Rotating canopy umbrella

Details Rotating canopy umbrella Rotating canopy umbrella

1990-07-19

1991-06-04

Scherbel, David A.

Tent, canopy, umbrella, or cane

Umbrella

135 28, A45B 1100

Patent

active

050205579

ABSTRACT:
A rotating canopy umbrella includes a canopy assembly that is free to rotate about the axis of a fixed center post. Also included in the design of the umbrella are disks of bearing material used to reduce surface friction during rotation.

REFERENCES:
patent: 2241389 (1941-05-01), Berman
patent: 2465140 (1949-03-01), Vila
patent: 2759486 (1956-08-01), Pesaturo
patent: 3177883 (1965-04-01), Militano
patent: 3784250 (1974-01-01), Beeman
patent: 4312371 (1982-01-01), Koon
patent: 4319600 (1982-03-01), Roche
patent: 4505285 (1985-03-01), French
patent: 4567907 (1986-02-01), Dubinsky
patent: 4622987 (1986-11-01), Redl et al.

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