Patent US3680604A successfully refreshed from Google Patents.
US3680604A
Expired / Lapsed
US
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Apparatus for making a slide-fastener coupling coil
Assignee: Opti Holding AG
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Filing: 1970-09-14
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Granted: 1972-08-01
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Expires: 1990-09-14
Abstract
Abstract An apparatus for making a slide-fastener coupling coil comprises a mandrel mounted on a support having a pair of portions with noncoincident, advantageously parallel, axes. Mechanism is provided rotatable about each of the mechanisms for winding a synthetic-resin monofilament around the mandrel. A supply of filler cord can be provided between the mechanisms, and this cord can be fed to the mandrel through a longitudinal passage in the support. The downstream mechanism can be arranged to hold the tension in the monofilament at the same level.
Inventors
- 👤 Alfons Frohlich
- 👤 Franz Hochlehnert
- 👤 Werner Rademacher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:41
CPC Classifications
B; B29; B29D; B29D5/00; B29D5/06; Y; Y10; Y10S; Y10S425/00; Y10S425/814
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
53 words
An apparatus for making a slide-fastener coupling coil comprising: a mandrel; a support for said mandrel having a air of portions with noncoincident axes; and means for feeding a filament toward said mandrel and winding said filament around said mandrel, said means including respective mechanisms carrying said filament and rotatable about said axes.
Claim 2
Independent Claim
53 words
An apparatus for making a slide-fastener coupling coil comprising: a mandrel; a support for said mandrel having a air of portions with noncoincident axes; and means for feeding a filament toward said mandrel and winding said filament around said mandrel, said means including respective mechanisms carrying said filament and rotatable about said axes.
Claim 3
Dependent Claim
43 words
The apparatus defined in claim 1, further comprising: drive means for synchronously rotating said mechanisms about said axes in the same sense and at the same rate; and supply means nonrotatable about either of said axes for feeding a filament to said mechanisms.
Claim 4
Dependent Claim
17 words
The apparatus defined in claim 2 wherein said axes are parallel to and offset from each other.
Claim 5
Dependent Claim
16 words
The apparatus defined in claim 3 wherein said mandrel is coaxial with one of said axes.
Claim 6
Dependent Claim
20 words
The apparatus defined in claim 2 wherein said supply means includes means upstream of said mechanisms positively engaging said filament.
Claim 7
Dependent Claim
96 words
The apparatus defined in claim 2 wherein said mechanisms include a downstream mechanism and an upstream mechanism, said downstream mechanism having a downstream-mechanism axis and comprising: an element rotatable about the downstream-mechanism axis, said mandrel being coaxial therewith; a body mounted in said element for rotation about a central axis parallel to said downstream-mechanism axis, said body being formed with a guide passage offset from said central axis; and means inhibiting rotation of said body about said central axis whereby on rotation of said element said guide passage defines an orbit eccentric to said downstream-mechanism axis.
Claim 8
Dependent Claim
41 words
The apparatus defined in claim 6 wherein said means inhibiting rotation includes a pair of like gears, one of said gears being mounted on the downstream portion of said support and the other of said gears being mounted on said body.
Claim 9
Dependent Claim
50 words
The apparatus defined in claim 6 wherein said guide passage, said central axis, and said downstream-mechanism axis are all parallel and mutually offset, said guide passage being offset from said central axis by a distance equal to one-fourth of the distance said central axis is offset from said downstream-mechanism axis.
Claim 10
Dependent Claim
22 words
The apparatus defined in claim 2 wherein said mandrel has an axis parallel to and offset from said axes of said portions.
Claim 11
Dependent Claim
39 words
The apparatus defined in claim 2, further comprising a supply of filler cord, guide means for carrying said cord from said supply to said mandrel including a passage formed through said support and a supply holder on said support.
Claim 12
Dependent Claim
65 words
The apparatus defined in claim 2 wherein said supply means includes means upstream of said mechanisms positively engaging said filament for feeding same at a predetermined rate toward said mandrel, said mechanisms rotating at a rate determined by said drive means, said apparatus further comprising means operatively connected to said drive means for varying one of said rates relative to the other of said rates.
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) | 1975-08-01 | 1976-01-31 | 1976-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-01 | 1980-01-31 | 1980-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-01 | 1984-01-31 | 1984-08-01 | $7700.00 | Window Closed / Lapsed |