Stable telescopic centerpost of multiple-fold umbrella

Details Stable telescopic centerpost of multiple-fold umbrella Stable telescopic centerpost of multiple-fold umbrella

1989-04-14

1989-08-22

Scherbel, David A.

Tent, canopy, umbrella, or cane

Umbrella

Collapsible in length

135 75, A45B 1900

Patent

active

048586331

ABSTRACT:
A telescopic centerpost of a multiple-fold umbrella includes an upper retainer having an upper catch protruding leftwardly for supporting a left portion of a slider of umbrella canopy and spokes and a slider straightener having a protrusion protruding rightwardly for retaining a right portion of the slider for keeping the slider stably vertically, and at least a reinforced catch having two balls respectively engageable with two sets of double holes respectively formed in an inner tube and an outer tube for firmly coupling the inner and outer tubes.

REFERENCES:
patent: 1108217 (1914-08-01), Ostman
patent: 1250292 (1917-12-01), Erickson
patent: 2068067 (1937-01-01), Okun
patent: 3705593 (1972-12-01), Weber

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