U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Hinged vent chute

Patent 6347991 Issued on February 19, 2002. Estimated Expiration Date: Icon_subject October 17, 2020. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Patent References

Ventilation and insulation baffle
Patent #: 4096790
Issued on: 06/27/1978
Inventor: Curran

Combination thermal insulation stop and ventilation baffle article
Patent #: 4184416
Issued on: 01/22/1980
Inventor: Koontz

House roof insulation vent
Patent #: 4189878
Issued on: 02/26/1980
Inventor: Fitzgerald

Vent and baffle unit Patent #: 4214510
Issued on: 07/29/1980
Inventor: Ward

Inventors

Application

No. 690421 filed on 10/17/2000

US Classes:

454/260, Through roof eaves or rafters454/250Natural ventilation including air passage through rooftop (i.e., no air pump)

Examiners

Primary: Lu, Jiping

Attorney, Agent or Firm

International Class

F24F 007/02

Abstract

A hinged vent chute, for providing ventilation to an open attic space, includes an elongated chute segment and an insulation dam segment. The elongated chute segment has one or more upwardly open channels, extending from a lower end to an upper end of the chute segment, that provide an air passage from a soffit region of a roof, over an interior surface of the roof, up into an open attic space beneath the roof. The hinged vent chute has a hinge or fold line joining the elongated chute segment to the insulation dam segment which permits the vent chute to be folded downward at the hinge to position the insulation dam segment for securement to form an insulation dam which prevents loose fill insulation in an attic from flowing down into a soffit region of a roof and blocking air flow. The insulation dam segment may also have one or more hinge or fold lines intermediate the ends of the insulation dam segment to permit the insulation dam segment to be folded intermediate its ends when positioning the insulation dam segment for securement to form the insulation dam.

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