Patent US3683738A successfully refreshed from Google Patents.
US3683738A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tack strip
Assignee: Individual
•
Filing: 1971-02-26
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Granted: 1972-08-15
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Expires: 1991-02-26
Abstract
Abstract A tack strip is disclosed of the type formed from a length of flexible, non-resilient metal longitudinally folded to provide first and second angularly disposed flanges, both serrated to provide a series of tabs separated by notches with the first flange to underlie a margin of upholstery material and the second flange provided with a series of projections overlying the first flange and constituting anchoring tacks when the second flange is folded over the driven flat against the material. The invention provides each tab of the first flange with a hole positioned always to receive one projection and the notches of the first flange to receive the other projections unless the strip is so bent as to close them.
Inventors
- 👤 Vaselios N Kyriakos
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 15:59
CPC Classifications
F; F16; F16B; F16B15/00; F16B15/0023; F16B15/003; F16B15/0046; A; A47; A47C; A47C31/00; A47C31/02; A47C31/026; Y; Y10; Y10S; Y10S411/00; Y10S411/921
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
257 words
A tack strip for anchoring upholstery materials to underlying wood structure, said strip comprising a band of flexible, nonresilient metal having a lengthwise fold dividing it into first and second angularly disposed flanges, both flanges serrated to provide a series of tabs with notches between them, each notch extending at least to the fold approximately midway between the ends of a tab of the other series, the first flange to underlie a margin of the material and the second flange to be folded over said margin, each tab of the second flange including a plurality of integral projections, each disposed at right angles thereto to overlie the first flange and constituting a tack, and each notch of the first flange having one margin substantially at right angles to a tab of the second flange and its other margin inclined outwardly away from said one margin with its outer extremity substantially in alignment with the proximate edge of a next tab of said second flange, and each tab of said first flange having a hole with which one tack of a tab of said second flange is in transverse alignment, said tacks of said second flange and said holes and notches of said first flange being arranged so that, when said flanges are folded together, appropriate ones of the tacks pass through the tack holes of the first flange and the other tacks pass through the notches thereof both when the strip is straight and also when it is curved in either lateral direction to a predetermined extent.
Claim 2
Dependent Claim
257 words
A tack strip for anchoring upholstery materials to underlying wood structure, said strip comprising a band of flexible, nonresilient metal having a lengthwise fold dividing it into first and second angularly disposed flanges, both flanges serrated to provide a series of tabs with notches between them, each notch extending at least to the fold approximately midway between the ends of a tab of the other series, the first flange to underlie a margin of the material and the second flange to be folded over said margin, each tab of the second flange including a plurality of integral projections, each disposed at right angles thereto to overlie the first flange and constituting a tack, and each notch of the first flange having one margin substantially at right angles to a tab of the second flange and its other margin inclined outwardly away from said one margin with its outer extremity substantially in alignment with the proximate edge of a next tab of said second flange, and each tab of said first flange having a hole with which one tack of a tab of said second flange is in transverse alignment, said tacks of said second flange and said holes and notches of said first flange being arranged so that, when said flanges are folded together, appropriate ones of the tacks pass through the tack holes of the first flange and the other tacks pass through the notches thereof both when the strip is straight and also when it is curved in either lateral direction to a predetermined extent.
Claim 3
Dependent Claim
44 words
The tack strip of claim 1 in which each tab of the second flange includes three tack-establishing projections one end projection for entry through the hole of a tab of the first flange and the other two projections for entry through the proximate notch.
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) | 1975-08-15 | 1976-02-14 | 1976-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-15 | 1980-02-14 | 1980-08-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-15 | 1984-02-14 | 1984-08-15 | $7700.00 | Window Closed / Lapsed |