US3928897A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for fastening wall covering fabrics
Assignee: Individual
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Filing: 1974-08-13
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Granted: 1975-12-30
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Expires: 1994-08-13
Abstract
Abstract The invention pertains to a device for fixing and stretching wall fabrics, characterized by the fact that it consists of combining at least one section consisting of a sole-piece in the form of a flat strip the two lengthwise edges of which are curved towards each other in such a way as to form two hooking grooves, with a further section having a cross-section in the shape of a wide open V the two lengthwise edges of which are also curved towards each other in such a way as to form two hooking elements and, at the top of the V, a hollow rib of which the entry on the concave side of the section is narrower than the width at the bottom of the hollow, the two sections being made of a deformable elastic matter.
Inventors
- 👤 Gerard J Tombu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 03:02
CPC Classifications
B; B44; B44C; B44C7/00; B44C7/02; B44C7/022; Y; Y10; Y10T; Y10T24/00; Y10T24/44; Y10T24/44034; Y10T24/44043; Y10T24/4406
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
225 words
A device for fixing and stretching wall fabrics, comprising: a sole piece in the form of a flat strip adapted to be secured to a wall, the side edges of said flat strip being curved toward each other forming at each side of said flat strip a hooking groove, one of the hooking grooves having a larger curve radius than the other of the hooking grooves; and a shaped section comprising a hollow rib portion having a relatively narrow entry opening, a wing portion extending outwardly from each side of the entry opening of said hollow rib portion, the lengthwise edges of the wing portions being curved toward each other forming at each side of the shaped section a hooking element, the curve radius of one of the hook elements corresponding to that of said one hooking groove and the curve radius of the other hooking groove corresponding to that of the other said hooking groove, the shaped section being dimensioned to be inserted in the sole piece with the hooking elements of the shaped section disposed within the corresponding hooking grooves of the sole piece for securing fabric between said sole piece and said shaped section, whereby held fabric extending from between said one hooking groove and one hooking element and over the device is spaced above said other hooking groove and hooking element.
Claim 2
Independent Claim
225 words
A device for fixing and stretching wall fabrics, comprising: a sole piece in the form of a flat strip adapted to be secured to a wall, the side edges of said flat strip being curved toward each other forming at each side of said flat strip a hooking groove, one of the hooking grooves having a larger curve radius than the other of the hooking grooves; and a shaped section comprising a hollow rib portion having a relatively narrow entry opening, a wing portion extending outwardly from each side of the entry opening of said hollow rib portion, the lengthwise edges of the wing portions being curved toward each other forming at each side of the shaped section a hooking element, the curve radius of one of the hook elements corresponding to that of said one hooking groove and the curve radius of the other hooking groove corresponding to that of the other said hooking groove, the shaped section being dimensioned to be inserted in the sole piece with the hooking elements of the shaped section disposed within the corresponding hooking grooves of the sole piece for securing fabric between said sole piece and said shaped section, whereby held fabric extending from between said one hooking groove and one hooking element and over the device is spaced above said other hooking groove and hooking element.
Claim 3
Dependent Claim
25 words
Device according to claim 1 wherein said wing portions in the unstressed condition are disposed relative to one another at an angle of substantially 150*.
Claim 4
Dependent Claim
34 words
Device according to claim 1 wherein the inner surface of said one hooking groove, on the one hand, and the outer surface of said one hooking element, on the other hand, are both scored.
Claim 5
Dependent Claim
28 words
Device according to claim 1 wherein within the hollow rib and towards the entry thereof, there are, on either side, lengthwise slots bounding the rims of said entry.
Claim 6
Dependent Claim
50 words
Device according to claim 1 wherein a flexible rod is inserted in the said hollow rib whereby a loop of fabric extending into the interior of the hollow rib portion and around said rod, is frictionally held between the rod and the adjacent interior walls of the hollow rib portion.
Claim 7
Dependent Claim
30 words
Device according to claim 1 wherein, the overall width of the shaped section when inserted in the sole piece is slightly less than the internal width of the sole piece.
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) | 1978-12-29 | 1979-06-30 | 1979-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-12-29 | 1983-06-30 | 1983-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-12-29 | 1987-06-30 | 1987-12-30 | $7700.00 | Window Closed / Lapsed |