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US 6,209,610 B1Granted
Retractable screen system and improvements therefor
Assignee420820 Ontario Limited
InventorsJohn Robert Davies, Sean Davies, Sinnathamby Kupenthirarajan
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Assignee420820 Ontario Limited
InventorsJohn Robert Davies, Sean Davies, Sinnathamby Kupenthirarajan
Estimating the term…
A continuous roll of screen which may be payed out from said roll by an installer or manufacturer to a required predetermined window size, or alternatively patio door size, said screen comprising a free end which allows the installer to pay the screen off of the roll upon which the screen is accumulated course upon course, one end of said screen being disposed at the end of the courses accumulated on the roll from which the screening is payed off and the other end being a free end, said screen having side edges and preferably being manufactured from preferably vinyl-coated fiberglass, the edges of said screen having affixed thereto a generally preferably T-shaped key manufactured from a flexible material, for example polyvinyl chloride, which is affixed preferably by radio frequency welding (or RF welding) with the edges and preferably each of the edges, and in one embodiment at least one edge of said screen, wherein the vinyl coating provided on the screen melds with the polyvinyl chloride key to form a resilient anchor for the screen device within any screen roller assembly.
A continuous roll of screen, said screen comprising a free end which allows an installer to pay the screen off of the roll upon which the screen is accumulated, the other end of said screen is disposed at the end of the layers accumulated on the roll from which the screen is payed off opposite the free end, said screen having side edges and being manufactured from vinyl-coated fiberglass having affixed thereto a key manufactured from a flexible material, which is affixed with at least one of the edges of the screen, wherein the vinyl coating provided on the screen melds with the flexible material of the key when affixed to form a resilient anchor for the screen within any screen roller assembly, wherein the key located proximate the side edges of the screen has two legs which capture the screen therebetween prior to being affixed thereto, and includes an extension portion between a head of the key and the two legs capturing the screen, said extension portion not being affixed to said screen and providing a flexible portion which permits movement of the screen in both, a direction in the plane of the screen and in a direction away from the plane of the screen, said flexible portion being designed to stretch a predetermined amount and thereby minimize tearing of the screen when subjected to a tensioning load.
A roll of continuous screening is provided comprising a “T” shaped edge formed from tough flexible material fused to the screen material along the edges of the screen to which a handle and drum are to be fixed, said “T” edge being provided proximate both edges of said continuous roll of screening wherein the “T” shaped edges have two legs which captures the screen therebetween, and includes an extension portion between a head of the “T” shaped edges and the two legs capturing the screen, said extension portion providing a flexible portion which permits movement of the screen in both. a direction in the plane of the screen and in a direction away from the plane of the screen, said flexible portion being designed to stretch a predetermined amount and thereby minimize tearing of the screen when subjected to a tensioning load.
A section of screen comprising side edges and being manufactured from vinyl-coated fiberglass, at least one of the edges of said screen having affixed thereto a key manufactured from a flexible material, which is affixed with said at least one of the edges of the screen, wherein the vinyl coating provided on the screen is melded with the flexible material of the key to form a resilient anchor for the screen device within any screen roller assembly, wherein the key has two legs which captures the screen therebetween, and includes an extension portion between a head of the key and the two portions capturing the screen, said extension portion providing a flexible portion which permits movement of the screen in both, a direction in the plane of the screen and in a direction away from the plane of the screen, said flexible portion being designed to stretch a predetermined amount and thereby minimize tearing of the screen when subjected to a tensioning load.
Dependencies are inferred from the claim text.