Length adjustable foldable door assembly

Flexible or portable closure – partition – or panel – Plural strip – slat – or panel type – Movably interconnected

Reexamination Certificate

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Details

C160S199000, C160S235000

Reexamination Certificate

active

06330902

ABSTRACT:

BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a foldable door assembly, and more particularly to a foldable door assembly having a length adjustable structure.
2. Description of the Prior Art
Typical foldable door assemblies comprise a number of door panels pivotally coupled together. One end of the door panels may be secured to one end of the door frame, and the other end of the door panels may be moved to be engaged into the other end of the door frame. U.S. Pat. No. 5,822,810 to Chen, the applicant of the present application, discloses one of the typical foldable door assemblies, in which the door panels may not be adjusted according to the different sizes of the door frames.
U.S. Pat. No. 5,918,659 to Lee discloses another typical foldable door assembly having a length adjustable structure for allowing the foldable door assembly to be attached to various kinds of door frames having different sizes or widths. However, one end of the door panels may not be secured in place and may be loosely slided relative to the door frame.
The present invention has arisen to mitigate and/or obviate the afore-described disadvantages of the conventional foldable door assemblies.
SUMMARY OF THE INVENTION
The primary objective of the present invention is to provide a foldable door assembly including a spring biasing device for resiliently and stably coupling one end of the door panels to the door frame.
In accordance with one aspect of the invention, there is provided a foldable door assembly comprising a first frame member including a chamber formed therein, a jamb member including a chamber formed therein, a first latch slidably received in the chamber of the jamb member, a spring member coupled between the first latch and the jamb member for limiting a movement of the first latch relative to the jamb member, and a foldable door device including a first end beam for engaging into the chamber of the first frame member, a second end beam coupled to the first latch, and at least one door panel coupled between the first end beam and the second end beam. The spring member may resiliently and flexibly couple the latch and thus the second end beam to the jamb member for allowing the foldable door assembly to be adjusted to various lengths and to be attached to the door frames of different sizes or widths.
The second end beam includes a channel formed therein, the first latch is engaged in the channel of the second end beam for coupling the second end beam to the jamb member, the spring member limits the movement of the first latch and the second end beam relative to the jamb member.
The door panel and the first end beam each includes a first end having a channel formed therein, the second end beam includes a first end, the door panel and the second end beam each includes a second end having a second latch provided thereon and engaged in the channels of the door panel and the first end beam respectively for coupling the door panel and the first end beam and the second end beam together.
The second end of the door panel and the second end beam each includes a flexible link provided thereon and coupled to the second latch for flexibly coupling the door panel and the first end beam and the second end beam together.
The first frame member includes a pair of inwardly extended flanges extended inward of the chamber thereof for engaging with and for retaining the first end beam of the foldable door device to the first frame member.
A second frame member is further provided and includes a first hook device provided thereon, and the jamb member includes a second hook device engaged with the first hook device for securing the jamb member to the second frame member.
Further objectives and advantages of the present invention will become apparent from a careful reading of a detailed description provided hereinbelow, with appropriate reference to accompanying drawings.


REFERENCES:
patent: 2770298 (1956-11-01), Hiatt
patent: 2978020 (1961-04-01), Paulsrude
patent: 3486549 (1969-12-01), Rosenquist
patent: 3546845 (1970-12-01), Kempel
patent: 3862523 (1975-01-01), Eaton
patent: 3941179 (1976-03-01), Root
patent: 3972365 (1976-08-01), Dixon
patent: 3994330 (1976-11-01), Laby
patent: 4027714 (1977-06-01), Dixon et al.
patent: 4189173 (1980-02-01), Rester
patent: 4332287 (1982-06-01), Stolpe
patent: 4455708 (1984-06-01), Saigne
patent: 5065808 (1991-11-01), Hopperdietzel
patent: 5148850 (1992-09-01), Urbanick
patent: 5822810 (1998-10-01), Chen
patent: 5918659 (1999-07-01), Lee

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