Tent – canopy – umbrella – or cane – Umbrella – Having quick assembly feature
Patent
1978-10-24
1980-01-08
Machado, Reinaldo P.
Tent, canopy, umbrella, or cane
Umbrella
Having quick assembly feature
135 20R, A45B 1900, A45B 1300
Patent
active
041823524
ABSTRACT:
An umbrella of paperboard or like material comprising a plurality of radially inwardly disposed panels; a plurality of radially outwardly disposed panels; and first and second operating units; the radially inwardly disposed panels each being generally in the form of isosceles triangles in side-by-side relationship with bases forming a theoretical circumscribing circle and opposite vertices at the center of such circle, the inwardly disposed panels including first and second main panels situated in diametrically opposed positions, a first series and a second series of secondary panels extending from opposite sides of the first main panel to the second main panel, the first and second main panels being foldably connected to adjacent secondary panels on opposite sides thereof, the secondary panels each being bisected into substantially right triangular sections by a hinge extending from the vertex at the center of the center of the theoretical circle to the base opposite therefrom, each secondary panel being foldable along the respective hinge thereof whereby the substantially right triangular sections may be folded together to close the umbrella, each secondary panel further being foldably connected to at least one other secondary panel along a further fold line; a plurality of radially outwardly disposed panels in generally trapezoidal form, in side-by-side relationship and having radially inwardly disposed minor bases and radially outwardly disposed major bases, one generally trapezoidal panel being a first main trapezoidal panel, another generally trapezoidal panel being a second main trapezoidal panel situated in a position diametrically opposed to the first main trapezoidal panel, a first series and a second series of secondary trapezoidal panels extending from opposite sides of the first main trapezoidal panel to the second main trapezoidal panel.
REFERENCES:
patent: 1464830 (1923-08-01), Reid
patent: 1752820 (1930-04-01), Timblin
patent: 1752821 (1930-04-01), Timblin
patent: 1924427 (1933-08-01), Williams
patent: 3205904 (1965-09-01), Kreachbaum
Flocks Karl W.
Machado Reinaldo P.
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