US3331670A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making multichannelled electron multiplier component
Assignee: American Optical Corp
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Filing: 1963-09-09
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Granted: 1967-07-18
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Expires: 1983-09-09
Abstract
No abstract record available.
Inventors
- 👤 Henry B Cole
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:09
CPC Classifications
C; C03; C03B; C03B23/00; C03B23/20; C03B23/207; C03B37/00; C03B37/10; C03B37/14; C03B37/15; H; H01; H01J; H01J43/00; H01J43/04; H01J43/06; H01J43/18; H01J43/24
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
124 words
THE METHOD OF MAKING A MULTICHANNELLED ELECTRON MULTIPLIER COMPONENT COMPRISING THE STEPS OF: SEALING WITHIN EACH OF A MULTIPLICITY OF ELONGATED TUBES HAVING GLASS WALLS FORMED AT LEAST IN PART OF SECONDARY ELECTRON EMISSIVE MATERIAL A MEDIUM WHICH IS EXPANSIBLE ON BEING HEATED; PLACING SAID TUBES UNDER RIGID CONSTRAINT IN PREARRANGED TIGHTLY BUNDLED SIDE-BY-SIDE PARALLEL RELATIONSHIP WITH EACH OTHER, THERE BEING UNDESIRED INTERSTICES BETWEEN SAID TUBES; AND HEATING SAID CONSTRAINED TUBES TO A TEMPERATURE SUFFICIENT TO SOFTEN THE WALLS THEREOF AND FUSE ONE TO ANOTHER WHEREBY, UNDER THE INFLUENCE OF SAID HEATING, EXPANSION OF SAID MEDIUM EFFECTS CORRESPONDING EXPANSION OF SAID TUBES SUBSTANTIALLY ONLY TO BE EXTEND OF CLOSING SAID INTERSTICES AND INTEGRATING BY FUSION SAID WALLS OF SAID TUBES TO FORM SAID COMPONENT.
Claim 2
Independent Claim
124 words
THE METHOD OF MAKING A MULTICHANNELLED ELECTRON MULTIPLIER COMPONENT COMPRISING THE STEPS OF: SEALING WITHIN EACH OF A MULTIPLICITY OF ELONGATED TUBES HAVING GLASS WALLS FORMED AT LEAST IN PART OF SECONDARY ELECTRON EMISSIVE MATERIAL A MEDIUM WHICH IS EXPANSIBLE ON BEING HEATED; PLACING SAID TUBES UNDER RIGID CONSTRAINT IN PREARRANGED TIGHTLY BUNDLED SIDE-BY-SIDE PARALLEL RELATIONSHIP WITH EACH OTHER, THERE BEING UNDESIRED INTERSTICES BETWEEN SAID TUBES; AND HEATING SAID CONSTRAINED TUBES TO A TEMPERATURE SUFFICIENT TO SOFTEN THE WALLS THEREOF AND FUSE ONE TO ANOTHER WHEREBY, UNDER THE INFLUENCE OF SAID HEATING, EXPANSION OF SAID MEDIUM EFFECTS CORRESPONDING EXPANSION OF SAID TUBES SUBSTANTIALLY ONLY TO BE EXTEND OF CLOSING SAID INTERSTICES AND INTEGRATING BY FUSION SAID WALLS OF SAID TUBES TO FORM SAID COMPONENT.
References Cited (Backward Citations)
US1926552A
Cited
US2433546A
Cited
US2608722A
Cited
US2752731A
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US3224851A
Cited
US3248464A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-07-17 | 1971-01-16 | 1971-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-17 | 1975-01-16 | 1975-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-17 | 1979-01-16 | 1979-07-18 | $7700.00 | Window Closed / Lapsed |