Patent US3317993A successfully refreshed from Google Patents.
US3317993A
Expired / Lapsed
US
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Apparatus and method for making flexible conduits
Assignee: Teleflex Inc
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Filing: 1961-12-04
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Granted: 1967-05-09
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Expires: 1981-12-04
Abstract
No abstract record available.
Inventors
- 👤 Brouse William Henry Davenport
- 👤 Alvin A Cadwallader
- 👤 Donald R Pierce
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 15:25
CPC Classifications
B; B26; B26F; B26F1/00; B26F1/02; B21; B21C; B21C37/00; B21C37/06; B21C37/15; B21C37/22; B21C37/225; B29; B29C; B29C48/00; B29C48/03; B29C48/12; B29C48/15; B29C48/09; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49838; Y10T29/49885; Y10T29/4998; Y10T29/49982; Y10T29/49986; Y10T74/00; Y10T74/20; Y10T74/20396; Y10T74/20402; Y10T74/20456
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
119 words
THE METHOD OF CONTINUOUSLY FORMING FLEXIBLE CONDUIT COMPRISING THE STEPS OF CONTINUOUSLY PUNCHING HOLES IN A FLEXIBLE METAL STRIP MEMBER AT RELATIVELY CLOSELY SPACED INTERVALS THROUGHOUT THE LENGTH THEREOF SO AS TO LEAVE SOLID STRIP PORTIONS INTERMEDIATE ADJACENT OF SAID HOLES, NEXT ALTERNATELY OFFSETTING ADJACENT OF SAID SOLID STRIP PORTIONS TO FORM BRIDGE PORTIONS PROJECTING FROM OPPOSITE FACES OF SAID STRIP, HEAT TREATING SAID PUNCHED AND FORMED STRIP TO HARDEN THE SAME, QUENCHING THE HEAT TREATED STRIP, AGAIN HEAT TREATING THE STRIP TO TEMPER THE SAME, EXTRUDING A PLASTIC CASING ABOUT SAID PUNCHED AND FORMED STRIP IN SUCH A WAY THAT SAID CASING ASSUMES THE SAME GENERAL CONFIGURATION AS THE STRIP, AND COOLING SAID STRIP TO SET SAID PLASTIC.
Claim 2
Independent Claim
119 words
THE METHOD OF CONTINUOUSLY FORMING FLEXIBLE CONDUIT COMPRISING THE STEPS OF CONTINUOUSLY PUNCHING HOLES IN A FLEXIBLE METAL STRIP MEMBER AT RELATIVELY CLOSELY SPACED INTERVALS THROUGHOUT THE LENGTH THEREOF SO AS TO LEAVE SOLID STRIP PORTIONS INTERMEDIATE ADJACENT OF SAID HOLES, NEXT ALTERNATELY OFFSETTING ADJACENT OF SAID SOLID STRIP PORTIONS TO FORM BRIDGE PORTIONS PROJECTING FROM OPPOSITE FACES OF SAID STRIP, HEAT TREATING SAID PUNCHED AND FORMED STRIP TO HARDEN THE SAME, QUENCHING THE HEAT TREATED STRIP, AGAIN HEAT TREATING THE STRIP TO TEMPER THE SAME, EXTRUDING A PLASTIC CASING ABOUT SAID PUNCHED AND FORMED STRIP IN SUCH A WAY THAT SAID CASING ASSUMES THE SAME GENERAL CONFIGURATION AS THE STRIP, AND COOLING SAID STRIP TO SET SAID PLASTIC.
Claim 3
Independent Claim
80 words
AN APPARATUS FOR CONTINUOUSLY FORMING FLEXIBLE CONDUIT FROM A SOURCE OF FLEXIBLE STRIP STOCK COMPRISING MEANS FOR CONTINUOUSLY FEEDING SAID STRIP THROUGH SAID APPARATUS, A DEVICE INCLUDING MEANS FOR PUNCHING SPACED HOLES IN SAID STRIP AND MEANS FOR FORMING SAID STRIP BETWEEN SAID HOLES TO PROVIDE LONGITUDINALLY ALTERNATE BRIDGE PORTIONS PROJECTING FROM OPPOSITE FACES OF SAID STRIP, AND A SECOND DEVICE FORMING A PLASTIC CASING ABOUT SAID STRIP SO THAT SAID CASING EXTENDS WITHIN THE SPACE ADJACENT EACH BRIDGE PORTION.
Claim 4
Independent Claim
80 words
AN APPARATUS FOR CONTINUOUSLY FORMING FLEXIBLE CONDUIT FROM A SOURCE OF FLEXIBLE STRIP STOCK COMPRISING MEANS FOR CONTINUOUSLY FEEDING SAID STRIP THROUGH SAID APPARATUS, A DEVICE INCLUDING MEANS FOR PUNCHING SPACED HOLES IN SAID STRIP AND MEANS FOR FORMING SAID STRIP BETWEEN SAID HOLES TO PROVIDE LONGITUDINALLY ALTERNATE BRIDGE PORTIONS PROJECTING FROM OPPOSITE FACES OF SAID STRIP, AND A SECOND DEVICE FORMING A PLASTIC CASING ABOUT SAID STRIP SO THAT SAID CASING EXTENDS WITHIN THE SPACE ADJACENT EACH BRIDGE PORTION.
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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) | 1970-05-08 | 1970-11-07 | 1971-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-05-08 | 1974-11-07 | 1975-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-05-08 | 1978-11-07 | 1979-05-09 | $7700.00 | Window Closed / Lapsed |