Tent – canopy – umbrella – or cane – Portable shelter – Framework
Reexamination Certificate
1998-12-04
2001-04-03
Friedman, Carl D. (Department: 3635)
Tent, canopy, umbrella, or cane
Portable shelter
Framework
C135S151000, C135S153000, C135S144000
Reexamination Certificate
active
06209558
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to the construction of tent frames, and more particularly to the construction of a tent with its covering material fixed to the frame to facilitate quick and easy erection of the tent.
It is a general disadvantage of known tents that they are generally complex and therefore difficult and time consuming to erect. Also this adds to the manufacturing costs.
2. Description of the Related Art
Many attempts have been made to provide a tent which is both easily erected and of simple construction. The following is a list of such attempts.
U.S. Pat. No. 2,960,993 discloses a tent having U-shaped frame members, which are of a telescoping construction, to assist in the folding of the frame, with the cover sheet fixed to the frame. The telescoping nature of the frame members makes the tent construction generally complex, and the erection is not straight forward and is generally time consuming.
U.S. Pat. No. 3,405,721, discloses a tent having U-shaped frame members, but the cover sheet and ground sheet are affixed to the frame after the frame has been erected. Thus the erection of the tent is not straight forward and is generally time consuming.
U.S. Pat. No. 3,865,123 discloses a tent which has a frame of a generally U-shaped construction, but has a zipper fastener on the ground sheet to facilitate folding of the frame. Again this adds to the cost and complexity of the tent.
U.S. Pat. No. 4,748,995, by Guiseppe Viglione, overcomes most of the disadvantages of the prior art. However the present invention provides an improvement of this U.S. patent in that it provides a tent of the same folded size as an equivalent tent made in accordance with U.S. Pat. No. 4,748,995, but which folds out to a larger size.
SUMMARY OF THE INVENTION
In one broad form the invention comprises a foldable tent comprising:
a frame;
and a cover and ground sheet fixed to the frame so as to provide an enclosed living area when said tent is erected,
said frame comprising a plurality of frame members, each of generally U-shaped configuration, with an elongated base having two arms extending therefrom, with the arms cooperating to form two frame sides,
a pivot assembly for each frame side to which the free ends of the arms of the respective side frames are attached so that the arms of each frame side pivot about a first folding axis on said respective pivot assembly, whereby said frame members are pivotal from a first folded position, wherein said frame members are in a an abutted relationship, to an erected position in which the frame members are angularly spaced about said first folding axes,
brace means extending between said frame members to support the frame members in the erected position,
an end member located at each end of the base and pivotally connected thereto, wherein the respective arms are rigidly connected to the extremity of the respective end member, thereby enabling pivoting of the end member and attached arm, about a second folding axis extending generally within the plane of the respective base and normal to the direction of extension of the base member and the arm, whereby in the erected position the arms project away from the base, with the second axes of the arms of a side being generally coterminous when the tent is folded, the end members of the first side being longer than the end members of the second side so that in the folded position the arms of the second side lies between the bases and the arms the first side.
REFERENCES:
patent: 1434841 (1922-11-01), Pittoni
patent: 2853088 (1958-09-01), Lamborn
patent: 2960993 (1960-11-01), Holmstrom
patent: 3171417 (1965-03-01), Stokes
patent: 3405721 (1968-10-01), Crosler
patent: 3563257 (1971-02-01), Cummins
patent: 3865123 (1975-02-01), Bracken
patent: 4612948 (1986-09-01), Simpson
patent: 4748995 (1988-06-01), Viglione
patent: 3855678 (1980-02-01), None
patent: 0364646 (1990-04-01), None
Friedman Carl D.
Norris McLaughlin & Marcus P.A.
Yip Winnie
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