US3286433A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bag top sealing machine and method for forming a bag top closure
Assignee: Amcor Flexibles North America Inc
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Filing: 1963-02-14
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Granted: 1966-11-22
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Expires: 1983-02-14
Abstract
No abstract record available.
Inventors
- 👤 Harold K Johnson
- 👤 Richard H Ayres
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 10:04
CPC Classifications
B; B65; B65B; B65B51/00; B65B51/10; B65B51/24; B29; B29C; B29C65/00; B29C65/02; B29C65/10; B29C65/78; B29C65/7858; B29C65/7861; B29C65/787; B29C65/7873; B29C66/00; B29C66/01; B29C66/02; B29C66/022; B29C66/0222; B29C66/05; B29C66/10; B29C66/11; B29C66/112; B29C66/1122; B29C66/40; B29C66/41; B29C66/43; B29C66/431; B29C66/4312; B29C66/43121; B29C66/70; B29C66/73; B29C66/737; B29C66/7373; B29C66/80; B29C66/81; B29C66/816; B29C66/8161; B29C66/83; B29C66/836; B29C66/84; B29C66/849; B29C66/87; B29C66/874; B29C66/8744; B29C66/87441; B29C66/90; B29C66/91; B29C66/912; B29C66/9121; B29C66/914; B29C66/9141; B29C66/9161; B29C66/919; B29C66/13; B29C66/137; B29C66/739; B29C66/7392; B29C66/73921; B29C66/92; B29C66/924; B29C66/9241
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
110 words
A METHOD FOR FORMING A BAG TOP CLOSURE SEAL ON A BAG TOP OF A HEAT SEALABLE BAG COMPRISING SUPPORTINGLY CONVEYING IN A GIVEN HORIZONTAL DIRECTION A HEAT SEALABLE BAG AT ITS SIDEWALLS AT AN ELEVATION BELOW THE TOP MARGINAL EDGES OF THE BAG, SPREADING THE TOP MARGINAL EDGE PORTIONS OF THE BAG AS IT IS BEING CONVEYED, CLEANING THE INTERIOR SURFACE OF THE SPREAD MARGINAL EDGE PORTIONS, AND AFTER CLEANING THE SPREAD MARGINAL EDGE PORTIONS, DIRECTING STREAMS OF HOT AIR TOWARD ONE ANOTHER IN DIRECTIONS TRANSVERSE TO THE MOVEMENT OF THE BAG TO CONTACT THE BAG TOP ADJACENT TO ITS MARGINAL EDGES TO FORM A HEAT SEAL BEAD CLOSURE.
Claim 2
Independent Claim
110 words
A METHOD FOR FORMING A BAG TOP CLOSURE SEAL ON A BAG TOP OF A HEAT SEALABLE BAG COMPRISING SUPPORTINGLY CONVEYING IN A GIVEN HORIZONTAL DIRECTION A HEAT SEALABLE BAG AT ITS SIDEWALLS AT AN ELEVATION BELOW THE TOP MARGINAL EDGES OF THE BAG, SPREADING THE TOP MARGINAL EDGE PORTIONS OF THE BAG AS IT IS BEING CONVEYED, CLEANING THE INTERIOR SURFACE OF THE SPREAD MARGINAL EDGE PORTIONS, AND AFTER CLEANING THE SPREAD MARGINAL EDGE PORTIONS, DIRECTING STREAMS OF HOT AIR TOWARD ONE ANOTHER IN DIRECTIONS TRANSVERSE TO THE MOVEMENT OF THE BAG TO CONTACT THE BAG TOP ADJACENT TO ITS MARGINAL EDGES TO FORM A HEAT SEAL BEAD CLOSURE.
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) | 1969-11-21 | 1970-05-23 | 1970-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-21 | 1974-05-23 | 1974-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-21 | 1978-05-23 | 1978-11-22 | $7700.00 | Window Closed / Lapsed |