# US 2013/0157484 A1 · Wing-shaped and combined retractable plug

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- Number: US 2013/0157484 A1
- Document ID: US20130157484A1
- Status: Published application
- Kind: A1
- Application number: 13/346,751
- Filed: 2012-01-10
- Published: 2013-06-20
- Earliest claimed: 2011-12-20
- Assignees: Kass International Industrial Limited
- Inventors: Chi Sang CHIU
- Web page: https://patentgrep.com/patent/US20130157484A1

## CPC

- H01R 27/02: for simultaneous co-operation with two or more {dissimilar} counterparts
- H01R: ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS

## Abstract

The invention discloses a wing-shaped and combined retractable plug, a front end as a fixed connector and two opposite lateral sides as a first retractable connector and a second retractable connector. The incorporation of the fixed connector, and the first and second connectors through the upper and lower shells results in a combined plug, which may charge up to three devices simultaneously or be used for data transmission with one device. The combined plug may contain different types of interfaces, so that the types and number of the connectors required to be carried are reduced. Since connecting wires are connected directly to the fixed connector and the first and second connectors, the transmission circuit resistance is reduced and more devices may be simultaneously charged and connected for data transmission. Compared with plugs in the prior art, the present combined plug is small sized and easy to operated.

## Claims

### Claim 1

A wing-shaped and combined retractable plug, characterized in that a fixed connector is provided at a front end of the plug, and a first retractable connector and a second retractable connector are respectively provided at two opposite lateral sides of the plug.

### Claim 2 (depends on 1)

The retractable plug of claim 1, further comprising an upper shell and a lower shell, which are engaged with each other in one piece.

### Claim 3 (depends on 1)

The retractable plug of claim 1, wherein the fixed connector is an Apple 30-pin connector or a USB A/M connector.

### Claim 4 (depends on 2)

The retractable plug of claim 2, wherein the first and second connectors are disposed symmetrically at the opposite lateral sides of the upper and lower shells between the upper and lower shells.

### Claim 5 (depends on 4)

The retractable plug of claim 4, wherein two bores for guide pole are provided on an engaging face of each of the upper and lower shells, with said two bores of the upper shell facing said two bores of the lower shell, and guide poles corresponding to the bores are disposed on each of the first and second connectors, thereby enabling the first and second connectors to be rotatablely disposed between the upper and lower shells.

### Claim 6 (depends on 5)

The retractable plug of claim 5, wherein each of the upper and lower shells is provided with grooves for accommodating the first and second connectors, to enable the first and second connectors to be retractably amounted on said two lateral sides of the upper and lower shells.

### Claim 7 (depends on 6)

The retractable plug of claim 6, wherein the grooves are positioned at lateral sides of the upper and lower shells, and the grooves of the upper and lower shells match with each other to form cavities for receiving the first and second connectors.

### Claim 8 (depends on 1)

The retractable plug of claim 1, wherein the first connector is a Micro-USB connector or a Mini-USB connector.

### Claim 9 (depends on 1)

The retractable plug of claim 1, wherein the second connector is a Micro-USB connector or a Mini-USB connector.