Abstract: A power supply and an adaptor plug therefor, wherein a slot with a guide rail is provided at the bottom at one end of the power supply. Two body spring leaves connected to a circuit board of the power supply extend through and protrude from two body spring leaf holes in the power supply. The adaptor plug is provided with a guide groove. Two insertion leg spring leaves on the two insertion legs of the adaptor plug extend through and protrude from two insertion leg spring leaf holes on the adaptor plug. The adaptor plug is installed in the slot of the power supply by a joint formed by the guide groove and the guide rail. The insertion leg spring leaves and the body spring leaves contact each other.

Abstract: An electrical adapter having a face panel with different blade and grounding prong insertion holes for receiving different electrical plugs, a track at its back side adapted to receive one of a set of plug members, a plug unit and a socket unit arranged at two opposite lateral sides so that a plurality of electrical adapters can be connected in series by plugging the plug unit of one electrical adapter into the socket unit of another, and an electrical circuit consisting of a voltage regulator, a voltmeter, a voltage stabilizer, a power switch and a surge absorber.

Abstract: A socket-compatible plug which includes a plug body with a plurality of holes, plurality of plug pins respectively insertable into selected ones of the plurality holes, and a medium mounted into respective selected ones of the plural holes for urging selected ones of the plurality of plug pins beyond the respectively selected ones of the plurality of holes. The plug further includes a back cover. The plurality of holes of the plug body includes a medium-mounting hole and the selected ones of the plurality of holes. Each of the selected ones can include a plug pin positioning region and a medium positioning region. The plug pin positioning region can include an upper edge and the plug pin includes a flange engaged with the upper edge. The back cover urges the medium to the medium positioning region, while the plug body is assembled with the back cover.

Abstract: An adapter with interchangeable plug board (3) that can be easily interchanged for various types of receptacles is provided. The adapter includes a casing (1), a cover (2), and a plug board (3). The casing (1) is formed with first insetting means such as a plurality of slots (13, 14b, 14c). In addition, an upright slide slot (16) is formed on one sidewall of the casing (1). A sliding piece (17) is slidably inset in the slide slot (16). The sliding piece (17) is formed with a stop tongue (170) on the top and is lockable at least at a top position and a lower position. The plug board (3) has a base board (30) and a plurality of plug pins (31) erected thereon. Further, the base board (30) is formed with second insetting means such as a plurality of tongues (33, 34) for forming a tongue-and-slot joint with the first insetting means on the casing (1). A stop slot (35) is formed near the rear edge of the base board (30).

Abstract: A charger with replaceable electrical plugs includes a casing 1 including a lower casing 11 and an upper casing 12. An electronic power supply circuit 13 is accommodated inside the casing 1. The lower casing 11 has an opening 111 having a replaceable two prong electrical plug 14 pivotally disposed therein to adapt to different specifications of electrical sockets used in different countries. The power supply circuit 13 may convert AC into low voltage DC for use, through a cable 131, by small electrical appliances. The upper housing 12 is provided with a tubular recess 121 pivotally provided with a cigarette lighter plug 15 which may fit into a car's cigarette lighter socket. The power supply circuit 13 may transform the car's high voltage DC into a low voltage DC to provide electric power outdoors. The pivotally disposed plug 14 may be replaced with a non-pivotal plug 14' (FIG. 6).

Abstract: A universal adapter includes: a casing combinable with a front cover and a rear cover having a pair of outlet sockets formed in the rear cover to output power, a first plug having a pair of rectangular-shaped pins slidably held in an upper chamber in the casing and operatively pushed or pulled by a pair of first seesaw buttons pivotally secured on two opposite sides of the first plug for a convenient extending or retraction of the first plug, whereby upon extending of the first plug, a rectangular-shaped pin of "grounding pin" will be simultaneously biased for its forward extending to form triple rectangular-shaped pins for connecting municipal power such as in England or Africa to be output through the pair of outlet sockets in the rear cover; a second plug having a pair of flat blades slidably held in a lower chamber in the casing and operatively pushed or pulled by a pair of second seesaw buttons for a convenient extension or retraction for connecting municipal power to the two outlet sockets; and a third

Abstract: A safety socket and plug arrangement in which the socket has a spring-supported safety baffle plate blocking in the plug blade insertion slots, the safety baffle plate being moved out of the plug blade insertion slots when the metal contact blades of an electric plug are inserted into the plug blade insertion slots, or tilted and stopped in place when a child inserts a rod member into one plug blade insertion slot; the plug includes a plug shell and a replaceable plug head detachably coupled to the plug shell for connection to an electric socket.

Abstract: A power supply with interchangeable plug capacity and interchangeable power input modules includes a casing, an electrical plug detachably mounted in the casing, allowing the user to accommodate various power source configurations and voltage supply levels without manually setting the unit for the available power source, resulting in increased user safety and convenience. Releasable locking mechanisms are included to engage the interchangeable electrical plug. The locking mechanisms can be released by a user to allow the plug to be moved to the detached position. A preferred form of electrical connection between a detachable plug and casing comprises a submerged conductor configuration to protect the user or passerby from electric shock. A variety of interchangeable electrical plugs can be fitted to the same casing for interface with a transformer in the power supply casing.

Abstract: Disclosed is a charger unit for charging a rechargeable energy storage device. In particular, a universal charger unit is disclosed which comprises a connector having a set of externally accessible contacts for making electrical contact with a corresponding set of receptor contacts on a rechargeable energy storage device. The connector, which may comprise a removable module, also preferably includes a sensor to interact with the structure of the receptor on the rechargeable device, so that the output of the charger unit can be regulated to be compatible with the electrical characteristics of the rechargeable device as determined by the sensor. The charger unit and/or connector may include one or more replaceable electronics modules.

Abstract: An electrical outlet for receiving electrical plugs of several types and providing different voltages to different plugs is disclosed.

Abstract: An interchangeable plug device includes a casing, an electrical plug detachably mounted in the casing and movable between a detached and an operative position, and a releasable locking mechanism designed to engage the electrical plug to maintain the plug in an operative position. The locking mechanism can be released by a user to allow the plug to be moved to the detached position. A preferred form of locking mechanism is a depressible lock bar connected to or integral with an electrical plug body, which is designed to engage a detent in a casing. A preferred form of electrical connection between a detachable plug and casing comprises a submerged pin and sleeve configuration to protect the user or passerby from electric shock. A preferred form of conducting prong is collapsible within the carrier and is securable in an extended position to avoid inadvertent collapse. A variety of interchangeable electrical plugs can be fitted to the same casing.

Abstract: A collapsible plug device includes a casing, an electrical plug rotatably mounted in the casing and movable between a collapsed and an extended position, and a releasable locking mechanism connected to the casing and designed to engage the electrical plug to maintain the plug in an extended position. The locking mechanism can be released by a user to allow the plug to be moved to the collapsed position. A preferred form of locking mechanism is a slidable lock bar which is designed to engage a detent in a rotatable shaft which is connected to or integral with an electrical plug body.A cradle or attachment can be integrated into the casing, with an electrical connection and a mechanical connection so that a rechargeable battery or a device containing such a battery can be electrically and mechanically attached to the cradle. Alternatively, a cable can be fitted with a power adapter plug and electrically connected to the basic device.

Abstract: A universal power transformer (101) is for connection to an AC power source and produces a regulated DC voltage at an output thereof. The power transformer includes a power transformer housing (102) with a recess (114). A universal power converter circuit (313) is positioned in the housing. Connector prongs (108, 110) are electrically coupled to the circuit and are movably carried on the housing at a position adjacent the recess. The prongs move between an outwardly extending position, projecting from the housing for connection to a first type of power supply connector, and a retracted position, extending into the recess for storage during transport of the power transformer and for connection to an adapter (103-106) positioned in the recess, to connect to a second type of power supply connector.

Abstract: A collapsible prong plug device includes a casing, an electrical plug with one or more prongs rotatably mounted in the casing and movable between a collapsed and an extended position, a securing means designed to engage the electrical plug to maintain the plug in an extended position, and a releasable securing means. The securing means can be released by a user to allow the plug to be moved to the collapsed position. A preferred form of securing mechanism is a spring and a preferred form of release means is a slidable collapse bar, designed to engage and rotate the prongs.A cradle or attachment means can be integrated into the casing, with an electrical connection and a mechanical connection so that a rechargeable battery or a device containing such a battery can be electrically and mechanically attached to the cradle. Alternatively, a cable can be fined with a power adapter plug and electrically connected to the basic device.

Abstract: A device is described for supplying electrical current to electric appliances, especially mobile appliances. The device has a plug housing (1) equipped with an electric plug which houses the electrical and electronic components supplying the current. To simplify the use of the device with various electric socket configurations, several interchangeable adapter plugs (17) are provided which can be releasably attached to the plug housing (1). Each adapter plug has contact pins which are shaped and arranged according to electric socket configurations used in various countries. The adapter housing has contact springs (20) which are electrically coupled to the contact pins (19) and which contact corresponding current supply contact surfaces (8) carried by the plug housing (1). The plug housing (1) has a recess (2) into which a tongue (8) of an electronic circuit board (6) protrudes and on which the contact surfaces are formed.

Abstract: A jack-type plug in the form of a connecting plug includes a central contact pin for one conductor and a resilient contact element in the region of the outside surface of the plug for the other conductor, the plug having an axially elongate male part for mating with a female part constituting a part of the current socket receiving the plug. To enable the same plug to be used for two differently dimensioned current sockets the male part in forming of two parts with different cross-sectional dimensions so that the one male part mates with the female part of a current socket and the other male part mates with the female part of another socket, this part having a different cross-sectional area from the first mentioned female part. In addition, the smaller male part carries the central contact pin and is movable in the larger male part, but no farther than to permit the pin to remain axially projecting outside the larger male part.

Abstract: An electrical adaptor or connector (1) comprising a housing (2), a carrier member (5) rotatably mounted on the housing, a plurality of selectable pin arrays (7) disposed on the carrier member and adapted whereby rotation of the carrier relative to the housing brings the pin arrays into their operative condition one at a time, a plurality of socket arrays (6) on the housing and an apertured member (4) rotatably mounted on the housing whereby rotation of the member (4) brings a selected one of the plurality of socket arrays (6) into an operative condition, one at a time. The member (4) is held in each indexed position by detent member (15). The pins of the plurality of selectable pin arrays (7) are pivotally mounted on the carrier member (5) so that they can be moved from a retracted inoperative position to an outwardly extended position in which they also become electrically connected to the socket array.

Abstract: An electrical plug selectively insertable into receptacles having different configurations of apertures for effecting selectable electrical connections. A plurality of contact prongs have extended positions in which they project exteriorly of a housing. Each of an appropriate subset of these prongs is adapted automatically to sense and enter matching apertures of a selected receptacle. The remaining prongs during such entry are moved inward of the housing by contact with and movement relative to a surface of the selected receptacle adjacent to the apertures, and cause prongs of the subset to be locked in their extended positions as they enter the matching apertures.

Abstract: A connector device comprises a housing and a connector body coupled to one end of the housing. One hard disk drive package is inserted in the inner space of the housing which is constituted by first and second decks. When the hard disc drive package is not inserted in the inner space of the housing, two memory cards are inserted in the first and second decks, respectively.

Abstract: An elastic pressure member is disposed between adjacent first elastic contacts arranged on a base member such that the elastic pressure member corresponds to second contacts arranged on a cover member. Parts of the plurality of leads arranged on an electric part are given contact pressure by elasticity of the first contacts, and the remainder of the leads are given contact pressure against the second contacts by elasticity of the elastic pressure member.

Abstract: An electrical plug for the end of an electrical power cord. The plug includes prongs which are movable between retracted and extended positions. The prongs can be locked in the retracted and extended positions, as desired. When the prongs are locked in the retracted position, small children are prevented from attempting to connect the power cord to an electrical outlet.

Abstract: A dual functional, electrical plug use in connection with an electric appliance which includes a plug receiving member having a pair of cylindically shaped grooves and attached to the electric appliance, a casing member adapted to receive the plug receiving member, a first plug member having a pair of cylindrical shaped electrical pin member and a pair of rectangular shaped grooves and rotatably mounted to the plug receiving member, and a second plug member having a pair of rectangular shaped electrical pin member and rotatably mounted to the first plug member, whereby the first and second plug members form a composite structure enabling the selective use of either the first plug member or the second plug member depending upon high voltage usage or low voltage usage.

Abstract: A plug-in electrical converter device is set forth wherein a removable face containing one of a plurality of various 220 volt connector plugs is selectively securable to a housing containing a plurality of 110 volt outlets with the housing containing a slide connector electrically engageable with a respective strip. Each of the strips accepts one phase of the 220 volt connector plug with a central resilient slide to provide the neutral conductor.

Abstract: A universal connector assembly having a plurality of interchangeable sleeve members for converting the assembly from a male-type microwave device connector to a female-type microwave device connector and vice-versa. Embodiments of the assembly are used for making connections with coaxial microwave electrical connectors and for use in pin depth gauges.

Abstract: A modular power-line attachment cord has a plug with standard pins in a cavity with a locking shoulder. A number of national-standard inserts have cooperating sockets for the pins, and a locking shoulder allowing the insert to be permanently captured in the cavity of the plug.

Abstract: A connector for interconnecting a multiconductor cable and a printed circuit board. The connector includes means for receiving and contacting individual conductors at one end of the conductor housing. It also includes at the other end means for plugging the connector onto a printed circuit board so that electrical contact is made between the conductors of the cable and contact strips on the printed circuit board.

Abstract: A dual gender electrical connector is made up of a "male" member, a "female" member, and a positioning means. The positioning means may be integral with either the male or female member, and/or a part of any shielding used. The male member is made up of a non-conductive support material of predetermined thickness in which electrically conductive electrical contacts are embedded in parallel. Short lengths of the electrical contacts are exposed on the rear end for connection to electrical conductors. Longer lengths of electrical contacts are exposed on the front end. The female member is made up of an electrically non-conductive support material of the basic form and often the same material as the male member, though not the same depth as the male member. Tubes having a length equal to approximately the depth of the female member support material are positioned within the support material so as to be capable of sliding over and in contact with the electrical contacts of the male member.