Patent US2960425A successfully refreshed from Google Patents.
US2960425A
Expired / Lapsed
US
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Method of integrally uniting thermoplastic sheets with extruded plastic material
Assignee: OI Glass Inc
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Filing: 1955-09-02
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Granted: 1960-11-15
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Expires: 1975-09-02
Abstract
No abstract record available.
Inventors
- 👤 Orville B Sherman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:24
CPC Classifications
B; B29; B29C; B29C66/00; B29C66/01; B29C66/05; B29C66/10; B29C66/11; B29C66/114; B29C66/1142; B29C63/00; B29C63/02; B29C63/04; B29C63/08; B29C63/10; B29C63/105; B29C63/26; B29C63/30; B29C63/32; B29C65/00; B29C65/02; B29C65/40; B29C65/42; B29C66/112; B29C66/1122; B29C66/40; B29C66/41; B29C66/43; B29C66/50; B29C66/61; B29C66/65; B29C66/652; B29C66/80; B29C66/83; B29C66/834; B29C66/8341; B29C66/83411; B29C66/836; B29C53/00; B29C53/56; B29C53/58; B29C66/432; B29C66/4322; B29C66/4329; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1052; Y10T156/1062; Y10T156/1066
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
135 words
THE METHOD WHICH COMPRISES BEVELLING THE EDGE SURFACES OF PIECES OF THERMOPLASTIC MATERIAL IN SHEET FORM, BRINGING THE BEVELLED EDGES TOGETHER AND THEREBY FORMING A GROOVE BETWEEN THE EDGE SURFACES OF SAID PIECES, DIRECTING A HEATING MEDIUM AGAINST SAID PIECES AT A LOCALIZED AREA ALONG SAID GROOVE, ADVANCING THE HEATING MEDIUM ALONG THE GROVE AND THEREBY PROGRESSIVELY SOFTENING THE MATERIAL ALONG THE GROOVE, EXTRUDING INTO THE OPEN AIR AND DIRECTLY INTO SAID GROOVE PLASTIC MATERIAL FROM AN ESTRUDER IN THE FORM OF A STRIP AND DEPOSITING THE STRIP PROGRESSIVELY ALONG SAID GROOVE AS SAID HEATING MEDIUM ADVANCES AND PRESSING THE STRIP INTO THE GROOVE BY PRESSURE TRANSMITTED FROM THE EXTRUDER TO THE ISSUING MATERIAL AND APPLIED PROGRESSIVELY ALONG THE SEAM DURING THE DEPOSIT OF SAID MATERIAL AND THEREBY WELDING THE EXTRUDED PLASTIC TO SAID PIECES.
Claim 2
Independent Claim
135 words
THE METHOD WHICH COMPRISES BEVELLING THE EDGE SURFACES OF PIECES OF THERMOPLASTIC MATERIAL IN SHEET FORM, BRINGING THE BEVELLED EDGES TOGETHER AND THEREBY FORMING A GROOVE BETWEEN THE EDGE SURFACES OF SAID PIECES, DIRECTING A HEATING MEDIUM AGAINST SAID PIECES AT A LOCALIZED AREA ALONG SAID GROOVE, ADVANCING THE HEATING MEDIUM ALONG THE GROVE AND THEREBY PROGRESSIVELY SOFTENING THE MATERIAL ALONG THE GROOVE, EXTRUDING INTO THE OPEN AIR AND DIRECTLY INTO SAID GROOVE PLASTIC MATERIAL FROM AN ESTRUDER IN THE FORM OF A STRIP AND DEPOSITING THE STRIP PROGRESSIVELY ALONG SAID GROOVE AS SAID HEATING MEDIUM ADVANCES AND PRESSING THE STRIP INTO THE GROOVE BY PRESSURE TRANSMITTED FROM THE EXTRUDER TO THE ISSUING MATERIAL AND APPLIED PROGRESSIVELY ALONG THE SEAM DURING THE DEPOSIT OF SAID MATERIAL AND THEREBY WELDING THE EXTRUDED PLASTIC TO SAID PIECES.
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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) | 1963-11-15 | 1964-05-16 | 1964-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-11-15 | 1968-05-16 | 1968-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-11-15 | 1972-05-16 | 1972-11-15 | $7700.00 | Window Closed / Lapsed |