Tent – canopy – umbrella – or cane – Umbrella – Self-opening and closing
Patent
1975-09-11
1977-03-15
Schroeder, Werner H.
Tent, canopy, umbrella, or cane
Umbrella
Self-opening and closing
135 3B, 135 4C, 135 15PQ, A45F 116
Patent
active
040118800
ABSTRACT:
A tent structure having a plurality of elongate tent staves pivotably joined to a common pin at one of their respective ends and supportable at their distal ends on a tent supporting surface. A tent cover is fitted over the staves and defines a tent enclosure when the staves are pivoted outwardly against the cover. A tensile strand depends from the pin and is attached to the supporting surface. A tensioning device adjusts the tensile stress in the strand.
REFERENCES:
patent: 34258 (1862-01-01), Lynch
patent: 758642 (1904-05-01), Gotsche
patent: 842672 (1907-01-01), Kirby
patent: 974491 (1910-11-01), Huebner
patent: 1730565 (1929-10-01), Flintjer
patent: 2314830 (1943-03-01), Hunter
patent: 2512099 (1950-06-01), Guenzl
patent: 3251370 (1966-05-01), Tanner
Berman Conrad L.
Schroeder Werner H.
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