant
    Filed: February 1, 1996
    Date of Patent: January 21, 1997
    Inventor: Lindy L. May
  • Patent number: 5582520
    Abstract: A removable electrical receptacle adapted to be operatively connected to a continuous outlet cable having an insulating housing comprised of a case and a cover and having contacts for three electrical plugs.
    Type: Grant
    Filed: June 29, 1995
    Date of Patent: December 10, 1996
    Assignee: Siemens Electric Limited
    Inventor: Robert Doudon
  • Patent number: 5474459
    Abstract: An inner plug core of a power plug is provided. The inner plug core includes a main body which is formed with an upper insert hole, a lower left insert hole and a lower right insert hole located substantially at three corners of a triangle defined thereby. A C-shaped tongue member is disposed under the upper insert hole and extends toward a front side of the inner plug core. The tongue member has a bottom transverse plate connected to the main body of the inner plug core by a reinforcing triangular support plate. The tongue member further has a top transverse plate on which an elliptic boss is disposed for receipt within a corresponding elliptic hole formed in a grounding terminal. The top transverse plate of the tongue member is cantilevered to serve as a force arm. Thus, only a light force is needed to press down the transverse plate of the tongue member, permitting the grounding terminal to be easily inserted into the upper insert hole.
    Type: Grant
    Filed: June 14, 1994
    Date of Patent: December 12, 1995
    Inventor: Tun L. Su
  • Patent number: 5411403
    Abstract: An electrical plug with power blades in a power bridge portion and a ground pin in a ground bridge portion, the portions being non-integrally joined.
    Type: Grant
    Filed: June 2, 1994
    Date of Patent: May 2, 1995
    Assignee: ETCO Incorporated
    Inventor: Stephen A. Blanche
  • Patent number: 5378162
    Abstract: A plug bridge for an electrical appliance plug having a pair of conductor pins in which the power cord leads are attached by a thermal joining process such as welding or soldering. Insertion channels are formed within the insulating element of the plug bridge to prevent portions of the power cord leads from contacting one another. The conductor pins are constructed from flat sections including a 90.degree. turn of a connecting portion for proper attachment of the power cord leads.
    Type: Grant
    Filed: March 25, 1994
    Date of Patent: January 3, 1995
    Assignee: Taller GmbH
    Inventor: Thomas Waible
  • Patent number: RE36829
    Abstract: An electrical plug with power blades in a power bridge portion and a ground pin in a ground bridge portion, the portions being non-integrally joined.
    Type: Grant
    Filed: August 28, 1996
    Date of Patent: August 22, 2000
    Assignee: ETCO Incorporated
    Inventor: Stephen A. Blanche