US3313671A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tensioned strand type duct forming mechanism
Assignee: Individual
•
Filing: 1963-07-22
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Granted: 1967-04-11
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Expires: 1983-07-22
Abstract
No abstract record available.
Inventors
- 👤 Ritchie Glen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 15:45
CPC Classifications
B; B29; B29C; B29C53/00; B29C53/56; B29C53/58; B29C53/60
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
143 words
A DUCT FORMING MECHANISM COMPRISING: (A) A PAIR OF ROTARY STRAND SUPPORTING MEMBERS MOUNTED IN OPPOSED CO-AXIAL, AXIALLY SPACED RELATION, (B) A PLURALITY OF SPRING BIASED REELS ON ONE STRAND SUPPORTING MEMBER, (C) A PLURALITY OF RADIALLY ADJUSTABLE STRAND RETAINING ELEMENTS MOUNTED ON EACH STRAND SUPPORTING MEMBER, (D) A STRAND WOUND ON EACH REEL AND PASSED IN GUIDED RELATION THROUGH ONE STRAND RETAINING ELEMENT ON SAID ONE STRAND SUPPORTING MEMBER, (E) A BALL END ON THE FREE END OF EACH STRAND, (F) EACH STRAND RETAINING ELEMENT ON THE OTHER STRAND SUPPORTING MEMBER BEING FORMED TO RECEIVE AND RELEASABLY RETAIN ONE OF THE STRAND BALL ENDS, (G) MEANS FOR SIMULTANEOUSLY ROTATING BOTH STRAND SUPPORTING MEMBERS ABOUT THEIR COMMON AXIS WITH THE STRANDS EXTENDING BETWEEN THE STRAND SUPPORTING MEMBER WHILE APPLYING A LAYER OF DUCT FORMING MATERIAL ON THE FORM DEFINED BY THE STRANDS, AND
Claim 2
Dependent Claim
143 words
A DUCT FORMING MECHANISM COMPRISING: (A) A PAIR OF ROTARY STRAND SUPPORTING MEMBERS MOUNTED IN OPPOSED CO-AXIAL, AXIALLY SPACED RELATION, (B) A PLURALITY OF SPRING BIASED REELS ON ONE STRAND SUPPORTING MEMBER, (C) A PLURALITY OF RADIALLY ADJUSTABLE STRAND RETAINING ELEMENTS MOUNTED ON EACH STRAND SUPPORTING MEMBER, (D) A STRAND WOUND ON EACH REEL AND PASSED IN GUIDED RELATION THROUGH ONE STRAND RETAINING ELEMENT ON SAID ONE STRAND SUPPORTING MEMBER, (E) A BALL END ON THE FREE END OF EACH STRAND, (F) EACH STRAND RETAINING ELEMENT ON THE OTHER STRAND SUPPORTING MEMBER BEING FORMED TO RECEIVE AND RELEASABLY RETAIN ONE OF THE STRAND BALL ENDS, (G) MEANS FOR SIMULTANEOUSLY ROTATING BOTH STRAND SUPPORTING MEMBERS ABOUT THEIR COMMON AXIS WITH THE STRANDS EXTENDING BETWEEN THE STRAND SUPPORTING MEMBER WHILE APPLYING A LAYER OF DUCT FORMING MATERIAL ON THE FORM DEFINED BY THE STRANDS, AND
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) | 1970-04-10 | 1970-10-10 | 1971-04-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-04-10 | 1974-10-10 | 1975-04-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-04-10 | 1978-10-10 | 1979-04-11 | $7700.00 | Window Closed / Lapsed |