US3261267A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bags
Assignee: Amcor Flexibles North America Inc
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Filing: 1965-04-23
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Granted: 1966-07-19
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Expires: 1985-04-23
Abstract
No abstract record available.
Inventors
- 👤 Arnold F Becker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 23:16
CPC Classifications
B; B65; B65D; B65D31/00; B65D31/14; B65D31/142; B31; B31B; B31B70/00; B31B70/74; B31B70/81; B31B70/84; B31B70/85; Y; Y10; Y10S; Y10S493/00; Y10S493/916; Y10S493/936
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
271 words
IN THE MANUFACTURE OF PASTED VALVE BAGS WITH VALVE SLEEVE, THE STEPS OF CONTINUOUSLY FEEDING FORWARD CONTINUOUS FLAT TUBING OF RELATIVELY LIMP FLEXIBLE MATERIAL HAVING FIRST AND SECOND WALLS JOINED AT THE SIDES OF THE TUBING, CONTINUOUSLY FEEDING FORWARD A CONTINUOUS STRIP OF RELATIVELY STIFF MATERIAL, COMBINING THE TUBING AND THE STRIP WITH THE STRIP AND THE FIRST WALL OF THE TUBING AND ADHERING THE STRIP AND THE FIRST WALL OF THE TUBING TOGETHER AT VALVE SLEEVE LENGTH INTERVALS ALONG THEIR LENGTH IN ZONES WHICH, LENGTHWISE OF THE STRIP AND TUBING, ARE UNADHERED PORTIONS OF THE TUBING AND THE STRIP AT INTERVALS UNADHERED PORTIONS OF THE TUBING AND THE STRIP AT INTERVALS ALONG THEIR LENGTH, SEGMENTING THE COMBINED TUBING AND STRIP AT VALVE SLEEVE LENGTH INTERVALS INTO INDIVIDUAL VALVE SLEEVES WHICH SAID SEGMENTING BEING EFFECTED ON LINES SO LOCATED THAT EACH SLEEVE COMPRISES A SEGMENT OF THE TUBING AND A SEGMENT OF THE STRIP WITH THE SEGMENT OF THE STRIP AND THE SEGMENT OF THE TUBING ADHERED TOGETHER ONLY TOWARD ONE END OF THE SLEEVE ON ONE OF SAID NARROW ZONES AND THE REMAINDER OF THE SEGMENT OF THE TUBING AND THE SEGMENT OF THE STRIP, CONSTITUTING A MAJOR PORTION OF THEIR LENGTH, BEING FREE OF ONE ANOTHER TO THE OTHER END OF THE SLEEVE, APPLYING EACH SLEEVE TO ONE OF THE END FLAPS OF AN OPENED-UP CLOSURE FO A PASTED VALVE BAG WITH THE PORTION OF THE OTHER WALL OF THE TUBING SEGMENT AT SAID ONE END OF THE SLEEVE OVERLYING THE END FLAP AND WITH THE SLEEVE EXTENDING INWARD FROM SAID ONE END FLAP, AND THEN COMPLETING THE CLOSURE.
Claim 2
Dependent Claim
271 words
IN THE MANUFACTURE OF PASTED VALVE BAGS WITH VALVE SLEEVE, THE STEPS OF CONTINUOUSLY FEEDING FORWARD CONTINUOUS FLAT TUBING OF RELATIVELY LIMP FLEXIBLE MATERIAL HAVING FIRST AND SECOND WALLS JOINED AT THE SIDES OF THE TUBING, CONTINUOUSLY FEEDING FORWARD A CONTINUOUS STRIP OF RELATIVELY STIFF MATERIAL, COMBINING THE TUBING AND THE STRIP WITH THE STRIP AND THE FIRST WALL OF THE TUBING AND ADHERING THE STRIP AND THE FIRST WALL OF THE TUBING TOGETHER AT VALVE SLEEVE LENGTH INTERVALS ALONG THEIR LENGTH IN ZONES WHICH, LENGTHWISE OF THE STRIP AND TUBING, ARE UNADHERED PORTIONS OF THE TUBING AND THE STRIP AT INTERVALS UNADHERED PORTIONS OF THE TUBING AND THE STRIP AT INTERVALS ALONG THEIR LENGTH, SEGMENTING THE COMBINED TUBING AND STRIP AT VALVE SLEEVE LENGTH INTERVALS INTO INDIVIDUAL VALVE SLEEVES WHICH SAID SEGMENTING BEING EFFECTED ON LINES SO LOCATED THAT EACH SLEEVE COMPRISES A SEGMENT OF THE TUBING AND A SEGMENT OF THE STRIP WITH THE SEGMENT OF THE STRIP AND THE SEGMENT OF THE TUBING ADHERED TOGETHER ONLY TOWARD ONE END OF THE SLEEVE ON ONE OF SAID NARROW ZONES AND THE REMAINDER OF THE SEGMENT OF THE TUBING AND THE SEGMENT OF THE STRIP, CONSTITUTING A MAJOR PORTION OF THEIR LENGTH, BEING FREE OF ONE ANOTHER TO THE OTHER END OF THE SLEEVE, APPLYING EACH SLEEVE TO ONE OF THE END FLAPS OF AN OPENED-UP CLOSURE FO A PASTED VALVE BAG WITH THE PORTION OF THE OTHER WALL OF THE TUBING SEGMENT AT SAID ONE END OF THE SLEEVE OVERLYING THE END FLAP AND WITH THE SLEEVE EXTENDING INWARD FROM SAID ONE END FLAP, AND THEN COMPLETING THE CLOSURE.
References Cited (Backward Citations)
CA648079A
Cited
US3097574A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-07-18 | 1970-01-17 | 1970-07-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-18 | 1974-01-17 | 1974-07-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-18 | 1978-01-17 | 1978-07-19 | $7700.00 | Window Closed / Lapsed |