Safety helmet fan system

Patent metadata

Field	Value
Publication number	US-11717047-B2
Application number	US-202117565113-A
Country	US
Kind code	B2
Filing date	Dec 29, 2021
Priority date	Apr 16, 2019
Publication date	Aug 8, 2023
Grant date	Aug 8, 2023

Abstract

A safety helmet fan system includes a fan housing carrying a first fan on a first side of the fan housing and a second fan on a second side of the fan housing and configured to be mounted, by a mount connector located between the first side and the second side, on an exterior of a safety helmet shell above a brim of the safety helmet shell, and an elongate cooling air duct connected to the fan housing to direct cooling air flow from the fan housing around the brim and into an interior of the safety helmet shell.

First claim

What is claimed is:

1. A safety helmet fan system comprising:
a first fan;
a second fan;
a fan housing, carrying the first fan on a first side of the fan housing and the second fan on a second side of the fan housing, configured to be mounted, by a mount connector located between the first side and the second side, on an exterior of a safety helmet shell above a brim of the safety helmet shell; and
an elongate cooling air duct connected to the fan housing and configured to direct cooling air flow from the fan housing around the brim and into an interior of the safety helmet shell.

2. The safety helmet fan system of claim 1 wherein the cooling air duct has a releasable connector configured to releasably connect the cooling air duct to the brim of the safety helmet shell.

3. The safety helmet fan system of claim 2 wherein the releasable connector is a snap fit connector.

4. The safety helmet fan system of claim 2 wherein the cooling air duct has a multi-piece construction with one of the pieces being a length of flexible duct and another of the pieces being a rigid length of duct defining a cooling air outlet to direct cooling air from the cooling air duct to an interior of a safety helmet shell.

5. The safety helmet fan system of claim 4 wherein the releasable connector is a snap fit connector.

6. The safety helmet fan system of claim 4 wherein the releasable connector is carried on the rigid length of duct.

7. The safety helmet fan system of claim 1 wherein the interior of the safety helmet shell is configured to surround a crown of a user's head.

8. The safety helmet fan system of claim 1 , wherein the elongate cooling air duct is further configured to direct the cooling air flow from the fan housing from the first fan, the safety fan system further comprising another elongate cooling air duct configured to direct the cooling air flow from the fan housing from the second fan.

9. The safety helmet fan system of claim 1 , wherein the cooling air duct has a flexible construction that allows the cooling air duct to be selectively reshaped.

Assignees

• Klein Tools Inc

Inventors

• Wong Kingston T

Classifications

• A42B3/286 Primary

  with forced flow, e.g. by a fan · CPC title

• A42B1/008

  with means for heating or cooling (ventilating arrangements for head coverings A42C5/04) · CPC title

• A42B3/0406

  Accessories for helmets · CPC title

• A42B3/28

  Ventilating arrangements (A42B3/24 takes precedence) · CPC title

• A42B3/281

  Air ducting systems · CPC title