Tent – canopy – umbrella – or cane – Umbrella – Self-opening and closing
Patent
1976-07-30
1978-01-10
Schroeder, Werner H.
Tent, canopy, umbrella, or cane
Umbrella
Self-opening and closing
47 17, 52 66, 135 14V, A45F 116
Patent
active
040673472
ABSTRACT:
A portable solar heated shelter comprising at least one fixed roof layer and a second roof layer which can be selectively deployed to vary the thermal characteristics of the shelter. The shelter preferably comprises a rigid frame on which first and second end walls are preferably pivotally mounted. The end walls are preferably foldable between a vertically upright operative position and a generally horizontal, lowered storage position, and when deployed support the roof layers to define the enclosure. The second roof layer is adapted to be unwound from a storage spool and drawn into a take-up spool, passing over the first roof layer, by a cranking action. The second roof layer preferably comprises a first sunshade portion and a series connected heat insulative portion of opaque material which may be selectively deployed to control the thermal characteristics of the enclosure.
REFERENCES:
patent: 758033 (1904-04-01), Holmes
patent: 3598133 (1971-08-01), Abert et al.
patent: 3670747 (1972-06-01), Pohl et al.
patent: 3800814 (1974-04-01), Hibbert
patent: 3970096 (1976-07-01), Nicolai
patent: 3971395 (1976-07-01), Lipinski
Berman Conrad L.
Schroeder Werner H.
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