US2964444A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making a laminated metal airscrew blade
Assignee: Bell Aerospace Corp
•
Filing: 1957-02-19
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Granted: 1960-12-13
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Expires: 1977-02-19
Abstract
No abstract record available.
Inventors
- 👤 Robert R Lynn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 17:44
CPC Classifications
B; B64; B64C; B64C11/00; B64C11/16; B64C11/20; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1028
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
78 words
THE METHOD OF FABRICATING AN AIRSCREW BLADE COMPRISING AN ASSEMBLY OF METAL PARTS ADHESIVELY BONDED TOGETHER, SAID METHOD INCLUDING THE STEPS OF PREFORMING SAID METAL PARTS, POSITIONALLY ASSEMBLING SAID PARTS WHILE INTERPOSING BETWEEN AT LEAST TWO OF SAID PARTS A SINGLE SELF-SUSTAINING SEMI-POLYMERIZED PLASTIC ADHESIVE CONTINUOUS SHEET OF MATERIAL HAVING EMBEDDED INTERGRALLY THEREWITHIN AN ELECTRICAL RESISTANCE HEATING ELEMENT, AND THEN HEATING AND PRESSING SAID METAL PARTS TOGETHER THEREBY CAUSING SAID ADHESIVE TO FINALLY POLMERIZE INTO METAL BONDING FORM.
Claim 2
Independent Claim
78 words
THE METHOD OF FABRICATING AN AIRSCREW BLADE COMPRISING AN ASSEMBLY OF METAL PARTS ADHESIVELY BONDED TOGETHER, SAID METHOD INCLUDING THE STEPS OF PREFORMING SAID METAL PARTS, POSITIONALLY ASSEMBLING SAID PARTS WHILE INTERPOSING BETWEEN AT LEAST TWO OF SAID PARTS A SINGLE SELF-SUSTAINING SEMI-POLYMERIZED PLASTIC ADHESIVE CONTINUOUS SHEET OF MATERIAL HAVING EMBEDDED INTERGRALLY THEREWITHIN AN ELECTRICAL RESISTANCE HEATING ELEMENT, AND THEN HEATING AND PRESSING SAID METAL PARTS TOGETHER THEREBY CAUSING SAID ADHESIVE TO FINALLY POLMERIZE INTO METAL BONDING FORM.
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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) | 1963-12-13 | 1964-06-13 | 1964-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-12-13 | 1968-06-13 | 1968-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-12-13 | 1972-06-13 | 1972-12-13 | $7700.00 | Window Closed / Lapsed |