Portable blower fan assembly

Patent metadata

Field	Value
Publication number	US-12546329-B2
Application number	US-202418933091-A
Country	US
Kind code	B2
Filing date	Oct 31, 2024
Priority date	Oct 2, 2020
Publication date	Feb 10, 2026
Grant date	Feb 10, 2026

Abstract

A portable blower fan assembly that includes a housing that forms a pair of air tunnels. The pair of air tunnels are configured to provide a first airflow path across a surface in a downward direction. The portable blower fan assembly further includes a pair of fan assemblies. Each fan assembly is positioned within one of the air tunnels with a downward angle. The portable blower fan assembly further includes a power supply that is configured to provide electrical power to the first motor and the second motor.

First claim

The invention claimed is:

1 . A portable blower fan device, comprising:
a housing comprising:
a first air tunnel comprising a first intake portion and a first exhaust portion, wherein the housing comprises a first pair of focus corners, wherein each focus corner in the first pair of focus corners is a portion of the housing comprising a respective curved or sloped surface configured to reduce a pressure at a base of the housing, the first pair of focus corners configured to provide a first airflow path that exits the housing in a downward direction from the first intake portion to the first exhaust portion of the first air tunnel;
a second air tunnel comprising a second intake portion and a second exhaust portion, wherein the housing comprises a second pair of focus corners, wherein each focus corner in the second pair of focus corners is a portion of the housing comprising a respective curved or sloped surface configured to reduce the pressure at the base of the housing, the second pair of focus corners configured to provide a second airflow path that exits the housing in the downward direction from the second intake portion to the second exhaust portion of the second air tunnel; and
a plurality of channels, wherein each one of the plurality of channels comprises an opening that extends from an intake side of the portable blower fan device to an exhaust side of the portable blower fan device, wherein an interface is associated with the opening of each one of the plurality of channels and configured to mate with a secondary interface of a plurality of channels of a second portable blower fan device in a stacked configuration;
wherein in the stacked configuration, the exhaust side of the portable blower fan device faces the intake side of the second portable blower fan device;
a first fan assembly disposed between the first intake portion and the first exhaust portion of the first air tunnel, wherein the first fan assembly comprises a first fan blade and a first motor; and a second fan assembly disposed between the second intake portion and the second exhaust portion of the second air tunnel, wherein the second fan assembly comprises a second fan blade and a second motor.

2 . The portable blower fan device of claim 1 , further comprising:
an upper housing cover coupled to an upper portion of the housing; and a lower housing cover coupled to a lower portion of the housing.

3 . The portable blower fan device of claim 1 , further comprising a plurality of positioning legs, wherein:
each positioning leg is at least partially disposed within one of the plurality of channels; and each positioning leg is configurable to extend at least partially outside of the respective channel from among the plurality of channels.

4 . The portable blower fan device of claim 3 , wherein each positioning leg of the plurality of positioning legs is configured to be removable from the respective channel from among the plurality of channels.

5 . The portable blower fan device of claim 1 , further comprising a plurality of vibration dampening feet disposed on at least a portion of the plurality of channels.

6 . The portable blower fan device of claim 1 , further comprising a first curved stator vane disposed at the first exhaust portion of the first air tunnel, wherein the first curved stator vane is configured to apply a rotation to the first airflow path.

7 . The portable blower fan device of claim 6 , further comprising a second curved stator vane disposed at the second exhaust portion of the second air tunnel, wherein the second curved stator vane is configured to apply a rotation to the second airflow path.

8 . The portable blower fan device of claim 1 , further comprising:
an intake grill configured to cover the first intake portion of the first air tunnel and the second intake portion of the second air tunnel; and an exhaust grill configured to cover the first exhaust portion of the first air tunnel and the second exhaust portion of the second air tunnel.

9 . The portable blower fan device of claim 8 , further comprising:
a cable management system integrated with the intake grill, wherein the cable management system is configured to secure a power cord for a power supply.

10 . The portable blower fan device of claim 9 , wherein the cable management system comprises cable supports and a cable cleat, wherein the cable supports are configured to receive the power cord, and wherein the cable cleat is configured to secure an end of the power cord.

11 . A surface drying method, comprising:
positioning a portable blower fan assembly at a worksite, wherein the portable blower fan assembly is configured to provide airflow toward a wet surface, wherein the portable blower fan assembly comprises:
a housing comprising:
a first air tunnel comprising a first intake portion and a first exhaust portion, wherein the housing comprises a first pair of focus corners, wherein each focus corner in the first pair of focus corners is a portion of the housing comprising a respective curved or sloped surface configured to reduce a pressure at a base of the housing, the first pair of focus corners configured to provide a first airflow path that exits the housing in a downward direction from the first intake portion to the first exhaust portion of the first air tunnel;
a second air tunnel comprising a second intake portion and a second exhaust portion, wherein the housing comprises a second pair of focus corners, wherein each focus corner in the second pair of focus corners is a portion of the housing comprising a respective curved or sloped surface configured to reduce the pressure at the base of the housing, the second pair of focus corners configured to provide a second airflow path that exits the housing in the downward direction from the second intake portion to the second exhaust portion of the second air tunnel; and
a plurality of channels, wherein each one of the plurality of channels comprises an opening that extends from an intake side of the housing to an exhaust side of the housing, wherein an interface is associated with the opening of each one of the plurality of channels and configured to mate with a secondary interface of a plurality of channels of a second portable blower fan device in a stacked configuration,
wherein in the stacked configuration, the exhaust side of the housing faces the intake side of the second portable blower fan device;

a first fan assembly disposed between the first intake portion and the first exhaust portion of the first air tunnel, wherein the first fan assembly comprises a first fan blade and a first motor; and
a second fan assembly disposed between the second intake portion and the second exhaust portion of the second air tunnel, wherein the second fan assembly comprises a second fan blade and a second motor;
activating the portable blower fan assembly for a period of time; and deactivating the portable blower fan assembly after the period of time has elapsed.

12 . The method of claim 11 , wherein positioning the portable blower fan assembly at the worksite comprises positioning the portable blower fan assembly to provide an airflow path that is substantially parallel with a floor of the worksite.

13 . The method of claim 11 , wherein positioning the portable blower fan assembly at the worksite comprises positioning the portable blower fan assembly to provide an airflow path that is substantially perpendicular to a floor of the worksite.

14 . The method of claim 11 , wherein the portable blower fan assembly further comprises:
an upper housing cover coupled to an upper portion of the housi

Assignees

• Therma Stor Llc

Inventors

• Staszak Jeffrey R
• Askling Kevin Lawrence
• Demonte Todd R
• Brunner Todd
• Poster Matthew J
• Mobley Jenee Laplace
• Treleven David
• Wang Xueqiao
• Carlson Laurence A

Classifications

• F04D19/002

  Axial flow fans · CPC title

• F05D2240/14

  Casings or housings protecting or supporting assemblies within · CPC title

• F04D25/06

  the pump being electrically driven (F04D25/08 takes precedence) · CPC title

• F04D25/0606

  the electric motor being specially adapted for integration in the pump · CPC title

• F04D25/166 Primary

  using fans · CPC title