Umbrella

Details Umbrella Umbrella

2005-03-30

2008-07-22

Dunn, David R (Department: 3636)

Tent, canopy, umbrella, or cane

Umbrella

Rib and stretcher joints

C135S028000

Reexamination Certificate

active

07401617

ABSTRACT:
An umbrella has a shaft having upper and lower ends, a slide piece, and a head piece. One of the pieces has an upper part and a lower part having faces that are engaged together and that form a plurality of seats of predetermined diameter spaced angularly about the shaft. The parts are also formed at each seat with a radially outwardly open and axially extending notch of an angular width substantially smaller than the diameter of the respective seat. They are fixed together at the faces. Respective rib or strut elements each have a shaft of a width at most equal to the notch width and a head of a diameter smaller than the seat diameter. The heads are received in the seats and the shafts project outward from the respective seats through the respective notches. A standard canopy is fitted over the ribs outside the head piece.

REFERENCES:
patent: 359844 (1887-03-01), Cassidy et al.
patent: 710328 (1902-09-01), MacMillan
patent: 871611 (1907-11-01), Nelson
patent: 1266515 (1918-05-01), Monahan
patent: 1712430 (1929-05-01), Giszczynski
patent: 6076540 (2000-06-01), You
patent: 7178535 (2007-02-01), Eder
patent: 183186 (1955-02-01), None
patent: 1937891 (1970-08-01), None
patent: 203 04 453 (2003-07-01), None
patent: 2165448 (1986-04-01), None

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