Fire damper for ventilating fan

Patent metadata

Field	Value
Publication number	US-9533179-B2
Application number	US-201113809254-A
Country	US
Kind code	B2
Filing date	Jul 26, 2011
Priority date	Jul 30, 2010
Publication date	Jan 3, 2017
Grant date	Jan 3, 2017

Abstract

A fire damper for a ventilating fan includes a shutter and a frame provided with a flange. An opening is provided on the frame. The frame is further provided with a movable component for covering or uncovering the opening.

First claim

What is claimed is:

1. A fire damper and ventilating fan assembly, the ventilating fan assembly comprising a ventilating fan, a power cord, a fixture, and the fire damper comprising a shutter and a frame provided with a flange,
wherein the frame defines at least two frame openings therethrough, and the frame is further provided with a movable component that is configured to move between a first position and a second position, wherein said movable component comprises a first and second portion, said first portion defines an elongated protruded groove thereon and said second portion defines a planar edge portion;
wherein when the movable component is in the first position the power cord is inserted into a first frame opening of said at least two openings, is passed along a passageway constructed between an underside of the elongated protruded groove of the first portion of the moveable component, and then passes through a second frame opening of said at least two openings, such that the power cord passes from a fire damper upstream side to a fire damper downstream side exteriorly of the fire damper, and is capable of providing power to the fixture when the fire damper is in a dosed position, and
wherein when the movable component is in the second position, the first and second frame openings are occluded by the second planar edge portion.

2. The fire damper according to claim 1 , wherein said first frame opening is defined on an upper frame section and said second frame opening is defined on a lower frame section of the frame, respectively; and, said first and second frame openings are provided in a paired configuration.

3. The fire damper according to claim 1 , wherein said movable component has clip members provided at one end thereof and configured to be caught or engaged at one of an upper end and a lower end of said frame, and a screw hole formed at the other of the upper end and the lower end and through which the movable component is fixed to said frame by a screw.

4. The fire damper according to claim 1 , wherein said at least two frame openings are provided at the flange of said frame.

5. The fire damper according to claim 1 , wherein each of the at least two frame openings is not cut out completely, is originally in an incomplete cut-out status, and has a pinhole line configuration, and each frame opening is formed by removing material from the frame along the pinhole line configuration.

Assignees

• Long Min
• Hou Guancheng
• Panasonic Eco Sys Guangdong Co
• Panasonic Corp

Inventors

• Long Min
• Hou Guancheng

Classifications

• F24F7/007

  with forced flow (using ducting systems F24F7/06) · CPC title

• F24F11/33

  to fire, excessive heat or smoke · CPC title

• A62C2/18

  Sliding dampers · CPC title

• A62C2/12 Primary

  Hinged dampers · CPC title

• A62C2/22 Primary

  Fire-dampers with provision for the removal of an obstacle, e.g. rails, conveyors, before closing the opening · CPC title