US2604830A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of winding composite tubular articles
Assignee: Primerica Inc
•
Filing: 1948-06-11
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Granted: 1952-07-29
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Expires: 1968-06-11
Abstract
No abstract record available.
Inventors
- 👤 Carl W Heinle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 14:23
CPC Classifications
B; B31; B31C; B31C3/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
103 words
A METHOD OF MAKING SPIRALLY WOUND MULTIPLY COMPOSITE TUBES HAVING AN INNER PLY OF METAL FOIL, COMPRISING APPLYING A VOLATILE ORGANIC LIQUID LUBRICANT TO THE SURFACE OF THE INNER PLY FACING THE MANDREL TO REDUCE FRICTION BETWEEN SAID INNER PLY AND SAID MANDREL, SAID VOLATILE LUBRICANT BEING SELECTED FROM THE CLASS CONSISTING OF MONOHYDRIC ALKANOLS HAVING FROM 2 TO 5 CARBON ATOMS, FEEDING ADHESIVE COATED FIBRE STRIPS OVER THE OUTER SURFACE OF SAID FOIL, ROTATING AND ADVANCING THE LAMINATED STRIP ALONG THE MANDREL AND APPLYING PRESSURE DURING THE ROTATIONS TO ADHESIVELY BOND THE SEVERAL PLIES INTO A UNITARY VAPOR AND LIQUID PROOF TUBE.
Claim 2
Independent Claim
103 words
A METHOD OF MAKING SPIRALLY WOUND MULTIPLY COMPOSITE TUBES HAVING AN INNER PLY OF METAL FOIL, COMPRISING APPLYING A VOLATILE ORGANIC LIQUID LUBRICANT TO THE SURFACE OF THE INNER PLY FACING THE MANDREL TO REDUCE FRICTION BETWEEN SAID INNER PLY AND SAID MANDREL, SAID VOLATILE LUBRICANT BEING SELECTED FROM THE CLASS CONSISTING OF MONOHYDRIC ALKANOLS HAVING FROM 2 TO 5 CARBON ATOMS, FEEDING ADHESIVE COATED FIBRE STRIPS OVER THE OUTER SURFACE OF SAID FOIL, ROTATING AND ADVANCING THE LAMINATED STRIP ALONG THE MANDREL AND APPLYING PRESSURE DURING THE ROTATIONS TO ADHESIVELY BOND THE SEVERAL PLIES INTO A UNITARY VAPOR AND LIQUID PROOF TUBE.
References Cited (Backward Citations)
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Cited
US1041484A
Cited
US1610458A
Cited
US1945584A
Cited
US1948194A
Cited
US2130355A
Cited
US2335908A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-07-29 | 1956-01-28 | 1956-07-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-07-29 | 1960-01-28 | 1960-07-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-07-29 | 1964-01-28 | 1964-07-29 | $7700.00 | Window Closed / Lapsed |