US3334005A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat sealing apparatus for making contoured seams
Assignee: Individual
•
Filing: 1965-02-12
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Granted: 1967-08-01
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Expires: 1985-02-12
Abstract
No abstract record available.
Inventors
- 👤 Fener Alfred
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:52
CPC Classifications
B; B29; B29C; B29C65/00; B29C65/02; B29C65/18; B29C65/22; B29C65/221; B29C65/222; B29C65/228; B29C65/38; B29C66/00; B29C66/01; B29C66/05; B29C66/10; B29C66/11; B29C66/112; B29C66/1122; B29C66/40; B29C66/41; B29C66/43; B29C66/70; B29C66/73; B29C66/739; B29C66/7392; B29C66/73921; B29C66/80; B29C66/81; B29C66/812; B29C66/8126; B29C66/81262; B29C66/81263; B29C66/818; B29C66/8187; B29C66/81871; B29C65/229; B29C66/8122
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
141 words
IN A HEAT SEALING APPARATUS OF THE THERMAL IMPULSE TYPE, COMPRISING, IN COMBINATION, SEALING AND PRESSURE BARS, POSITIONED OPPOSITE EACH OTHER AND MOUNTED FOR RELATIVE MOVEMENT TOWARDS AND AWAY FROM EACH OTHER, ADAPTED TO COOPERATE ON LAYERS OF THERMOPLASTIC FILM WHEN INTERPOSED BETWEEN SAID BARS, MEANS FOR RELATIVELY MOVING SAID BARS; SAID SEALING BAR INCLUDING A HEATCONDUCTIVE METAL BASE, A BENT SEALING WIRE CARRIED ON A SURFACE OF SAID BASE OPPOSITE SAID PRESSURE BAR; SAID SEALING WIRE LYING PARALLEL TO SAID SURFACE AND ADAPTED TO BE HEATED BY PASSING A PULSE OF CURRENT THERETHROUGH AND AT LEAST ONE METAL SPIKE SECURED TO AND EXTENDING FROM SAID WIRE INTO A HOLD IN SAID BASE; SAID WIRE AND SPIKE BEING ELECTRICALLY INSULATED FROM SAID BASE AND A FIRST MEANS TO SUPPLY HEAT TO SAID SPIKE WHILE SAID WIRE IS BEING HEATED AND UNHEATED.
Claim 2
Dependent Claim
141 words
IN A HEAT SEALING APPARATUS OF THE THERMAL IMPULSE TYPE, COMPRISING, IN COMBINATION, SEALING AND PRESSURE BARS, POSITIONED OPPOSITE EACH OTHER AND MOUNTED FOR RELATIVE MOVEMENT TOWARDS AND AWAY FROM EACH OTHER, ADAPTED TO COOPERATE ON LAYERS OF THERMOPLASTIC FILM WHEN INTERPOSED BETWEEN SAID BARS, MEANS FOR RELATIVELY MOVING SAID BARS; SAID SEALING BAR INCLUDING A HEATCONDUCTIVE METAL BASE, A BENT SEALING WIRE CARRIED ON A SURFACE OF SAID BASE OPPOSITE SAID PRESSURE BAR; SAID SEALING WIRE LYING PARALLEL TO SAID SURFACE AND ADAPTED TO BE HEATED BY PASSING A PULSE OF CURRENT THERETHROUGH AND AT LEAST ONE METAL SPIKE SECURED TO AND EXTENDING FROM SAID WIRE INTO A HOLD IN SAID BASE; SAID WIRE AND SPIKE BEING ELECTRICALLY INSULATED FROM SAID BASE AND A FIRST MEANS TO SUPPLY HEAT TO SAID SPIKE WHILE SAID WIRE IS BEING HEATED AND UNHEATED.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-07-31 | 1971-01-30 | 1971-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-31 | 1975-01-30 | 1975-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-31 | 1979-01-30 | 1979-08-01 | $7700.00 | Window Closed / Lapsed |