US3987592A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tarpaulin with edge reinforcing strip
Assignee: Ewald Doerken AG
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Filing: 1974-10-30
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Granted: 1976-10-26
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Expires: 1994-10-30
Abstract
Abstract A tarpaulin composed of a sheet and edge reinforcing strips attached to the sheet along the edges thereof, only the strips being provided with perforations, at the intended locations of holding eyes, and the sheet being free of perforations so that the perforations in the strips present blind holes, whereby, for use, the sheet can be punched through only at the locations where holding eyes are required while the remaining edge portions of the sheet are left unperforated and thus unweakened.
Inventors
- 👤 Hellmut Herminghaus
- 👤 Dieter Jablonka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 03:34
CPC Classifications
B; B60; B60J; B60J11/00; B29; B29C; B29C65/00; B29C65/02; B29C65/022; B29C65/028; B29C66/00; B29C66/01; B29C66/05; B29C66/10; B29C66/11; B29C66/112; B29C66/1122; B29C66/40; B29C66/41; B29C66/43; B29C66/435; B29C66/47; B29C66/472; B29C66/4722; B29C66/70; B29C66/72; B29C66/729; B29C66/7292; B29C66/80; B29C66/83; B29C66/834; B29C66/8341; B29C66/83411; B29C66/83413; B29C2793/00; B29C2793/0045; B29C48/00; B29C48/03; B29C48/07; B29C48/08; B29C66/83415; B29L; B29L2007/00; B29L2007/005; B29L2031/00; B29L2031/709; B29L2031/7096; B29L2031/71; D; D10; D10B; D10B2505/00; D10B2505/18; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24273; Y10T428/24777
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
78 words
In a tarpaulin composed of a flexible sheet provided with flexible edge reinforcing strips fastened to the sheet along the entire periphery thereof, the improvement wherein the strips are provided with perforations along each edge of said sheet and said sheet is free of perforations so that said edge reinforcing strips form, with said sheet, blind holes in the area of the perforations, the blind holes being adapted to be punched through as required to form holding eyes.
Claim 2
Dependent Claim
78 words
In a tarpaulin composed of a flexible sheet provided with flexible edge reinforcing strips fastened to the sheet along the entire periphery thereof, the improvement wherein the strips are provided with perforations along each edge of said sheet and said sheet is free of perforations so that said edge reinforcing strips form, with said sheet, blind holes in the area of the perforations, the blind holes being adapted to be punched through as required to form holding eyes.
Claim 3
Dependent Claim
31 words
Tarpaulin as defined in claim 1 wherein the spacing of the blind holes from one another along each said strip corresponds to about five times the diameter of one blind hole.
Claim 4
Dependent Claim
21 words
Tarpaulin as defined in claim 1 wherein said edge reinforcing strips are of the same type of material as said sheet.
Claim 5
Dependent Claim
24 words
Tarpaulin as defined in claim 1 wherein said edge reinforcing strips are of a material of a different type from that of said sheet.
Claim 6
Dependent Claim
20 words
Tarpaulin as defined in claim 1 wherein said edge reinforcing strips are of a material which is reinforced by inserts.
Claim 7
Dependent Claim
19 words
Tarpaulin as defined in claim 1 wherein said edge reinforcing strips are disposed on both sides of said sheet.
Claim 8
Dependent Claim
21 words
Tarpaulin as defined in claim 1 wherein said edge reinforcing strips are permanently connected, over their entire surfaces, to said sheet.
Claim 9
Dependent Claim
45 words
A plurality of tarpaulins, each as defined in claim 1, connected together, with adjacent tarpaulins being joined by a member defining two juxtaposed, transverse, reinforcing strips, each associated with a respective tarpaulin, said member being perforated along a line defining the boundary between said tarpaulins.
References Cited (Backward Citations)
US189757A
Cited
US1769177A
Cited
US2061675A
Cited
US2116260A
Cited
US2877876A
Cited
US3332473A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-10-26 | 1980-04-26 | 1980-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-10-26 | 1984-04-26 | 1984-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-10-26 | 1988-04-26 | 1988-10-26 | $7700.00 | Window Closed / Lapsed |