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US3874397A Expired / Lapsed US ⏱️ 0.0 years remaining

Foldable tent

Assignee: Heinrich Zangenberg GmbH and Co
•
Filing: 1973-08-08
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Granted: 1975-04-01
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Expires: 1993-08-08
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Abstract

Abstract Tent having a folding supporting framework and a tent cloth forming a roof portion. The supporting framework has stays, together with a clamping device, the stays leading down to the base corners of the tent and being hinged to a central member which, when the tent is erected, supports the center of the roof. The stays have bottom sections which can be folded outwards into an extended position in line with respective upper stay sections. The tent may have a closable entrance.

Inventors

  • 👤 Wilhelm Oberhaus

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-31 14:32
CPC Classifications
E; E04; E04H; E04H15/00; E04H15/28

Claims Analysis

Total Claims: 7
Claim 1
Independent Claim 336 words
A tent having a folding supporting framework and a tent cloth forming a roof portion and a floor portion integral with said roof portion, the supporting framework comprising a central member and stays together with a clamping device for them, the stays leading down to the base corners of the tent and being articulated to the central member, the central member supporting the center of the roof when the tent is eRected, the stays having upper and bottom sections, the bottom sections of the stays being foldable outwards to an in-line extended position with respect to the respective upper stay sections, the extended sections of the stays giving the tent a polygonal plan form of substantially hemispherical shape, the two sections of the stays being formed of elastically flexible spring rods of substantially identical length, the bottom sections of the stays at their bottom ends projecting beyond the tent cloth at the bottom corners of the tent in both the erected and folded conditions, the roof portion of the tent cloth being attached to the central member of the supporting framework and also, at its bottom edge and at intermediate points, to the stays, braces between the slide and the upper sections of the stays, and the clamping device comprising a slide which can be vertically displaced relatively to the central member and locked in an upper clamping position in which the stays are deflected outwards by means of said braces between the slide and the upper stay sections, said floor portion is attached to said roof portion, and said floor portion is sewed to the roof portion of the tent cloth at a location spaced from the bottom edge of said roof portion, the section of the floor portion which is spaced from the bottom edge of said roof portion follows the general contour of the roof portion and extends upwardly from the ground surface when the tent is fully erected, the bottom ends of the stays passing to the outside through the tent cloth.
Claim 2
Dependent Claim 336 words
A tent having a folding supporting framework and a tent cloth forming a roof portion and a floor portion integral with said roof portion, the supporting framework comprising a central member and stays together with a clamping device for them, the stays leading down to the base corners of the tent and being articulated to the central member, the central member supporting the center of the roof when the tent is eRected, the stays having upper and bottom sections, the bottom sections of the stays being foldable outwards to an in-line extended position with respect to the respective upper stay sections, the extended sections of the stays giving the tent a polygonal plan form of substantially hemispherical shape, the two sections of the stays being formed of elastically flexible spring rods of substantially identical length, the bottom sections of the stays at their bottom ends projecting beyond the tent cloth at the bottom corners of the tent in both the erected and folded conditions, the roof portion of the tent cloth being attached to the central member of the supporting framework and also, at its bottom edge and at intermediate points, to the stays, braces between the slide and the upper sections of the stays, and the clamping device comprising a slide which can be vertically displaced relatively to the central member and locked in an upper clamping position in which the stays are deflected outwards by means of said braces between the slide and the upper stay sections, said floor portion is attached to said roof portion, and said floor portion is sewed to the roof portion of the tent cloth at a location spaced from the bottom edge of said roof portion, the section of the floor portion which is spaced from the bottom edge of said roof portion follows the general contour of the roof portion and extends upwardly from the ground surface when the tent is fully erected, the bottom ends of the stays passing to the outside through the tent cloth.
Claim 3
Dependent Claim 35 words
A tent as claimed in claim 1, in which the ends of each of the stays which are outside the tent cloth are equipped with a ring for attachment of the tent to the ground.
Claim 4
Dependent Claim 33 words
A tent as claimed in claim 1, in which the central member forms the top end of a short pole provided with a detachable extension that can be locked to said short pole.
Claim 5
Dependent Claim 22 words
A tent as claimed in claim 1, having one or more ventilation flaps provided in the roof portion of the tent cloth.
Claim 6
Dependent Claim 15 words
A tent as claimed in claim 1, comprising a closable entrance through the tent cloth.
Claim 7
Dependent Claim 17 words
A tent as claimed in claim 5, wherein the closable entrance is disposed between two successive stays.

References Cited (Backward Citations)

US1449894A Cited
US2953145A Cited
US2864389A Cited
US3738378A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1978-03-31 1978-09-30 1979-04-01 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1982-03-31 1982-09-30 1983-04-01 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1986-03-31 1986-09-30 1987-04-01 $7700.00 Window Closed / Lapsed

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