US3260088A
Expired / Lapsed
US
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Apparatus for corrugating metal tubing
Assignee: Raymond International Inc
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Filing: 1963-09-20
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Granted: 1966-07-12
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Expires: 1983-09-20
Abstract
No abstract record available.
Inventors
- 👤 Werner K Gruetter
- 👤 George J Gendron
- 👤 Harold M Mccall
- 👤 Holland Henry A Nelson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 03:22
CPC Classifications
B; B21; B21D; B21D15/00; B21D15/04
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
118 words
APPARATUS FOR CORRUGATING METAL TUBING, COMPRISING IN COMBINATION: A MANDREL ONTO WHICH THE METAL TUBING TO BE CORRUGATED IS ADAPTED TO BE TELESCOPED AND TO BE CORRUGATED AS THE TUBING IS ROTATED AND ADVANCED ALONG THE MANDREL: COOPERATING CORRUGATING MEANS FOR ROTATABLY ENGAGING THE TUBING INTERNALLY AND EXTERNALLY AT ONE SIDE OF THE MANDREL; COOPERATING SUPPORTING MEANS FOR ROTATABLY ENGAGING THE TUBING INTERNALLY AND EXTERNALLY AT THE OPPOSITE SIDE OF THE MANDREL FOR RESISTING FORCES REACTING AGAINST THE MANDREL AT THE CORRUGATING MEANS AND WHICH WOULD OTHERWISE TEND TO DEFLECT THE MANDREL; AND POWER DRIVEN MEANS FOR ROTATING THE EXTERNAL CORRUGATING MEANS AND THEREBY ALSO APPLYING COMPONENTS OF FORCE TO THE TUBING FOR ROTATING AND ADVANCING THE SAME.
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) | 1969-07-11 | 1970-01-10 | 1970-07-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-11 | 1974-01-10 | 1974-07-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-11 | 1978-01-10 | 1978-07-12 | $7700.00 | Window Closed / Lapsed |