Lighting Devices

Patent metadata

Field	Value
Publication number	US-2016153646-A1
Application number	US-201615014990-A
Country	US
Kind code	A1
Filing date	Feb 3, 2016
Priority date	Jan 13, 2013
Publication date	Jun 2, 2016
Grant date	—

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 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 2 , wherein the barrel is comprised of aluminum and the heat sink conducts heat away from the LED light source module to the barrel.

4 : The flashlight of claim 3 , wherein there is no thermal interface between the heat sink and the LED light source module except for thermal interfaces existing between the barrel and the heat sink and between the heat sink and the LED light source module.

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

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

7 : 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.

8 : 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.

9 : 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 by rotating the head assembly relative to the housing while the heat sink, the switch assembly and the power source remain stationary.

10 : The flashlight of claim 9 , wherein the housing is a barrel and the heat sink is press fit into a forward portion of the barrel.

11 : The flashlight of claim 10 , wherein the barrel is comprised of aluminum and the heat sink conducts heat away from the LED light source module to the barrel.

12 : The flashlight of claim 11 , wherein there is no thermal interface between the heat sink and the LED light source module except for thermal interfaces existing between the barrel and the heat sink and between the heat sink and the LED light source module.

13 : The flashlight of claim 12 , wherein the LED light source module is press fit into the heat sink.

14 : The flashlight of claim 10 , wherein the LED light source module is press fit into the heat sink.

15 : The flashlight of claim 10 , wherein the heat sink holds the LED light source module in a stationary position at or near a forward end of the barrel.

16 : The flashlight of claim 10 , 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.

Assignees

• Mag Instr Inc

Inventors

• Maglica Anthony

Classifications

• F21Y2115/10

  Light-emitting diodes [LED] · CPC title

• F21V7/06

  with parabolic curvature · CPC title

• F21L4/045 Primary

  Pocket lamps · CPC title

• F21V23/0428

  the switch being part of, or disposed on the lamp head portion thereof · CPC title

• F21V14/045 Primary

  in portable lighting devices · CPC title