US3113198A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for heat sealing
Assignee: Fort James Corp
•
Filing: 1960-05-31
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Granted: 1963-12-03
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Expires: 1980-05-31
Abstract
No abstract record available.
Inventors
- 👤 Dalton L Shinn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 15:53
CPC Classifications
H; H05; H05B; H05B3/00; G; G05; G05D; G05D23/00; G05D23/19; G05D23/1906; G05D23/1909; G05D23/20; G05D23/24
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
119 words
A HEATING UNIT FOR SEALING SHEETS OF HEAT SEALABLE MATERIAL, SAID UNIT COMPRISING AN ELONGATE, GENERALLY RECTANGULAR BODY MEMBER HAVING A FACE, A SHEET-LIKE, ELECTRICAL RESISTANCE TYPE HEATER ELEMENT EXTENDING ACROSS SAID FACE, ELECTRICAL INSULATOR MEANS DISPOSED BETWEEN SAID ELEMENT AND SAID BODY MEMBER, A PAIR OF HEADER ELEMENTS EACH COMPRISING A METAL PLATE CONNECTED ONE TO EACH OF THE OPPOSITE ENDS OF SAID HEATER ELEMENT ACROSS THE WIDTH OF SAID HEATER ELEMENT, MEANS FOR CONNECTING SAID HEADER ELEMENTS TO A SOURCE OF ELECTRICAL ENERGY, AND A WAFER TYPE TEMPERATURE SENSING ELEMENT BONDED TO THE SURFACE OF SAID HEATER ELEMENT FACING SAID BODY MEMBER SO AS TO DETECT WITH A MINIMUM OF LAG THE TEMPERATURE OF SAID HEATER ELEMENT.
Claim 2
Dependent Claim
119 words
A HEATING UNIT FOR SEALING SHEETS OF HEAT SEALABLE MATERIAL, SAID UNIT COMPRISING AN ELONGATE, GENERALLY RECTANGULAR BODY MEMBER HAVING A FACE, A SHEET-LIKE, ELECTRICAL RESISTANCE TYPE HEATER ELEMENT EXTENDING ACROSS SAID FACE, ELECTRICAL INSULATOR MEANS DISPOSED BETWEEN SAID ELEMENT AND SAID BODY MEMBER, A PAIR OF HEADER ELEMENTS EACH COMPRISING A METAL PLATE CONNECTED ONE TO EACH OF THE OPPOSITE ENDS OF SAID HEATER ELEMENT ACROSS THE WIDTH OF SAID HEATER ELEMENT, MEANS FOR CONNECTING SAID HEADER ELEMENTS TO A SOURCE OF ELECTRICAL ENERGY, AND A WAFER TYPE TEMPERATURE SENSING ELEMENT BONDED TO THE SURFACE OF SAID HEATER ELEMENT FACING SAID BODY MEMBER SO AS TO DETECT WITH A MINIMUM OF LAG THE TEMPERATURE OF SAID HEATER ELEMENT.
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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) | 1966-12-02 | 1967-06-03 | 1967-12-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-12-02 | 1971-06-03 | 1971-12-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-12-02 | 1975-06-03 | 1975-12-03 | $7700.00 | Window Closed / Lapsed |