US4165779A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pleated draw drape
Assignee: Plastic Products Inc
•
Filing: 1978-06-05
•
Granted: 1979-08-28
•
Expires: 1998-06-05
Abstract
Abstract A draw drape is provided having a number of pleat assemblies located at uniformly spaced intervals within a stiffened heading border. Each pleat assembly consists of one, two or three separate loops fixed in position by cohesive bonding to a reinforced backing strip. The bonding occurs at the base of the folds bracketing said loops and at the bight of each loop in vertically elongated parallel regions extending the height of said border. A separate backing strip is utilized for each pleat assembly.
Inventors
- 👤 Lawrence O. Jacobs
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 15:54
CPC Classifications
A; A47; A47H; A47H13/00; A47H13/14
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
159 words
A draw drape comprising: (a) a compliant sheet having a face surface, rear surface and straight upper edge, (b) a stiffened heading border contiguous to said upper edge having thermoplastic characteristics, and (c) a series of straight uniform pleat assemblies located at uniformly spaced intervals within said border, each assembly comprising at least one and not more than three separate loops disposed perpendicularly to said upper edge and protruding above the face surface of said sheet, said loops being fixed in position by cohesive bonding to a flat, tear-resistant backing strip comprised of thermoplastic material, said bonding occurring in vertically elongated regions at the bases of the folds bracketing said loops and at the bight of each loop in the case of pleats having two or three loops, whereby each loop in conjunction with said backing strip defines a hollow space into which a support hook may be inserted, said assemblies being amenable to fabrication by a stamping method.
Claim 2
Dependent Claim
159 words
A draw drape comprising: (a) a compliant sheet having a face surface, rear surface and straight upper edge, (b) a stiffened heading border contiguous to said upper edge having thermoplastic characteristics, and (c) a series of straight uniform pleat assemblies located at uniformly spaced intervals within said border, each assembly comprising at least one and not more than three separate loops disposed perpendicularly to said upper edge and protruding above the face surface of said sheet, said loops being fixed in position by cohesive bonding to a flat, tear-resistant backing strip comprised of thermoplastic material, said bonding occurring in vertically elongated regions at the bases of the folds bracketing said loops and at the bight of each loop in the case of pleats having two or three loops, whereby each loop in conjunction with said backing strip defines a hollow space into which a support hook may be inserted, said assemblies being amenable to fabrication by a stamping method.
Claim 3
Dependent Claim
62 words
A draw drape in accordance with claim 1 wherein said heading border is a composite sheet structure comprised of a stiffening member sandwiched between front and rear layers of material having thermoplastic characteristics and cohesively consolidated in at least one zone horizontally coextensive with said heading, and wherein said vertically elongated regions of bonding effect further consolidation of said composite heading border.
Claim 4
Dependent Claim
17 words
A draw drape in accordance with claim 1 wherein said bights are uniform, continuous and sharply defined.
Claim 5
Dependent Claim
30 words
A draw drape in accordance with claim 1 wherein said front layer of said composite heading border is continuous with the face surface of said compliant sheet and integral therewith.
Claim 6
Dependent Claim
27 words
A draw drape in accordance with claim 1 wherein a separate backing strip is utilized for each pleat assembly, said backing strip having an essentially rectangular configuration.
Claim 7
Dependent Claim
26 words
A draw drape in accordance with claim 1 wherein said backing strip is a thin, supple sheet-like member capable of being pierced by a sharp pin.
Claim 8
Dependent Claim
29 words
A draw drape in accordance with claim 1 wherein said vertically elongated regions of bonding are continuous and coplanar, and traverse substantially the entire height of said heading border.
Claim 9
Dependent Claim
29 words
The draw drape of claim 1 wherein the height to which each loop protrudes above the face surface of said sheet is constant throughout the length of said loop.
Claim 10
Dependent Claim
44 words
A draw drape in accordance with claim 1 wherein said elongated regions of bonding are of essentially rectangular shape, having a width between about 1/16" and 3/8", a length between about 2" and 6", and a total area of at least 0.1 square inch.
Claim 11
Dependent Claim
15 words
A draw drape in accordance with claim 1 wherein said thermoplastic material is plasticized poly(vinylchloride).
Claim 12
Dependent Claim
31 words
A draw drape in accordance with claim 9 wherein the ratio of the spacing between the regions of bonding to the height of said loops is between about 0.2 and 0.8.
Claim 13
Dependent Claim
21 words
A draw drape in accordance with claim 1 wherein pilot seams are disposed in said border midway between said pleat assemblies.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-08-27 | 1983-02-26 | 1983-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-08-27 | 1987-02-26 | 1987-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-08-27 | 1991-02-26 | 1991-08-28 | $7700.00 | Window Closed / Lapsed |