Windproof umbrella

Details Windproof umbrella Windproof umbrella

2011-07-19

2011-07-19

Dunn, David (Department: 3636)

Tent, canopy, umbrella, or cane

Umbrella

Discreet rib-stretcher connector or geat

C135S033700

Reexamination Certificate

active

07980262

ABSTRACT:
A windproof umbrella includes a center post (10) including an upper grommet (11), an intermediate fixed ring (12), and a lower sliding runner (13); ribs (20) each having one end (21) pivotably secured to the grommet (11) and the open other end (22); main joints (51) each formed at a portion of the rib (20); stretchers (30) each having one end (31) pivotably secured to the ring (12) and the other end (32) moveably secured to the main joint (51); auxiliary joints (61) each formed at a portion of the stretcher (30); and struts (40) each having one end (41) pivotably secured to the runner (13) and the other end (42) moveably secured to the auxiliary joint (61); a lower canopy (70) secured in covering relation on the ribs (20); and an upper canopy (80) having a peripheral edge positioned over a portion of the lower canopy (70).

REFERENCES:
patent: 4979534 (1990-12-01), Johnson et al.
patent: 5715853 (1998-02-01), Lin
patent: 5746235 (1998-05-01), Lin
patent: 6102058 (2000-08-01), You
patent: 6789556 (2004-09-01), You
patent: 6918399 (2005-07-01), Ko
patent: 7775226 (2010-08-01), MacDonald et al.
patent: 2002/0129843 (2002-09-01), Wang
patent: 2003/0010367 (2003-01-01), Ko

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