Lighting devices

Patent metadata

Field	Value
Publication number	US-9488361-B2
Application number	US-201615014990-A
Country	US
Kind code	B2
Filing date	Feb 3, 2016
Priority date	Jan 13, 2013
Publication date	Nov 8, 2016
Grant date	Nov 8, 2016

Abstract

A flashlight has housing with a first mechanical spiral engagement system, a head assembly with a second mechanical spiral engagement system that engages the first mechanical spiral engagement system when the head assembly is coupled to the housing, an LED light source module fixedly held by a heat sink fixedly held by the housing, a power source held within the housing, and a switch assembly, wherein light provided by the LED light source module may be varied by rotating the head assembly relative to the housing while the heat sink, the switch assembly and the power source remain stationary.

First claim

What is claimed is:

1. A flashlight, comprising:
a housing having a first set of threads;
a head assembly including a spiral nut that includes a second set of threads that engage the first set of threads when the head assembly is coupled to the housing;
an LED light source module fixedly held by a heat sink fixedly held by the housing;
a power source held within the housing; and
a switch assembly;
wherein the light provided by the LED light source module may be varied by rotating the head assembly relative to the housing while the heat sink, the switch assembly and the power source remain stationary.

2. The flashlight of claim 1 , wherein the housing is a barrel and the heat sink is press fit into a forward portion of the barrel.

3. The flashlight of claim 1 , wherein the light provided by the LED light source may be varied between a first adjustment and a second adjustment by rotating the head assembly relative to the housing by about thirty degrees and one of the first and second adjustments is a spot setting while another of the first and second adjustments is a flood setting.

4. The flashlight of claim 2 , wherein the LED light source module is press fit into the heat sink.

5. The flashlight of claim 2 , wherein the heat sink holds the LED light source module in a stationary position at or near a forward end of the barrel.

6. The flashlight of claim 2 , wherein the heat sink forms a ground path by contacting a housing of the LED light source module and a ground contact of the switch assembly.

7. A flashlight, comprising:
a housing having a first mechanical spiral engagement system;
a head assembly that includes a second mechanical spiral engagement system that engages the first mechanical spiral engagement system when the head assembly is coupled to the housing;
an LED light source module fixedly held by a heat sink fixedly held by the housing;
a power source held within the housing; and
a switch assembly;
wherein the light provided by the LED light source module may be varied between a first adjustment and a second adjustment by rotating the head assembly relative to the housing by about thirty degrees while the heat sink, the switch assembly and the power source remain stationary; and
wherein one of the first and second adjustments is a spot setting and another of the first and second adjustments is a flood setting.

Assignees

• Mag Instr Inc

Inventors

• Maglica Anthony

Classifications

• F21Y2115/10

  Light-emitting diodes [LED] · CPC title

• F21V14/045 Primary

  in portable lighting devices · CPC title

• F21L4/005

  the device being a pocket lamp (F21L4/022, F21L4/045, F21L4/085 take precedence) · CPC title

• F21V7/0075

  for portable lighting devices · CPC title

• F21V23/0407

  for flashing · CPC title