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Patent Searching and Data


Title:
PULL DOWN, PUSH UP, SHADE ASSEMBLY
Document Type and Number:
WIPO Patent Application WO2005010307
Kind Code:
B1
Abstract:
A pleated shade assembly (10) capable of height adjustment without use of pull cords, comprising an upper elongated support(11) ; a lower elongated member(13) that is manually adjustable up and down; primary lines (20,21) extending through shade pleats (16) to suspend the bottom elongated member (13); primary rotors (40) at the top elongated support(11) to entrain the primary lines(20,21); at least one secondary line (24) having operative connection to the primary lines(20,21); and apparatus acting on the secondary line or lines (24) for counterbalancing suspension force exerted on the primary lines (20,21) at different shade height adjusted levels including dual rotary members(80,81) exerting tensioning force on said secondary line or lines(24), and including a spring(83) coupled to the dual rotary members(80,81) exerting force tending to entrain the secondary line or lines(24) about the dual rotary members(80,81), for storage on at least one of the members.

Inventors:
CHENG LI-MING
WU LAWRENCE S
Application Number:
PCT/US2004/023450
Publication Date:
December 22, 2005
Filing Date:
July 21, 2004
Export Citation:
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Assignee:
ZIPSHADE IND B V I CORP (US)
International Classes:
A47H5/00; E06B9/262; E06B9/322; E06B9/62; E06B; (IPC1-7): A47H5/00
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