Flexible or portable closure – partition – or panel – Plural strip – slat – or panel type – Venetian blind type
Reexamination Certificate
2002-04-19
2003-04-22
Johnson, Blair M. (Department: 3634)
Flexible or portable closure, partition, or panel
Plural strip, slat, or panel type
Venetian blind type
C160S902000, C248S262000
Reexamination Certificate
active
06550523
ABSTRACT:
BACKGROUND OF THE INVENTION
A conventional head structure for Venetian blind includes a head rail
1
′ having a flat bottom surface
2
, two mounting members
5
′ visibly assembled to two ends of the head rail
1
′, and a slat tilting gear
4
′ generally controlled via a rigid wand
43
′, as shown in FIG.
1
. While the head rail
1
′ has a flat bottom surface
2
, slats
3
of the Venetian blind have an arched profile. When the arched slats
3
are in a fully lifted position, they are in contact with the flat bottom surface
2
of the head rail
1
′ only in an extremely small area. When the lifted slats
3
are subjected to compression toward the head rail
1
′ , they tend to deform at two longitudinal edges. The mounting members
5
′ are normally located at two outer ends of the head rail
1
′ and have an appearance quietly different from that of the head rail
1
′ to spoil an integral beauty of the Venetian blind. The wand
43
′ of the slat tilting gear
4
′ for tilting the slats
3
is an elongate member downward extended from the bottom of the head rail
1
′. It not only adversely affects the integral beauty of the Venetian blind, but also occupies additional space when the slats
3
are lifted for storing or transporting the Venetian blind. Moreover, the wand
43
′ is easily broken at collision with other things.
It is therefore desirable to develop an improved head structure for Venetian blind to eliminate the above-mentioned drawbacks.
SUMMARY OF THE INVENTION
A primary object of the present invention is to provide an improved head structure for Venetian blind, so that the slats of the Venetian blind would not deform when they are in a fully lifted position, and the whole head structure has a beautiful integral appearance.
To achieve the above and other objects, the head structure for Venetian blind according to the present invention mainly includes a head rail having a concave bottom surface, two mounting members assembled to the head rail and invisible from a front side of the head rail, and a slat tilting gear controlled via tilt cords instead of a rigid wand. The concave bottom surface of the head rail has a curvature close to that of slats of the Venetian blind, so that the slats in a fully lifted position fitly bear against the bottom of the head rail to avoid deformation. The tilt cords, the invisibly assembled mounting members, and the lifted slats fitly bearing against the head rail not only creates beautiful integral appearance for the Venetian blind, but also enables reduced volume of the Venetian blind for convenient packing, storage, and transport thereof.
REFERENCES:
patent: 2630861 (1953-03-01), Nelson
patent: 5092387 (1992-03-01), King et al.
patent: 5180130 (1993-01-01), McMichael
patent: 5353857 (1994-10-01), Anderson
patent: 6039295 (2000-03-01), De Beijer
Dennison, Schultz & Dougherty
Johnson Blair M.
LandOfFree
Head structure for Venetian blind does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Head structure for Venetian blind, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Head structure for Venetian blind will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3100457