High power rechargeable flashlight with two way universal serial bus

Patent metadata

Field	Value
Publication number	US-9843208-B2
Application number	US-201615293543-A
Country	US
Kind code	B2
Filing date	Oct 14, 2016
Priority date	Aug 14, 2013
Publication date	Dec 12, 2017
Grant date	Dec 12, 2017

Abstract

A high power rechargeable flashlight with two-way universal serial bus (USB) capable of recharging electronic devices as well as recharging itself. A bidirectional universal serial bus (USB) adaptor port that can be integrated into a high power rechargeable battery operated flashlight or other rechargeable battery operated device. The invention can utilize a micro-controller to convert a single USB adaptor port into either an input device or an output device. A high power rechargeable flashlight with bidirectional USB adaptor port is capable of recharging external electronic devices, as well as recharging itself through the same port.

First claim

What is claimed is:

1. A flashlight for providing light and powering an external electrical device directly or indirectly connected to the flashlight, said flashlight comprising:
a body member formed in a shape of a flashlight body, the body member having a first end and a second end,
a light member disposed at the first end of the body member;
a light circuit in communication with the light member for energizing the light member under certain conditions, the light circuit disposed within the body member;
a single bidirectional electrical port accessible through the body member;
a rechargeable battery in communication with the light circuit and the single bi-directional port, the rechargeable battery disposed within the body member; and
a microcontroller disposed within the body member
and programmed to allow energy from an external source to travel in a first direction and enter through the single electrical port to recharge the rechargeable battery and also programmed to allow energy from the rechargeable battery to travel in a second direction opposite of the first direction travel and exit through the single electrical port to provide energy to power an external electrical device electrically connected directly or indirectly to the flashlight at the single bidirectional electrical port;
wherein the microcontroller is programmed to allow either the recharging of the rechargeable battery through the electrical port or the powering of the external electrical device connected at the electrical port at a specific instant in time but not both at the same time.

2. The flashlight of claim 1 further comprising a first switch in communication with the microcontroller for controlling operation of the light member.

3. The flashlight of claim 2 wherein when the first switch is selected by a user, the microcontroller is programmed to disable operations through the single electrical port.

4. The flashlight of claim 2 further comprising a second switch in communication with the microcontroller for controlling activating the single electrical port for inputting and outputting energy through the single electrical port.

5. The flashlight of claim 1 further comprising a sheath member secured to the body member, said sheath member movable from a first position where the sheath member is positioned with respect to the body member such that it covers the single electrical port to a second position where the sheath member is positioned with respect to the body member such that the single electrical port is exposed and accessible for use.

6. The flashlight of claim 1 further comprising a battery charging circuit in communication with the rechargeable battery and in communication with the single electrical port, the battery charging circuit disposed within the body member, the battery charging circuit also in communication with the microcontroller.

7. The flashlight of claim 1 further comprising an output power supply circuit in communication with the microcontroller and with the rechargeable battery, the output power supply circuit disposed within the body member and when directed by the microcontroller used for directing energy from the rechargeable battery out of the single bidirectional electrical port and into the external electrical device connected directly or indirectly at the single bidirectional electrical port in order to power the external electrical device.

8. The flashlight of claim 1 wherein the single electrical port is a USB A port, a MINI-A port, a MINI-B port, a MICRO-AB port or a MICRO-B port.

9. The flashlight of claim 1 wherein the single bidirectional electrical port has input and output energy transfer functionalities.

10. The flashlight of claim 1 wherein the single electrical port is a universal serial bus adapter port.

11. The flashlight of claim 1 wherein the single electrical port is a two-way port and acts as an input device when recharging the rechargeable battery and the acts as an output device when the rechargeable battery is providing power for the external second electrical device.

12. The flashlight of claim 2 wherein the microcontroller is programmed such that when a user presses the first switch the rechargeable battery is permitted to provide energy to the light member in connection with the light circuit.

13. The flashlight of claim 6 wherein the battery charging circuit is a switching regulator.

14. The flashlight of claim 1 wherein the external electrical device is adapted for electrical or mechanical coupling to the single electrical port directly or through a cord.

15. The flashlight of claim 7 wherein the output power supply circuit is a buck regulator.

16. A flashlight for providing light and powering charging an external electrical device, said flashlight comprising:
a body member formed in a shape of a flashlight body, the body member having a first end and a second end,
a light member disposed at the first end of the body member;
a light circuit in communication with the light member for energizing the light member under certain conditions, the light circuit disposed within the body member;
a universal serial bus (USB) port with bidirectional capabilities with input and output energy transfer functionalities, said USB port accessible through the body member;
a rechargeable battery in communication with the light circuit, the rechargeable battery disposed within the body member;
a microcontroller disposed within the body member;
a first switch in communication with the microcontroller for controlling operation of the light member; and
a second switch in communication with the microcontroller for controlling activating the USB port for inputting or outputting energy through the USB port;
an output power supply circuit in communication with the microcontroller and with the rechargeable battery, the output power supply circuit disposed within the body member and when directed by the microcontroller used for directing energy from the rechargeable battery out of the single bidirectional electrical port and into the external electrical device connected directly or indirectly at the single bidirectional electrical port in order to power the external electrical device;
wherein the microcontroller is programmed such that when a user selects the first switch the rechargeable battery is permitted to provide energy to the light member in connection with the light circuit and the microcontroller is also programmed to disable operations through the USB port;
wherein when the second switch is selected by the user the microcontroller is programmed to allow energy from an external source to enter through the USB port and recharge the rechargeable battery and to allow energy from the rechargeable battery to exit through the USB port to provide energy to an external electrical device, but not both at a same time;
wherein the USB port is a two-way port and acts as an input device when recharging the rechargeable battery and the acts as an output device when the rechargeable battery is providing power for the external second electrical device.

17. The flashlight of claim 16 further comprising a battery charging circuit in communication with the rechargeable battery and in communication with the USB port, the battery charging circuit disposed within the body member, the battery charging circuit also in communication with the microcontroller.

18. The flashlight of claim 16 wherein the external electrical device is adapted for electrical or mechanical coupling to the USB port directly or indirectly through a cord.

Assignees

• Inskeep Mathew

Inventors

• Inskeep Mathew

Classifications

• H02J7/751

  concerning the insertion or the connection of the batteries · CPC title

• F21L4/085 Primary

  Pocket lamps · CPC title

• H02J7/342

  The other DC source being a battery actively interacting with the first one, i.e. battery to battery charging (with circuits for polarity protection H02J7/68) · CPC title

• F21Y2115/10

  Light-emitting diodes [LED] · CPC title

• F21V23/06

  the elements being coupling devices {, e.g. connectors} · CPC title