80/90 CFM bath fan with telescoping side extension brackets and side by side motor and blower wheel

• US 9,816,717 B1
• Filed: 08/15/2016
• Issued: 11/14/2017
• Est. Priority Date: 09/17/2010
• Status: Active Grant

• Current Assignee: Chien Luen Industries Co., Ltd.
• Original Assignee: Chien Luen Industries Co., Ltd.
• Inventors: Lawrence, Tom
• Primary Examiner(s): Shirsat, Vivek
• Application Number:
  US15/237,475
• Time in Patent Office: 456 Days
• Field of Search: 454292, 454293, 454294, 41742315, 4152131
• CPC Class Codes: F24F 13/078 combined with lighting fixtures
• CPC Class Codes: F24F 13/20 Casings or covers
• CPC Class Codes: F24F 2007/001 with exhausting air ducts
• CPC Class Codes: F24F 2221/02 combined with lighting fixtures
• CPC Class Codes: F24F 7/007 with forced flow using ducting systems F24F7/06
• CPC Class Codes: F24F 7/065 fan combined with single duct; mounting arrangements of a fan in a duct

Abstract

Apparatus, systems and methods of 80/90 CFM ventilation exhaust fans for bathrooms with telescoping side extension brackets and side by side electric driven motor and blower wheel, and being used with or without lights. The exhaust fans can include a single main housing, that allows for a blower housing to support the motor and a blower wheel in a side by side arrangement. The exhaust fans can further include an outside wiring box that is externally located to the main housing. The wiring box can have support male plugs and female receptacles for supplying an electrical power supply to the electric motor and light. The side extension brackets can include telescoping members that allow the exhaust fans to be easily attached to structural members inside of a ceiling so that the exhaust fan has a vent cover attached to the ceiling. Inside of the exhaust fans can be light box with closed sides and bottom which prevents incoming air from passing directly onto the lights. Instead incoming air is drawn to pass around the outside of the light box so that the light box functions as a heat sink reducing the heat generated from the light.

Claims

1. An exhaust fan, comprising:

a main housing having side walls, top and open bottom, and an exhaust outlet extending from the main housing;

a blower wheel with a blower housing, the blower housing having a support base, with an outlet coupled to the main housing exhaust outlet; and

an electrical motor for rotating the blower wheel, the motor and the blower housing form an assembled blower mounted by a vertically oriented plate inside of the main housing, the vertically oriented plate consisting of a rounded top with a vertical tab extending therefrom, and a flat straight base and straight sides extending from the flat straight base, with one of the straight sides being bent into a trapezoidal section with a non-parallel angled side, relative to the vertically oriented plate, first and second side flanges extending perpendicular from the flat straight base of the vertically oriented plate, the first side flange extending perpendicular from a bottom of the bent trapezoidal section, the second side flange being oriented perpendicular to the first side flange, the flat straight base of the vertically oriented plate being attached to the closed top inside of the main housing by the first and the second side extending perpendicular flanges, the vertically oriented plate spaced from one of the side walls of the main housing, the vertically oriented plate having additional flanges extending perpendicular from a side wall of the vertically oriented plate above the base of the vertically oriented plate which attaches the vertically oriented plate to opposite facing perpendicular extending members on an interior surface of the side walls of the main housing, the additional side flanges spaced between the top and the base of the vertically oriented plate, the vertically oriented plate having an opening with equally spaced apart tabs extending into the plate opening for attaching to complementary tabs on the motor.

2. The exhaust fan of claim 1, wherein the motor is an 80 (eighty) CFM (cubic feet per minute) generating motor.

3. The exhaust fan of claim 1, wherein the motor is a 90 (ninety) CFM (cubic feet per minute) generating motor.

4. The exhaust fan of claim 1, further comprising:

a first elongated side telescoping bracket directly mounted along one side wall of the housing.

5. The exhaust fan of claim 4, further comprising:

a second elongated side telescoping bracket directly mounted along an opposite side wall of the housing, the second elongated side telescoping bracket being shorter than the first elongated side telescoping bracket.

6. The ventilating exhaust fan of claim 1, further comprising:

a removable grill with a light covering the open bottom of the main housing, the removable grill only being used to draw air into the main housing of the ventilating exhaust fan.

7. The ventilating exhaust fan of claim 6, further comprising:

a removable light shade that is separately detachable and attachable to the removable grill and light.

8. The ventilating exhaust fan of claim 7, further comprising:

a light box having closed sides and closed bottom with the light being mountable inside of the light box, wherein air being drawn into the main housing by the blower passes around sides of the light box allowing for reducing heat generated from the light.

9. The ventilating exhaust fan of claim 1, further comprising:

a wiring box attached to an exterior side of the housing, wherein the wiring box includes a male plug and a female receptacle inside of the box for supplying an external power supply to the electrical motor.

10. A ventilating exhaust fan of claim 7, further comprising:

an elongated member which adjusts height of the shade relative to the housing.

11. The ventilating exhaust fan of claim 1, wherein the blower housing with blower wheel and motor are mounted generally on a middle portion of the top inside of the main housing generally equal distant from each of the sidewalls.

12. The ventilating exhaust fan of claim 1, wherein the additional flanges include:

a 7 shaped flange; and

a Z shaped flange.