US3694868A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Slide fastener stringer
Assignee: KARL F NAGELE FEINMASCHINENBAU
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Filing: 1970-01-21
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Granted: 1972-10-03
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Expires: 1990-01-21
Abstract
Abstract The interlocking elements of a slide fastener stringer consisting of consecutive sections of a plastic wire have elongated leg portions parallel to each other, transverse to the sequence of elements, and linked by connecting portions common to two adjacent elements. The fastener elements are secured to a carrier tape by two rows of thread loops offset from the connecting portions in opposite directions longitudinally of the leg portions.
Inventors
- 👤 Siegfried W Spindler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 20:21
CPC Classifications
A; A44; A44B; A44B19/00; A44B19/24; A44B19/40; A44B19/406; A44B19/10; A44B19/12; Y; Y10; Y10T; Y10T24/00; Y10T24/25; Y10T24/2518; Y10T24/2527
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
170 words
In a slide fastener stringer having a carrier member; a sequence of interlocking fastener elements, said sequence extending in a predetermined direction, said elements being constituted by respective sequential sections of a continuous plastic wire, each element having a plurality of substantially parallel leg portions elongated in a direction transverse to said predetermined direction, and two connecting portions in common with two other elements respectively, each connecting portion extending in said predetermined direction and connecting respective leg portions of two adjacent elements; and fastening means engaging said leg portions and securing said elements to said carrier member, the improvement in the fastening means which comprises: a. two rows of thread loops extending in said predetermined direction; and b. locking means holding said loops in respective positions relative to said carrier member and said leg portions in which said loops engage said leg portions and secure the same to said carrier member, and said rows of loops are offset from said connecting portions in opposite directions longitudinally of said leg portions.
Claim 2
Dependent Claim
170 words
In a slide fastener stringer having a carrier member; a sequence of interlocking fastener elements, said sequence extending in a predetermined direction, said elements being constituted by respective sequential sections of a continuous plastic wire, each element having a plurality of substantially parallel leg portions elongated in a direction transverse to said predetermined direction, and two connecting portions in common with two other elements respectively, each connecting portion extending in said predetermined direction and connecting respective leg portions of two adjacent elements; and fastening means engaging said leg portions and securing said elements to said carrier member, the improvement in the fastening means which comprises: a. two rows of thread loops extending in said predetermined direction; and b. locking means holding said loops in respective positions relative to said carrier member and said leg portions in which said loops engage said leg portions and secure the same to said carrier member, and said rows of loops are offset from said connecting portions in opposite directions longitudinally of said leg portions.
Claim 3
Dependent Claim
41 words
In a stringer as set forth in claim 1, each element having two bight portions spaced in said traverse direction and defining an approximate U-shape with two of said leg portions, said connecting portion being approximately equidistant from said bight portions.
Claim 4
Dependent Claim
32 words
In a stringer as set forth in claim 2, the connected leg portions of said two adjacent elements extending from said common connecting portion in opposite directions transverse to said predetermined direction.
Claim 5
Dependent Claim
52 words
In a stringer as set forth in claim 2, the connected leg portions of said two adjacent elements constituting a pair of connected leg portions and extending from said common connecting portion in a common direction transverse to said predetermined direction, consecutive pairs of said leg portions extending in opposite transverse directions.
Claim 6
Dependent Claim
19 words
In a stringer as set forth in claim 2, said connecting portions being elongated substantially in said predetermined direction.
Claim 7
Dependent Claim
22 words
In a stringer as set forth in claim 1, the two connecting portions of each of said elements abuttingly engaging each other.
Claim 8
Dependent Claim
17 words
In a stringer as set forth in claim 1, said thread loops abuttingly engaging said connecting portions.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-10-03 | 1976-04-03 | 1976-10-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-03 | 1980-04-03 | 1980-10-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-03 | 1984-04-03 | 1984-10-03 | $7700.00 | Window Closed / Lapsed |