# US 10,371,327 B2 · Rechargeable lighting devices

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- Number: US 10,371,327 B2
- Document ID: US10371327B2
- Status: Granted
- Kind: B2
- Application number: 16/109,578
- Filed: 2018-08-22
- Published: 2018-12-20
- Granted: 2019-08-06
- Earliest claimed: 2013-09-18
- Assignees: Mag Instrument, Inc.
- Applicants: Mag Instrument, Inc.
- Inventors: Anthony Maglica; Benny M Osorio; Stacey H West
- Web page: https://patentgrep.com/patent/US10371327B2

## CPC

- F21L 4/085: {Pocket lamps}
- F21V 23/0414: {specially adapted to be used with portable lighting devices}
- F21V 23/0421: {the switch being part of, or disposed on the tail cap portion thereof}
- F21V 29/70: characterised by passive heat-dissipating elements, e.g. heat-sinks
- F21Y 2101/00: Point-like light sources
- F21Y 2115/10: Light-emitting diodes [LED]
- F21L: LIGHTING DEVICES OR SYSTEMS THEREOF, BEING PORTABLE OR SPECIALLY ADAPTED FOR TRANSPORTATION
- F21V: FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21Y: INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED

## Abstract

A portable rechargeable lighting device uses software in a microcontroller to turn on a charger protection circuit when a charging circuit is activated, to monitor at least one electrical characteristic relative to a rechargeable battery, to control at least one charging parameter of the charging circuit, and to alert a user of a low battery condition before light emitted from the device terminates.

## Claims

### Claim 1

A process for operating a portable rechargeable lighting device, comprising the steps of:
using a battery monitoring circuit to monitor at least one electrical characteristic relative to the at least one rechargeable battery configured within a housing of the portable rechargeable lighting device; and
using software configured within a housing of the portable rechargeable lighting device to turn on a charger protection circuit when a charging circuit is activated.

### Claim 2 (depends on 1)

The process of claim 1, wherein the battery monitoring circuit is comprised of software executed within the housing.

### Claim 3 (depends on 1)

The process of claim 1, comprising the additional step of alerting a user of the portable rechargeable lighting device to a low battery condition before light emitted from the light source terminates.

### Claim 4

A process for operating a portable rechargeable lighting device, comprising the steps of:
using a battery monitoring circuit to monitor at least one electrical characteristic relative to the at least one rechargeable battery configured within a housing of the portable rechargeable lighting device;
using software configured within the housing to control at least one charging parameter of a charging circuit; and
using said software to alert a user of the portable rechargeable lighting device to a low battery condition before light emitted from the light source terminates.

### Claim 5 (depends on 4)

The process of claim 4, wherein the battery monitoring circuit is comprised of software executed within the housing.