Patent US2803228A successfully refreshed from Google Patents.
Patent US3244573A successfully refreshed from Google Patents.
US3244573A
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Heat and tear sealing dies
Assignee: Scholl Manufacturing Co Inc
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Filing: 1962-05-21
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Granted: 1966-04-05
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Expires: 1982-05-21
Abstract
No abstract record available.
Inventors
- 👤 Sr Milo Louis Raffaelli
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:51
CPC Classifications
B; B29; B29C; B29C65/00; B29C65/74; B29C65/743; B29C65/7441; A; A61; A61F; A61F13/00; A61F13/06; A61F13/064; A61F13/067; B29C65/02; B29C65/04; B29C65/7437; B29C66/00; B29C66/01; B29C66/05; B29C66/10; B29C66/11; B29C66/112; B29C66/1122; B29C66/13; B29C66/133; B29C66/40; B29C66/41; B29C66/43; B29C66/436; B29C66/80; B29C66/81; B29C66/812; B29C66/8126; B29C66/81262; B29C66/81263; B29C66/814; B29C66/8141; B29C66/81427; B29C66/81431; B29C66/8145; B29C66/81457; B29C66/816; B29C66/8167; B29C66/83; B29C66/832; B29C66/8322; B29C2793/00; B29C2793/0009; B29C2793/0018; B29C66/70; B29C66/71; B29C66/72; B29C66/727; B29C66/729; B29C66/81411; B29C66/81415; B29K; B29K2105/00; B29K2105/04; B29L; B29L2031/00; B29L2031/48; B29L2031/50; B29L2031/507; B29L2031/753; Y; Y10; Y10T; Y10T156/00; Y10T156/12; Y10T156/1313
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
154 words
ELECTRONIC HEAT AND TEAR SEALING DIES, COMPRISING A LOWER DIE INCLUDING A CONDUCTIVE PLATE HAVING A PLURALITY OF RECESSES THEREIN, A PLUG IN EACH OF SAID RECESSES TO PROVIDE A SET SHAPE IN MATERIAL ACTED UPON BY THE DIES, RESILIENT RELIEF MEANS BENEATH EACH SAID PLUG, BLANK GUIDE PINS UPSTANDING FROM SAID PLATE, A ROUNDED PROJECTION EXTENDING FORWARDLY ON SAID PLATE OPPOSITE EACH SAID PLUG, A FLANGE DEPENDING FROM THE FORWARD PART OF EACH SAID PROJECTION, AND AN UPPER DIE INCLUDING A CONDUCTIVE PLATE, A DIE MEMBER IN THE FORM OF A DEPENDING SKIRT ON SAID PLATE FOR EACH OF THE PLUGS IN THE LOWER DIE, A KNIFE EDGE ON EACH OF SAID DIE MEMBERS TO EFFECT A HEAT AND TEAR SEAL SEAM, AND AN INNER AUXILIARY DIE MEMBER INSIDE SAID SKIRT IN POSITION TO COOPERATE WITH ONE OF SAID PLUGS AND HAVING A BLUNT WORKING EDGE TO EFFECT A HEAT SEAL SEAM ONLY.
Claim 2
Dependent Claim
154 words
ELECTRONIC HEAT AND TEAR SEALING DIES, COMPRISING A LOWER DIE INCLUDING A CONDUCTIVE PLATE HAVING A PLURALITY OF RECESSES THEREIN, A PLUG IN EACH OF SAID RECESSES TO PROVIDE A SET SHAPE IN MATERIAL ACTED UPON BY THE DIES, RESILIENT RELIEF MEANS BENEATH EACH SAID PLUG, BLANK GUIDE PINS UPSTANDING FROM SAID PLATE, A ROUNDED PROJECTION EXTENDING FORWARDLY ON SAID PLATE OPPOSITE EACH SAID PLUG, A FLANGE DEPENDING FROM THE FORWARD PART OF EACH SAID PROJECTION, AND AN UPPER DIE INCLUDING A CONDUCTIVE PLATE, A DIE MEMBER IN THE FORM OF A DEPENDING SKIRT ON SAID PLATE FOR EACH OF THE PLUGS IN THE LOWER DIE, A KNIFE EDGE ON EACH OF SAID DIE MEMBERS TO EFFECT A HEAT AND TEAR SEAL SEAM, AND AN INNER AUXILIARY DIE MEMBER INSIDE SAID SKIRT IN POSITION TO COOPERATE WITH ONE OF SAID PLUGS AND HAVING A BLUNT WORKING EDGE TO EFFECT A HEAT SEAL SEAM ONLY.
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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) | 1969-04-04 | 1969-10-04 | 1970-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-04 | 1973-10-04 | 1974-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-04 | 1977-10-04 | 1978-04-05 | $7700.00 | Window Closed / Lapsed |