US3311032A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tear tape for plastic packaging materials
Assignee: Procter and Gamble Co
•
Filing: 1964-12-24
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Granted: 1967-03-28
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Expires: 1984-12-24
Abstract
No abstract record available.
Inventors
- 👤 Malcolm B Lucas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:55
CPC Classifications
B; B65; B65D; B65D75/00; B65D75/52; B65D75/58; B65D75/5827; B65D75/5833; B65D75/5838; B65B; B65B61/00; B65B61/18; B65B61/182; B31; B31B; B31B50/00; B31B50/74; B31B50/81; B31B50/812; B31B50/8125; B31B50/8126; B31B50/8129; B65D75/40; B65D75/44; B65D75/46; Y; Y10; Y10T; Y10T156/00; Y10T156/12; Y10T156/1317; Y10T156/1322; Y10T156/133
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
216 words
A METHOD FOR APPLYING TEAR TAPES AT PREDETERMINED SPACED INTERVALS TO A CONTINUOUS WEB OF PLASTIC PACKAGING MATERIAL COMPRISING THE STEPS OF: (A) WITHDRAWING A CONTINUOUS WEB OF TEAR TAPE MATERIAL FROM A SUPPLY ROLL AND SEVERING THE WEB INTO A PLURALITY OF SUCCESSSIVE TEAR TAPES HAVING A PREDETERMINED AND SUBSTANTIALLY UNIFORM LENGTH, (B) WITHDRAWING A CONTINUOUS WEB OF GRAINED PLASTIC PACKAGING MATERIAL FROM A SUPPLY ROLL SUCH THAT ITS DIRECTION OF GRAIN ORIENTATION CORRESPONDS TO ITS DIRECTION OF MOVEMENT, (C) HEATING A HOT-MELT ADHESIVE TO A TEMPERATURE OF FROM ABOUT 375*F. TO A TEMPERATURE WHICH WILL NOT CAUSE DAMAGE TO ANY OF THE COMPONENTS COMPRISING THE ADHESIVE, THE PLASTIC PACKAGING MATERIAL AND THE TEAR TAPE MATERIAL, (D) APPLYING SUCCESSIVE ELONGATED STRIPES OF THE HOTMELT ADHESIVE IN NARROW AREAS AT SPACED INTERVALS ON THE WEB OF PLASTIC PACKAGING MATERIAL SUCH THAT BOTH THE WIDTH AND LENGTH OF EACH ADHESIVE AREA IS LESS THAN THE CORRESPONDING WIDTH AND LENGTH OF THE TEAR TAPES, SAID ADHESIVE BEING APPLIED SUCH THAT SUCCESSIVE STRIPES ARE IN LONGITUDINAL ALIGNMENT, (E) ADHERING A TEAR TAPE TO EACH SUCCESSIVE STRIPE OF ADHESIVE SUCH THAT ONE END OF THE TEAR TAPE COINCIDES WITH ONE END OF THE ADHESIVE STRIPE THEREBY LEAVING THE OTHER END OF THE TEAR TAPE FREE TO FORM A PULL TAB.
Claim 2
Independent Claim
216 words
A METHOD FOR APPLYING TEAR TAPES AT PREDETERMINED SPACED INTERVALS TO A CONTINUOUS WEB OF PLASTIC PACKAGING MATERIAL COMPRISING THE STEPS OF: (A) WITHDRAWING A CONTINUOUS WEB OF TEAR TAPE MATERIAL FROM A SUPPLY ROLL AND SEVERING THE WEB INTO A PLURALITY OF SUCCESSSIVE TEAR TAPES HAVING A PREDETERMINED AND SUBSTANTIALLY UNIFORM LENGTH, (B) WITHDRAWING A CONTINUOUS WEB OF GRAINED PLASTIC PACKAGING MATERIAL FROM A SUPPLY ROLL SUCH THAT ITS DIRECTION OF GRAIN ORIENTATION CORRESPONDS TO ITS DIRECTION OF MOVEMENT, (C) HEATING A HOT-MELT ADHESIVE TO A TEMPERATURE OF FROM ABOUT 375*F. TO A TEMPERATURE WHICH WILL NOT CAUSE DAMAGE TO ANY OF THE COMPONENTS COMPRISING THE ADHESIVE, THE PLASTIC PACKAGING MATERIAL AND THE TEAR TAPE MATERIAL, (D) APPLYING SUCCESSIVE ELONGATED STRIPES OF THE HOTMELT ADHESIVE IN NARROW AREAS AT SPACED INTERVALS ON THE WEB OF PLASTIC PACKAGING MATERIAL SUCH THAT BOTH THE WIDTH AND LENGTH OF EACH ADHESIVE AREA IS LESS THAN THE CORRESPONDING WIDTH AND LENGTH OF THE TEAR TAPES, SAID ADHESIVE BEING APPLIED SUCH THAT SUCCESSIVE STRIPES ARE IN LONGITUDINAL ALIGNMENT, (E) ADHERING A TEAR TAPE TO EACH SUCCESSIVE STRIPE OF ADHESIVE SUCH THAT ONE END OF THE TEAR TAPE COINCIDES WITH ONE END OF THE ADHESIVE STRIPE THEREBY LEAVING THE OTHER END OF THE TEAR TAPE FREE TO FORM A PULL TAB.
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) | 1970-03-27 | 1970-09-26 | 1971-03-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-27 | 1974-09-26 | 1975-03-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-27 | 1978-09-26 | 1979-03-28 | $7700.00 | Window Closed / Lapsed |