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US 4,539,238 AGranted
Tear-away window shade
OwnerSteven L. Markowitzinventor
Life of this patent
Estimating the term…
Abstract
A window shade comprises a multiplicity of elongate fabric strips connected to one another along their longitudinal edges by means of severable connecting threads. Mounting and weighting rods inserted in respective pockets at the upper and lower end of the multistrip fabric web are adjustable in length to match the width of the window shade upon a reduction thereof owing to a tearing of one or more fabric strips from the body of the window shade web. The window shade web is advantageously provided with a foam backing which contributes in part to the mechanical stability of the shade.
Claims12
A window shade comprising:
- a multiplicity of elongate fabric strips of substantially equal length disposed laterally adjacent to each other in substantially the same plane;
- and
- attachment means including a multiplicity of fibers each threadingly engaging in a knitted stitch a respective pair of adjacent fabric strips along the lengths thereof for forming a tying link between said pair of adjacent fabric strips to hold same substantially in contact with one another, said fibers being separate from the fabric of said strips, said attachment means being deformable, upon the manual application of a force exceeding a predetermined threshold, for severing said link and thereby enabling the disengagement and separation of said adjacent fabric strips from one another.
A window shade comprising:
- a multiplicity of elongate knitted fabric strips of substantially equal length disposed laterally adjacent to each other in substantially the same plane, said fabric strips having at one end substantially colinearly disposed transverse edges defining a top end of the window shade;
- attachment means, including a multiplicity of fibers each threadingly engaging in a knitted stitch a respective pair of adjacent fabric strips among said multiplicity of elongate knitted fabric strips, for holding said fabric strips in contact with each other to form a substantially planar web, each of said fibers being severable upon the application of a separating force to the respective pair of adjacent fabric strips held in contact by such fiber;
- and
- support means for mounting said web to a window frame, said support means including a rod adjustable in length and attachable to said web along said top end.
1 more element
Dependencies are inferred from the claim text.