Patent US4265692A successfully refreshed from Google Patents.
US4265692A
Expired / Lapsed
US
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Method for producing tear tape and seal and tear line for packaging
Assignee: CPS INDUSTRIES AN OPERATING DIVISION OF ARCATA NATIONAL Corp
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Filing: 1979-02-21
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Granted: 1981-05-05
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Expires: 1999-02-21
Abstract
Abstract A reinforcement seal and tear tape or line is produced by a method wherein selected fibrous yarn is passed into a bath of hot-melt adhesive maintained at a desired temperature. The yarn is spread laterally and tensioned within the bath to cause the adhesive to penetrate and surround the fibrous yarn. The adhesive adhered to the yarn is extruded within the bath to controllably reduce the amount and cross-sectional shape of the adhesive coating on the yarn by contact with rollers, one of which is submerged in the adhesive bath or a die partly submerged in the adhesive bath. The yarn with an extruded adhesive coating thereon is then cooled by passing through a refrigerated cooling chamber after which the adhesive coating is formed into a desired shape by contact with a chilled-forming surface of superimposed rollers. Reels are then used to coil the coated yarn into spools.
Inventors
- 👤 Arnold F. Stone
- 👤 William D. Kinnard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:43
CPC Classifications
D; D06; D06M; D06M17/00; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1007; Y10T156/1016; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/2964; Y10T428/2967; Y10T428/2969; Y10T428/2971
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
119 words
A method to produce line or tape for packaging or the like including the steps of: selecting a fibrous yarn having a desired denier and tensile strength, passing the selected yarn into a bath of hot-melt adhesive maintained at a desired temperature essentially above the liduidus temperature of the adhesive, laterally spreading the yarn under a controlled tension within the bath of hot-melt adhesive to cause the adhesive to penetrate and surround the fibrous yarn, thereafter extruding a coating of adhesive onto yarn in the bath, passing the adhesive-coated yarn from the bath, cooling the extruded coating of adhesive on the yarn, forming the cooled adhesive coating on the yarn into a desired shape, and coiling the adhesive-coated yarn.
Claim 2
Independent Claim
119 words
A method to produce line or tape for packaging or the like including the steps of: selecting a fibrous yarn having a desired denier and tensile strength, passing the selected yarn into a bath of hot-melt adhesive maintained at a desired temperature essentially above the liduidus temperature of the adhesive, laterally spreading the yarn under a controlled tension within the bath of hot-melt adhesive to cause the adhesive to penetrate and surround the fibrous yarn, thereafter extruding a coating of adhesive onto yarn in the bath, passing the adhesive-coated yarn from the bath, cooling the extruded coating of adhesive on the yarn, forming the cooled adhesive coating on the yarn into a desired shape, and coiling the adhesive-coated yarn.
Claim 3
Dependent Claim
27 words
The method according to claim 1 wherein said step of extruding includes compacting adhesive onto the yarn while at least partly submerged in the bath of adhesive.
Claim 4
Dependent Claim
24 words
The method according to claim 2 wherein said step of extruding further includes using a temperature controlled surface to compact adhesive on the yarn.
Claim 5
Dependent Claim
26 words
The method according to claim 1 wherein said step of laterally spreading includes contacting the yarn in said bath with the convex surface of a roller.
Claim 6
Dependent Claim
21 words
The method according to claim 1 wherein said step of forming includes passing the adhesive-coated yarn between a nips of rollers.
Claim 7
Dependent Claim
23 words
The method according to claim 1 wherein said step of cooling includes passing yarn with compacted adhesive thereon through a refrigerated cooling chamber.
Claim 8
Dependent Claim
24 words
The method according to claim 1 wherein said step of forming includes adjoining adhesive-coated yarn by contact between the adhesive coating on the yarn.
Claim 9
Dependent Claim
45 words
The method according to claim 1 wherein said step of extruding includes passing yarn about an arcuate segment and through an opening at the nip of grooved rollers while at least one of which is at least partly submerged in said bath of hot-melt adhesive.
Claim 10
Dependent Claim
28 words
The method according to claim 1 wherein said step of extruding includes passing yarn through a die while at least partly submerged in said bath of hot-melt adhesive.
Claim 11
Dependent Claim
20 words
The method according to claim 1 including the further step of guiding the yarn into said bath of hot-melt adhesive.
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) | 1984-05-04 | 1984-11-03 | 1985-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-05-04 | 1988-11-03 | 1989-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-05-04 | 1992-11-03 | 1993-05-05 | $7700.00 | Window Closed / Lapsed |