US3109050A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electron tube shield
Assignee: North American Aviation Corp
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Filing: 1960-12-12
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Granted: 1963-10-29
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Expires: 1980-12-12
Abstract
No abstract record available.
Inventors
- 👤 Rudolph F Lusic
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 23:52
CPC Classifications
H; H01; H01J; H01J5/00; H01J5/02; H01J5/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
124 words
A SHIELD FOR USE WITH AN ELECTRON TUBE COMPRISING AN OUTER CYLINDRICAL SHIELD MEMBER, AN INNER SHIELD MEMBER CONCENTRICALLY POSITIONED WITHIN SAID OUTER SHIELD MEMBER, SAID INNER SHIELD MEMBER BEING ADAPTED TO BE WRAPPED AROUND THE TUBE WITH THE ENDS THEREOF SUBSTANTIALLY PARALLEL TO THE AXIS OF REVOLUTION OF THE CYLINDER FORMED THEREBY BEING FREE AND OVERLAPPING EACH OTHER SAID INNER MEMBER HAVING A PLURALITY OF UNIFORM PROJECTIONS ON THE INNER WALL THEREOF, SAID PROJECTIONS ADAPTED TO BE CONTIGUOUS WITH THE TUBE ENVELOPE, AND RESILIENT RING MEANS BETWEEN SAID INNER AND OUTER MEMBERS AND CONCENTRIC WITH SAID INNER AND OUTER MEMBERS FOR URGING SAID INNER MEMBER RADIALLY INWARDLY OF SAID OUTER MEMBER, SAID RING FORMING AN AIR-TIGHT SEAL BETWEEN SAID INNER AND OUTER MEMBERS.
Claim 2
Dependent Claim
124 words
A SHIELD FOR USE WITH AN ELECTRON TUBE COMPRISING AN OUTER CYLINDRICAL SHIELD MEMBER, AN INNER SHIELD MEMBER CONCENTRICALLY POSITIONED WITHIN SAID OUTER SHIELD MEMBER, SAID INNER SHIELD MEMBER BEING ADAPTED TO BE WRAPPED AROUND THE TUBE WITH THE ENDS THEREOF SUBSTANTIALLY PARALLEL TO THE AXIS OF REVOLUTION OF THE CYLINDER FORMED THEREBY BEING FREE AND OVERLAPPING EACH OTHER SAID INNER MEMBER HAVING A PLURALITY OF UNIFORM PROJECTIONS ON THE INNER WALL THEREOF, SAID PROJECTIONS ADAPTED TO BE CONTIGUOUS WITH THE TUBE ENVELOPE, AND RESILIENT RING MEANS BETWEEN SAID INNER AND OUTER MEMBERS AND CONCENTRIC WITH SAID INNER AND OUTER MEMBERS FOR URGING SAID INNER MEMBER RADIALLY INWARDLY OF SAID OUTER MEMBER, SAID RING FORMING AN AIR-TIGHT SEAL BETWEEN SAID INNER AND OUTER MEMBERS.
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) | 1966-10-28 | 1967-04-29 | 1967-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-10-28 | 1971-04-29 | 1971-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-10-28 | 1975-04-29 | 1975-10-29 | $7700.00 | Window Closed / Lapsed |