US2617752A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for dielectric r-f heating of nonconducting materials in particular of thermoplastic materials, wood, paper, etc.
Assignee: International Standard Electric Corp
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Filing: 1950-11-25
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Granted: 1952-11-11
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Expires: 1970-11-25
Abstract
No abstract record available.
Inventors
- 👤 Hauteville Hans T Von
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 00:29
CPC Classifications
B; B29; B29C; B29C66/00; B29C66/70; B29C66/74; B29C65/00; B29C65/02; B29C65/04; B29C66/01; B29C66/02; B29C66/024; B29C66/0242; B29C66/0244; B29C66/03; B29C66/034; B29C66/0342; B29C66/73; B29C66/735; B29C66/7352; B29C66/73521; B29C65/10; B29C66/748; B29C66/7486; B29C66/7487; B29C66/80; B29C66/81; B29C66/812; B29C66/8126; B29C66/81261; B29K; B29K2101/00; B29K2101/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
104 words
A METHOD OF BONDING A PLURALITY OF THERMOPLASTIC ELEMENTS CONSISTING OF PLACING SAID ELEMENTS BETWEEN A PAIR OF ELECTRODES, COOLING SAID ELEMENTS AND SAID ELECTRODES SUBSTANTIALLY BELOW AMBIENT TEMPERATURE, RAISING THE SURFACE TEMPERATURE OF PORTIONS OF SAID ELEMENTS TO BE JOINED, BRINGING THE HEATED SURFACES OF SAID ELEMENTS TO BE JOINED INTO ENGAGEMENT, AND APPLYING HIGH FREQUENCY ELECTRICAL ENERGY TO SAID ELECTRODES WHEREBY RAPIDLY TO ADDITIONALLY RAISE THE SURFACE TEMPERATURE OF SAID ELEMENTS SUFFICIENTLY TO RENDER THE ELEMENT MATERIAL THERMO-PLASTIC AND EFFECT A BOND BETWEEN SAID ELEMENTS WITHOUT APPRECIABLY RAISING THE TEMPERATURE OF REMAINING PORTIONS OF SAID ELEMENTS OR THE TEMPERATURE OF SAID ELECTRODES.
Claim 2
Independent Claim
104 words
A METHOD OF BONDING A PLURALITY OF THERMOPLASTIC ELEMENTS CONSISTING OF PLACING SAID ELEMENTS BETWEEN A PAIR OF ELECTRODES, COOLING SAID ELEMENTS AND SAID ELECTRODES SUBSTANTIALLY BELOW AMBIENT TEMPERATURE, RAISING THE SURFACE TEMPERATURE OF PORTIONS OF SAID ELEMENTS TO BE JOINED, BRINGING THE HEATED SURFACES OF SAID ELEMENTS TO BE JOINED INTO ENGAGEMENT, AND APPLYING HIGH FREQUENCY ELECTRICAL ENERGY TO SAID ELECTRODES WHEREBY RAPIDLY TO ADDITIONALLY RAISE THE SURFACE TEMPERATURE OF SAID ELEMENTS SUFFICIENTLY TO RENDER THE ELEMENT MATERIAL THERMO-PLASTIC AND EFFECT A BOND BETWEEN SAID ELEMENTS WITHOUT APPRECIABLY RAISING THE TEMPERATURE OF REMAINING PORTIONS OF SAID ELEMENTS OR THE TEMPERATURE OF SAID ELECTRODES.
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) | 1955-11-11 | 1956-05-12 | 1956-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-11-11 | 1960-05-12 | 1960-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-11-11 | 1964-05-12 | 1964-11-11 | $7700.00 | Window Closed / Lapsed |