Supports – Brackets – Of sheet material
Reexamination Certificate
1999-10-12
2001-03-20
Ramirez, Ramon O. (Department: 3632)
Supports
Brackets
Of sheet material
C248S317000
Reexamination Certificate
active
06202969
ABSTRACT:
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT
Not applicable.
REFERENCE TO A MICROFICHE APPENDIX, IF ANY
Not applicable.
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a device for hanging an air handling duct, and more particularly, to a duct hanging bracket device that easily fastens to both the duct and support structure.
2. Background Information
Air handling ducts are commonly made from sheet metal and are used to transfer air to and from heating and cooling devices. The air handling ducts, commonly called heating, ventilation and air conditioning (HVAC) ducts, are generally positioned along the underside of floors or ceilings in residential and commercial structures. This position allows for enclosing the ducts for a more pleasing appearance. The ducts are hung from the overhead support structure, such as ceiling or floor joists, using some type of hanger device. Often the installer merely uses pieces of sheet metal to hang the duct from the joists. The fashioning of these hanging strips can be quite time consuming. Consequently, there is a need for a preformed duct hanging member that is easy to install and provides secure fastening of the duct work to the overhead support structure.
Some examples of inventions for hanging duct work have been granted patents. Hoffman, in U.S. Pat. No. 2,889,145, describes an adjustable hanger apparatus for supporting hot air ducts. Reuter, in U.S. Pat. No. 3,017,174, discloses an air duct jack used for installing duct work. Bogret, in U.S. Pat. No. 3,263,388, and Liberman in U.S. Pat. No. 3,734,436, disclose hangers for installing ceiling tile grid work. Herb, in U.S. Pat. No. 3,863,879, discloses a hanger device for mounting a ceiling air terminal A variety of hangers and supports for duct work and piping are shown in U.S. Pat. No. 3,960,350 by Tardoskegyi, in U.S. Pat. No. 4,077,592 by Forbes and in U.S. Pat. No. 5,350,141 by Perrault et al. In U.S. Pat. No. 4,787,592 Aoshika describes a device for hanging duct work or piping, including an anchor embedded in the ceiling of a building. None of these patents disclose or suggest the duct hanging bracket of the present invention.
SUMMARY OF THE INVENTION
The invention is a duct hanging bracket member for supporting a duct member. The bracket member comprises a generally planar elongated linear segment with first and second ends, having a first leg section positioned at the linear segment first end and disposed essentially perpendicular thereto, with an aperture centrally position there through. A second leg section is positioned at the linear segment second end and disposed essentially perpendicular thereto and in opposition to the first leg section. The second leg section has an aperture centrally positioned there through, as well. A stop means is secured to the linear segment first end and disposed essentially perpendicular thereto, and in opposition to the first leg section. The stop means is oriented parallel to the second leg section and in spaced apart relation therefrom. The stop means and the second leg section are spaced to accept a duct member there between. The bracket member is secured to a support surface with a fastener positioned in the first leg section aperture, and a duct member positioned adjacent the elongated linear section is supported and secured by the stop means and the second leg section with a fastener positioned in the second leg section aperture. Additional apertures in the elongated linear segment are provided for additional fasteners to secure the duct to the bracket member.
REFERENCES:
patent: D. 405348 (1999-02-01), Orr
patent: 1865134 (1932-06-01), Plimpton
patent: 2889145 (1959-06-01), Hoffman
patent: 3017174 (1962-01-01), Reuter
patent: 3263388 (1966-08-01), Bogert
patent: 3734436 (1973-05-01), Liberman
patent: 3837609 (1974-09-01), Weiss et al.
patent: 3863879 (1975-02-01), Herb
patent: 3960350 (1976-06-01), Tardoskegyi
patent: 4077592 (1978-03-01), Forbes
patent: 4787592 (1988-11-01), Aoshika
patent: 5307860 (1994-05-01), Wilkinson et al.
patent: 5350141 (1994-09-01), Perrault et al.
patent: 5947431 (1999-09-01), Kiggins
Ramirez Ramon O.
Randall Tipton L.
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