US3354337A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Convergence magnet pole shoes
Assignee: Zenith Electronics LLC
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Filing: 1966-02-28
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Granted: 1967-11-21
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Expires: 1986-02-28
Abstract
No abstract record available.
Inventors
- 👤 Both Raymond F De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:54
CPC Classifications
H; H01; H01J; H01J29/00; H01J29/46; H01J29/70; H01J29/701; H01J29/702
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
118 words
IN A CONVERGENCE APPARATUS FOR USE WITH A MULTIBEAM COTHODE RAY TUBE HAVING A POLE PIECE PAIR ASSOCIATED WITH AT LEAST ONE OF THE ELECTRON BEAMS AND COMPRISING OUTWARDLY DIRECTED POLE FACES, AN ELECTROMAGNETIC DEVICE FOR SELECTIVELY POSITIONING ONE OF SAID BEAMS COMPRISING: A CORE OF MAGNETIC MATERIAL HAVING A PAIR OF SPACED APART LEGS AND SUPPORTING A CONVERGENCE WINDING; A PAIR OF PERMEABLE POLE SHOES HAVING RESPECTIVE AREAS GREATER THAN THE AREA OF A CORE LEG EXTREMITY; MEANS FOR SUPPORTING SAID POLE SHOES ADJACENT THE EXTREMITIES OF SAID CORE LEGS; AND MEANS FOR MOUNTING SAID CORE AND SAID POLE SHOES UPON THE NECK OF SAID CATHODE RAY TUBE WITH SAID POLE SHOES CONFRONTING SAID POLE PIECE FACES.
Claim 2
Dependent Claim
118 words
IN A CONVERGENCE APPARATUS FOR USE WITH A MULTIBEAM COTHODE RAY TUBE HAVING A POLE PIECE PAIR ASSOCIATED WITH AT LEAST ONE OF THE ELECTRON BEAMS AND COMPRISING OUTWARDLY DIRECTED POLE FACES, AN ELECTROMAGNETIC DEVICE FOR SELECTIVELY POSITIONING ONE OF SAID BEAMS COMPRISING: A CORE OF MAGNETIC MATERIAL HAVING A PAIR OF SPACED APART LEGS AND SUPPORTING A CONVERGENCE WINDING; A PAIR OF PERMEABLE POLE SHOES HAVING RESPECTIVE AREAS GREATER THAN THE AREA OF A CORE LEG EXTREMITY; MEANS FOR SUPPORTING SAID POLE SHOES ADJACENT THE EXTREMITIES OF SAID CORE LEGS; AND MEANS FOR MOUNTING SAID CORE AND SAID POLE SHOES UPON THE NECK OF SAID CATHODE RAY TUBE WITH SAID POLE SHOES CONFRONTING SAID POLE PIECE FACES.
References Cited (Backward Citations)
US2459732A
Cited
US3138730A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-11-20 | 1971-05-22 | 1971-11-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-11-20 | 1975-05-22 | 1975-11-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-11-20 | 1979-05-22 | 1979-11-21 | $7700.00 | Window Closed / Lapsed |