Strutless umbrella

Details Strutless umbrella Strutless umbrella

1996-10-07

1998-01-27

Wood, Wynn E.

Tent, canopy, umbrella, or cane

Umbrella

Mechanically operated

135 98, 135 39, 135 21, 135 29, A45B 2516, E04H 1500

Patent

active

057113327

ABSTRACT:
A strutless umbrella includes a central post, either an inner plunger or tube, a canopy assembly including ribs pivotally mounted on the upper end of the central post. Links connect the ribs to the inner plunger or tube. Movement of one of the ribs moves the plunger or tube which moves the remaining ribs. A latch pin holds the umbrella in the open position.

REFERENCES:
patent: 534058 (1895-02-01), Ackerman et al.
patent: 2044805 (1936-06-01), Meyerkort
patent: 2479250 (1949-08-01), Mote
patent: 2721569 (1955-10-01), Militano
patent: 2906277 (1959-09-01), Militano
patent: 2917060 (1959-12-01), Militano
patent: 3150671 (1964-09-01), Frey
patent: 3410285 (1968-11-01), Small
patent: 3658077 (1972-04-01), Sato
patent: 3680571 (1972-08-01), Houston
patent: 3744503 (1973-07-01), Wolff et al.
patent: 4011881 (1977-03-01), Becher
patent: 4084600 (1978-04-01), de Polo
patent: 4201237 (1980-05-01), Watts et al.
patent: 4421133 (1983-12-01), Huang
patent: 4424824 (1984-01-01), Becher
patent: 4607653 (1986-08-01), Hermanson
patent: 4637415 (1987-01-01), Dalo et al.
patent: 4807655 (1989-02-01), Robertson
patent: 4813442 (1989-03-01), Haines
patent: 4823821 (1989-04-01), Day
patent: 4936332 (1990-06-01), Wu
patent: 4941494 (1990-07-01), Wu
patent: 4989625 (1991-02-01), Wu
patent: 5058613 (1991-10-01), Su et al.
patent: 5213122 (1993-05-01), Grady, II
patent: 5247955 (1993-09-01), Wu
patent: 5293890 (1994-03-01), Park et al.
patent: 5318067 (1994-06-01), Day

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