Modular two-prong polarized electrical plugs and plug adaptors provided with indicia modules that can be inserted into recesses on the plug housings and adaptor bodies. The indicia modules include indicia elements. By inserting the indicia modules on the proper sides of the plug housings or adaptor bodies, the tops of the plugs and adaptors can be readily identified for purposes of verifying the orientation of the plugs and plug adaptors when and after plugging them into electrical outlets.

A connector for sealably engaging contacts therein and permitting reliable disengagement thereof includes a first unit having one or more elongated shafts. Each elongated shaft includes at least one first contact. The connector further includes a second unit having a body with one or more channels therein. Each channel includes at least one second contact. Each channel is configured to receive at least a portion of one of the elongated shafts therein to permit electrical connection of the one or more first contacts to the respective one or more second contacts. The second unit further includes an axial slit extending radially outwardly from each channel toward an outer surface of the body of the second unit. Each slit of the second unit is a circumferentially discontinuous portion of the channel configured to prevent the second unit from forming a constrictive belt around the one or more elongated shafts therein.

A connector for sealably engaging contacts therein and permitting reliable disengagement thereof includes a first unit having one or more elongated shafts. Each elongated shaft includes at least one first contact. The connector further includes a second unit having a body with one or more channels therein. Each channel includes at least one second contact. Each channel is configured to receive at least a portion of one of the elongated shafts therein to permit electrical connection of the one or more first contacts to the respective one or more second contacts. The second unit further includes an axial slit extending radially outwardly from each channel toward an outer surface of the body of the second unit. Each slit of the second unit is a circumferentially discontinuous portion of the channel configured to prevent the second unit from forming a constrictive belt around the one or more elongated shafts therein.

Disclosed herein is a mobile device charger. A mobile device charger, comprising a housing having a connector to a mobile device; an inner cavity configured to house one or more extensions, wherein the one or more power connectors are at least: a male USB connector, a male outlet plug connector, or a male cigarette lighter connector. The housing can comprise a cover, wherein the cover is configured to conceal the inner cavity of the housing. The mobile device charger is configured to have a retracted position and an extended configuration for the power connectors. The mobile device charger further comprising an extender fixture to secure the mobile device.

Disclosed herein is a mobile device charger. A mobile device charger, comprising a housing having a connector to a mobile device; an inner cavity configured to house one or more extensions, wherein the one or more power connectors are at least: a male USB connector, a male outlet plug connector, or a male cigarette lighter connector. The housing can comprise a cover, wherein the cover is configured to conceal the inner cavity of the housing. The mobile device charger is configured to have a retracted position and an extended configuration for the power connectors. The mobile device charger further comprising an extender fixture to secure the mobile device.

A set of cable connectors for electric motor vehicle is disclosed, which includes: a first connector and a second connector; a signal terminal module and a power terminal module are separately arranged on the first connector and the second connector, a first protective cover ring is disposed on the first connector, and a second protective cover ring is disposed on the second connector; when the first connector is combined with the second connector, a double protective cover ring structure can be formed, so that the combination of the first connector and the second connector simultaneously provides a combining force between signal terminals, a combining force between power terminals, combining forces of the two protective cover rings, and a combining force between the buckle portions disposed on the first and second connectors.

A magnetic connector assembly has a female connector with spring-loaded conductive pins slightly protruding inside a recess or cavity in the female connector's body. A corresponding male connector has a protrusion on its body with conductive pins slightly indented into the protrusion's surface. The protrusion on the male connector is sized and shaped to fit into the cavity in the female connector such that the male connector's pins engage the pins of the female connector, allowing for electrical communication across the connector assembly. Magnets on the male and female connectors secure them in a correct orientation. A unique shape ensures proper alignment of the pins and prevents the connection of incompatible devices.

One embodiment includes an electrical tanker aircraft for in-flight recharging a worker aircraft, comprising: a charge source; an umbilical to engage an in-flight charge recipient aircraft; and control logic to determine that the umbilical has engaged the charge recipient aircraft, and to transfer charge until a termination condition is met.

One embodiment includes an electrical tanker aircraft for in-flight recharging a worker aircraft, comprising: a charge source; an umbilical to engage an in-flight charge recipient aircraft; and control logic to determine that the umbilical has engaged the charge recipient aircraft, and to transfer charge until a termination condition is met.

It is aimed to provide a connector capable of properly exhibiting functions of a detection piece. A connector is provided with a housing (10) including a cavity (16), a terminal fitting (40) to be inserted into the cavity (16) from behind and including a tubular box portion (41) having open front and rear surfaces, a tab (31) of a mating terminal fitting (30) being inserted into the box portion (41) from front, and a retainer (60) to be mounted into the housing (10) and including a detection piece (64) capable of coming into contact with a rear end of the box portion (41). The detection piece (64) includes a recess (73) for avoiding interference with the tab (31) passed through the box portion (41).