Patent US6804659B1 successfully refreshed from Google Patents.
US3178601A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Beam tube
Assignee: Radiation Dynamics Inc
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Filing: 1961-07-18
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Granted: 1965-04-13
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Expires: 1981-07-18
Abstract
No abstract record available.
Inventors
- 👤 Marshall R Cleland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:11
CPC Classifications
H; H01; H01J; H01J5/00; H01J5/02; H01J5/06; H01J27/00; H01J27/02; H05; H05H; H05H5/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
181 words
A HIGH-VACUUM, HIGH-VOLTAGE ELECTRON AND ION BEAM ACCELERATION TUBE COMPRISING A PLURALITY OF CENTRALLY APERTURED THIN METALLIC DISCS, A PLURALITY OF HOLLOW GLASS CYLINDERS HAVING APPROXIMATELY THE SAME TEMPERATURE COEFFICIENT OF EXPANSION AS SAID DISCS, SAID DISCS AND CYLINDERS BEING ARRANGED IN INTERLEAVED AND ABUTTING RELATIONSHIP ALONG A COMMON AXIS TO PROVIDE A COLUMNAR STRUCTURE, SAID METALLIC DISC BEING UNDERCUT ALONG BOTH SURFACES OVER AN AREA DEFINED BY A RADIUS GREATER THAN THE INTERNAL DIAMETER AND LESS THAN THE EXTERNAL DIAMETER OF SAID GLASS CYLINDERS, SAID DISC AND CYLINDERS BEING BONDED TOGETHER BY A ROOM-TEMPERATURE-CURING EPOXY RESIN WHICH EXTENDS ACROSS EACH INTERFACE DEFINED BY THE ABUTTING SURFACES OF SAID DISCS AND CYLINDERS, SAID INTERFACES TERMINATING AT THE UNDERCUT AREA OF SAID DISCS, SAID ABUTTING SURFACES BEING DIMENSIONED AND FINISHED TO AS TO SUPPORT SPREAD OF THE UNCURED EOPXY RESIN BY CAPILLARY ACTION ACROSS THE ENTIRE INTERFACE BETWEEN SAID ABUTTING SURFACES, A PAIR OF END PLATES CONTACTING OPPOSITE ENDS OF SAID COLUMNAR STRUCTURE, CINCH RODS EXTENDING BETWEEN SAID END PLATES, AND MEANS FOR TENSIONING SAID CINCH RODS TO COMPRESS SAID COLUMNAR STRUCTURE.
Claim 2
Dependent Claim
181 words
A HIGH-VACUUM, HIGH-VOLTAGE ELECTRON AND ION BEAM ACCELERATION TUBE COMPRISING A PLURALITY OF CENTRALLY APERTURED THIN METALLIC DISCS, A PLURALITY OF HOLLOW GLASS CYLINDERS HAVING APPROXIMATELY THE SAME TEMPERATURE COEFFICIENT OF EXPANSION AS SAID DISCS, SAID DISCS AND CYLINDERS BEING ARRANGED IN INTERLEAVED AND ABUTTING RELATIONSHIP ALONG A COMMON AXIS TO PROVIDE A COLUMNAR STRUCTURE, SAID METALLIC DISC BEING UNDERCUT ALONG BOTH SURFACES OVER AN AREA DEFINED BY A RADIUS GREATER THAN THE INTERNAL DIAMETER AND LESS THAN THE EXTERNAL DIAMETER OF SAID GLASS CYLINDERS, SAID DISC AND CYLINDERS BEING BONDED TOGETHER BY A ROOM-TEMPERATURE-CURING EPOXY RESIN WHICH EXTENDS ACROSS EACH INTERFACE DEFINED BY THE ABUTTING SURFACES OF SAID DISCS AND CYLINDERS, SAID INTERFACES TERMINATING AT THE UNDERCUT AREA OF SAID DISCS, SAID ABUTTING SURFACES BEING DIMENSIONED AND FINISHED TO AS TO SUPPORT SPREAD OF THE UNCURED EOPXY RESIN BY CAPILLARY ACTION ACROSS THE ENTIRE INTERFACE BETWEEN SAID ABUTTING SURFACES, A PAIR OF END PLATES CONTACTING OPPOSITE ENDS OF SAID COLUMNAR STRUCTURE, CINCH RODS EXTENDING BETWEEN SAID END PLATES, AND MEANS FOR TENSIONING SAID CINCH RODS TO COMPRESS SAID COLUMNAR STRUCTURE.
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) | 1968-04-12 | 1968-10-12 | 1969-04-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-04-12 | 1972-10-12 | 1973-04-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-04-12 | 1976-10-12 | 1977-04-13 | $7700.00 | Window Closed / Lapsed |