Umbrella ink means having resilient link for accelerating foldin

Details Umbrella ink means having resilient link for accelerating foldin Umbrella ink means having resilient link for accelerating foldin

1988-05-25

1989-03-28

Bell, J. Karl

Tent, canopy, umbrella, or cane

Umbrella

Collapsible in length

A45B 1900

Patent

active

048154890

ABSTRACT:
An umbrella includes a plurality of links pivotally connected with one another to form a multiple-fold umbrella in which a resilient link is resiliently held among three links adjacent to a central handle of the umbrella for accelerating a folding operation of the umbrella links.

REFERENCES:
patent: 4007752 (1977-02-01), Weber
patent: 4030514 (1977-06-01), Schultes
patent: 4077420 (1978-03-01), Schultes et al.
patent: 4420007 (1983-12-01), Wu
patent: 4676262 (1987-06-01), Yang
patent: 4739783 (1988-04-01), Yang
patent: 4766917 (1988-08-01), Yang

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