US3276107A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making a traveling wave tube helix mounting
Assignee: TDK Micronas GmbH
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Filing: 1964-07-07
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Granted: 1966-10-04
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Expires: 1984-07-07
Abstract
No abstract record available.
Inventors
- 👤 Milner W Wallace
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 09:54
CPC Classifications
H; H01; H01J; H01J23/00; H01J23/16; H01J23/24; H01J23/26; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/4981
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
132 words
A METHOD FOR ASSEMBLING A SLOW WAVE HELIX STRUCTURE WITHIN A TRAVELING WAVE TUBE METAL ENVELOPE HAVING EQUALLY SPACED LONGITUDINAL GROOVES FORMED ALONG THE INNER PERIPHERY THEREOF COMPRISING: MOUNTING A RESILIENT HELIX ON A SHAFT; MOUNTING AND SECURING A PLURALITY OF EQUALLY SPACED LONGITUDINAL DIELECTRIC RODS AROUND SAID HELIX; ROTATING ONE END OF SAID HELIX WHILE MAINTAINING THE OTHER END IN A FIXED POSITION TO TIGHTEN SAID HELIX FROM A LARGER TO SMALLER DIAMETER ABOUT SAID SHAFT; SECURING SAID ONE END TO HOLD SAID HELIX IN SAID SMALLER DIAMETER POSITION; INSERTING SAID HELIX AND RODS ON SAID SHAFT INTO SAID TUBE ENVELOPE WITH SAID RODS IN ALIGNMENT WITH SAID GROOVES; RELEASING SAID HELIX TO EXPAND TO SAID LARGER DIAMETER AND FORCE SAID RODS INTO ENGAGEMENT WITH SAID GROOVES; AND REMOVING SAID SHAFT.
Claim 2
Independent Claim
132 words
A METHOD FOR ASSEMBLING A SLOW WAVE HELIX STRUCTURE WITHIN A TRAVELING WAVE TUBE METAL ENVELOPE HAVING EQUALLY SPACED LONGITUDINAL GROOVES FORMED ALONG THE INNER PERIPHERY THEREOF COMPRISING: MOUNTING A RESILIENT HELIX ON A SHAFT; MOUNTING AND SECURING A PLURALITY OF EQUALLY SPACED LONGITUDINAL DIELECTRIC RODS AROUND SAID HELIX; ROTATING ONE END OF SAID HELIX WHILE MAINTAINING THE OTHER END IN A FIXED POSITION TO TIGHTEN SAID HELIX FROM A LARGER TO SMALLER DIAMETER ABOUT SAID SHAFT; SECURING SAID ONE END TO HOLD SAID HELIX IN SAID SMALLER DIAMETER POSITION; INSERTING SAID HELIX AND RODS ON SAID SHAFT INTO SAID TUBE ENVELOPE WITH SAID RODS IN ALIGNMENT WITH SAID GROOVES; RELEASING SAID HELIX TO EXPAND TO SAID LARGER DIAMETER AND FORCE SAID RODS INTO ENGAGEMENT WITH SAID GROOVES; AND REMOVING SAID SHAFT.
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) | 1969-10-03 | 1970-04-04 | 1970-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-03 | 1974-04-04 | 1974-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-03 | 1978-04-04 | 1978-10-04 | $7700.00 | Window Closed / Lapsed |