Static structures (e.g. – buildings) – Framing to receive door – doorjamb – or window sash – Architrave; i.e. – finish strip on floor – ceiling – or wall...
Reexamination Certificate
1999-05-25
2001-09-25
Callo, Laura A. (Department: 3635)
Static structures (e.g., buildings)
Framing to receive door, doorjamb, or window sash
Architrave; i.e., finish strip on floor, ceiling, or wall...
C052S717010, C052S716800, C052S656400, C052S745160, C049S504000
Reexamination Certificate
active
06293060
ABSTRACT:
FIELD OF THE INVENTION
The present invention relates to a door frame for mounting a door in a doorway opening in a wall. More particularly, the present invention relates to a door frame having a securing and sealing flange fixed to and extending laterally outwardly beyond the frame to provide a space between the frame molding section and the flange for receiving exterior siding.
BACKGROUND OF THE INVENTION
Conventional building industry practice involves pre-fabricated door frame assemblies which are manufactured at a manufacturing facility, and then transported to a remote location for installation in a building. This door frame assembly includes a door frame and one or more prehung doors. For multiply door assemblies, a storm door and a main or entrance door are provided. The door frame includes a header jamb for the top of the doorway opening and latch and hinge jambs for the sides of the doorway opening in the wall.
With the increase in cost of wood, metal frames, particularly those of steel, have become viable for residential use, as well as for commercial use. Thus, the use of metal door frames is expanding.
The frame should be adaptable to a wide variety of uses. Such uses include the presence or absence of a screen or storm door, in addition to the main door. Further, exterior trim should be provided.
In forming the door frame assembly, the amount of work performed at the factory should be maximized, while the amount of work to be done at the installation site must be minimized. In this way, installation in the field can be accomplished more simply with less experienced labor and more quickly saving time and expense. Further, installation must provide an overall attractive appearance when completed with the building siding and provide a sealed structure to avoid entry of contaminants into the building structure.
SUMMARY OF THE INVENTION
Accordingly, an object of the present invention is to provide a door frame which can be easily and economically manufactured and which can be used in a simple installation method.
Another object of the present invention is to provide a door frame which provides a sealed entry way.
A further object of the present invention is to provide a door frame which is adaptable to receive a screen or storm door and can be used with or without exterior trim.
Yet another object of the invention is to provide a door frame or door frame assembly which is rugged and sturdy.
The foregoing objects are basically obtained by a door frame comprising a header jamb, a hinge jamb, a latch jamb, and a jamb securing and sealing flange. The hinge and latch jambs depend from opposite ends of the header jamb. Each of the jambs has an inside section for extending into a doorway opening in a wall, and has a molding section extending laterally outwardly from the respective inside section for overlying a surface of the wall adjacent the doorway opening. Each molding section includes an inner end extending from the inside section, and outer face extending generally perpendicularly from the inner end, and an outer free end extending generally perpendicularly from the outer face. The flange has first and second end sections joined by a center section. The first end section is substantially parallel to and fixed to an inner surface of the outer face of the one the jambs. The second end section extends substantially parallel to the first end section and laterally outwardly beyond the respective outer free end.
The foregoing objects are also obtained by a method of mounting a door frame in a doorway opening in a wall having inside and outside faces, comprising the steps of locating a door frame adjacent to doorway opening, and then positioning the door frame in the doorway opening and positioning jamb securing and sealing flanges.
The door frame has a header jamb, a hinge jamb and a latch jamb, with the hinge and latch jambs extending from opposite ends the header jamb. In positioning the door frame in the doorway opening, the header jamb is located along a top of the doorway opening, while the hinge and latch jambs are located along opposite sides of the doorway opening. Inside sections of each hinge jamb are in the doorway opening, while molding sections of each end jamb extend laterally outwardly from the inside sections and overly an outside face of the wall adjacent the doorway opening. Each flange has first and second end sections joined by a center section with the first end sections being fixed to inner surfaces of the outer faces of the jambs. The second end sections extend laterally outwardly beyond outer free ends of the molding sections and abut the outside face of the wall adjacent the doorway opening. The flanges are then fixed to the outside face of the wall.
By forming the door frame and performing the method in this manner, the door frame can be easily manufactured and have a door mounted therein at the factory. Additionally, the door frame assembly can be easily installed within a doorway opening in an wall. The securing and sealing flange positively and correctly locates the frame within the doorway opening, provides a mechanism for securely attaching the frame to the wall and provides a seal, particularly against the intrusion of rain into the wall at the doorway opening.
Other objects, advantages, and salient features of the present invention will become apparent from the following detailed description, which, taken in conjunction with the annexed drawings, disclose a preferred embodiment of the present invention.
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Haney Wendell
McKann H. Smith
Callo Laura A.
Roylance Abrams Berdo & Goodman L.L.P.
Therma-Tru Technologies Incorporated
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