US3185182A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reinforced flexible conduit
Assignee: Day International Corp
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Filing: 1964-11-16
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Granted: 1965-05-25
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Expires: 1984-11-16
Abstract
No abstract record available.
Inventors
- 👤 Jr Russell B Waddell
- 👤 Carroll H Osborn
- 👤 Medford Richard Dale
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 19:49
CPC Classifications
F; F16; F16L; F16L11/00; F16L11/04; F16L11/11; F16L11/115
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
43 words
A REINFORCED FLEXIBLE CORRUGATED CONDUIT COMPRISING A HELICAL REINFORCEMENT OF PLASTIC COATED WIRE HAVING AXIALLY SPACED COILS, AN ELASTOMERICA TUBE BONDED TO SAID COILS, A LONGITUDINALLY STRETCHABLE BUT UNSTRESSED TUBULAR FABRIC MEMBER ENVELOPING SAID TUBE, AND A SECOND ELASTOMERIC TUBE ENVELOPING SAID MEMBER.
Claim 2
Dependent Claim
43 words
A REINFORCED FLEXIBLE CORRUGATED CONDUIT COMPRISING A HELICAL REINFORCEMENT OF PLASTIC COATED WIRE HAVING AXIALLY SPACED COILS, AN ELASTOMERICA TUBE BONDED TO SAID COILS, A LONGITUDINALLY STRETCHABLE BUT UNSTRESSED TUBULAR FABRIC MEMBER ENVELOPING SAID TUBE, AND A SECOND ELASTOMERIC TUBE ENVELOPING SAID MEMBER.
Claim 3
Independent Claim
83 words
A METHOD FOR THE MANUFACTURE OF REINFORCED FLEXIBLE CORRUGATED CONDUITS COMPRISING THE STEPS OF FORMING A HELICAL REINFORCEMENT, SUCCESSIVELY PLACING A FIRST TUBE OF ELASTOMERIC MATERIAL, A TUBULAR REINFORCING MEMBER, AND A SECOND TUBE OF ELASTOMERIC MATERIAL AROUND SAID REINFORCEMENT, WITH THE ENDS OF SAID TUBES AND SAID MEMBER IN ALIGNMENT WITH EACH OTHER AND EXTENDING BEYOND THE ENDS OF SAID REINFORCEMENT, AND APPLYING INTERNAL PRESSURE TO THE RESULTING ASSEMBLY TO ALIGN THE ENDS OF SAID TUBES AND SAID MEMBER WITH SAID REINFORCEMENT.
Claim 4
Independent Claim
83 words
A METHOD FOR THE MANUFACTURE OF REINFORCED FLEXIBLE CORRUGATED CONDUITS COMPRISING THE STEPS OF FORMING A HELICAL REINFORCEMENT, SUCCESSIVELY PLACING A FIRST TUBE OF ELASTOMERIC MATERIAL, A TUBULAR REINFORCING MEMBER, AND A SECOND TUBE OF ELASTOMERIC MATERIAL AROUND SAID REINFORCEMENT, WITH THE ENDS OF SAID TUBES AND SAID MEMBER IN ALIGNMENT WITH EACH OTHER AND EXTENDING BEYOND THE ENDS OF SAID REINFORCEMENT, AND APPLYING INTERNAL PRESSURE TO THE RESULTING ASSEMBLY TO ALIGN THE ENDS OF SAID TUBES AND SAID MEMBER WITH SAID REINFORCEMENT.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-05-24 | 1968-11-23 | 1969-05-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-05-24 | 1972-11-23 | 1973-05-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-05-24 | 1976-11-23 | 1977-05-25 | $7700.00 | Window Closed / Lapsed |