US3291007A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Anti-friction former device
Assignee: Graphic Packaging International LLC
•
Filing: 1964-02-28
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Granted: 1966-12-13
•
Expires: 1984-02-28
Abstract
No abstract record available.
Inventors
- 👤 Mcdowell Robert Cecil
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 05:28
CPC Classifications
B; B29; B29C; B29C53/00; B29C53/02; B29C53/10; B29C53/36; B29C53/38; B29C53/48; B29C53/50; B31; B31B; B31B70/00; B31B2155/00; B31B2155/001; B31B2155/0012; B31B2160/00; B31B2160/10; B31B70/26; B31B70/262; B31B70/266; B31B70/36
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
108 words
A MULTI-WALL TUBE FORMER FOR SIMULTANEOUSLY FOLDING AT LEAST TWO PLIES OF FLAT, FLEXIBLE, COEXTENSIVE SHEET MATERIAL INTO TUBULAR BODIES INCLUDING A SUPPORT FRAME, A PLURALITY OF HEEL ROLLERS ROTATABLY MOUNTED ADJACENT ONE END OF SAID FRAME, CLEARANCE GUIDE ROLLERS MOUNTED ADJACENT SAID HEEL ROLLERS TO PREVENT FRICTIONAL ENGAGEMENT OF SHEET MATERIAL WITH THE OUTER RIMS OF SAID HEEL ROLLERS, A PLURALITY OF FORMER DISCS POSITIONED DOWNSTREAM OF SAID HEEL ROLLERS, EACH OF SAID FORMER DISCS HAVING A CONVEX WORKING SURFACE, AND MEANS MOUNTING SAID FORMER DISCS AT AN ANGLE INCLINED TO THE HORIZONTAL SO THAT ONLY THE OUTER PORTION OF THE CONVEX SURFACE OF EACH OF SAID
Claim 2
Dependent Claim
108 words
A MULTI-WALL TUBE FORMER FOR SIMULTANEOUSLY FOLDING AT LEAST TWO PLIES OF FLAT, FLEXIBLE, COEXTENSIVE SHEET MATERIAL INTO TUBULAR BODIES INCLUDING A SUPPORT FRAME, A PLURALITY OF HEEL ROLLERS ROTATABLY MOUNTED ADJACENT ONE END OF SAID FRAME, CLEARANCE GUIDE ROLLERS MOUNTED ADJACENT SAID HEEL ROLLERS TO PREVENT FRICTIONAL ENGAGEMENT OF SHEET MATERIAL WITH THE OUTER RIMS OF SAID HEEL ROLLERS, A PLURALITY OF FORMER DISCS POSITIONED DOWNSTREAM OF SAID HEEL ROLLERS, EACH OF SAID FORMER DISCS HAVING A CONVEX WORKING SURFACE, AND MEANS MOUNTING SAID FORMER DISCS AT AN ANGLE INCLINED TO THE HORIZONTAL SO THAT ONLY THE OUTER PORTION OF THE CONVEX SURFACE OF EACH OF SAID
References Cited (Backward Citations)
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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) | 1969-12-12 | 1970-06-13 | 1970-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-12 | 1974-06-13 | 1974-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-12 | 1978-06-13 | 1978-12-13 | $7700.00 | Window Closed / Lapsed |