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US4091857A Expired / Lapsed US ⏱️ 0.0 years remaining

Cable-suspended draw-curtain system

Assignee: Plastic Products Inc
•
Filing: 1977-07-05
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Granted: 1978-05-30
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Expires: 1997-07-05
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Abstract

Abstract A system is provided whereby a flexible curtain is hunt from a horizontal span of an overhead suspended cable, and can be drawn off said cable onto a rigid track for storage. The track is positioned contiguous to an end of said span and above said cable. Transfer of the curtain from the cable to the track is facilitated by use of an inclined member which smoothly engages both said cable and said track, causing said transfer to occur within said horizontal span. Traversal of the curtain with respect to the cable is achieved by means of carriers equipped with wheels which ride atop said cable.

Inventors

  • 👤 Lawrence O'Quinn Jacobs

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-02 16:58
CPC Classifications
A; A47; A47H; A47H5/00; A47H5/02; A47H5/032; A47H1/00; A47H1/18

Claims Analysis

Total Claims: 7
Claim 1
Independent Claim 223 words
A horizontally traversable curtain system comprising a tensioned cable removeably anchored at one end and having tensioning means at its opposite end, and arranged so that a portion thereof is disposed as a horizontally oriented span between said anchored end and a guide means which redirects said cable to said tensioning means, an aligned plurality of carriers engaging the upper portion of said cable for traversing movement with respect thereto, a flexible curtain having a straight upper edge and pendantly supported by said edge held at spaced points by attachment to portions of said carriers disposed below said cable, an inclined transfer means positioned above said cable at that extreme of said horizontal span adjacent said guide means, the lower terminus of said transfer means being directed toward said anchored end and adapted to transversely straddle said cable, the upper terminus of said transfer means engaging with the forward end of a rigid storage track which is initially coextensive with said cable, the disposition and interaction of said transfer means and said storage track being such as to provide a transition region wherein said carriers disengage from said cable, said transition region being located above said horizontal span and between the lower terminus of said transfer means and said guide means whereby said carriers are transferred from said cable onto said storage track.
Claim 2
Dependent Claim 223 words
A horizontally traversable curtain system comprising a tensioned cable removeably anchored at one end and having tensioning means at its opposite end, and arranged so that a portion thereof is disposed as a horizontally oriented span between said anchored end and a guide means which redirects said cable to said tensioning means, an aligned plurality of carriers engaging the upper portion of said cable for traversing movement with respect thereto, a flexible curtain having a straight upper edge and pendantly supported by said edge held at spaced points by attachment to portions of said carriers disposed below said cable, an inclined transfer means positioned above said cable at that extreme of said horizontal span adjacent said guide means, the lower terminus of said transfer means being directed toward said anchored end and adapted to transversely straddle said cable, the upper terminus of said transfer means engaging with the forward end of a rigid storage track which is initially coextensive with said cable, the disposition and interaction of said transfer means and said storage track being such as to provide a transition region wherein said carriers disengage from said cable, said transition region being located above said horizontal span and between the lower terminus of said transfer means and said guide means whereby said carriers are transferred from said cable onto said storage track.
Claim 3
Dependent Claim 79 words
The curtain system of claim 1 wherein said carriers are comprised of an upper yoke portion which houses a pulley wheel adapted for rotation in a vertical plane, a leg portion centered under said wheel and having means to engage an S-hook, and an opening provided between the bottom of said wheel and the top of said leg portion adapted to permit lateral displacement of a cable in a direction perpendicular to the plane of rotation of said wheel.
Claim 4
Dependent Claim 22 words
The curtain system of claim 1 wherein said carriers support adjustable length means for attachment to the upper edge of said curtain.
Claim 5
Dependent Claim 34 words
The curtain system of claim 3 wherein the horizontally oriented span of said cable has the configuration of a catenary curve, and the upper edge of said curtain is a substantially straight horizontal line.
Claim 6
Dependent Claim 39 words
The curtain system of claim 1 wherein the lower terminus of said transfer means is provided with a bifurcated downwardly opening U-shaped portion which straddles said cable, and retaining means serving to confine said cable within said bifurcated portion.
Claim 7
Dependent Claim 29 words
The curtain system of claim 1 wherein said curtain may be drawn onto the storage track which is substantially horizontally disposed to a position completely removed from said cable.

References Cited (Backward Citations)

DE22091C Cited
US1521987A Cited
BE678117A Cited
US3481073A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1981-05-29 1981-11-28 1982-05-30 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1985-05-29 1985-11-28 1986-05-30 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1989-05-29 1989-11-28 1990-05-30 $7700.00 Window Closed / Lapsed

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